u.s. department of the interior u.s ... alas! tcei3a islands northern chilj cestral alask; sa5t juan...

U.S. DEPARTMENT OF THE INTERIOR

U.S. GEOLOGICAL SURVEY

PRELIMINARY DETERMINATION OF EPICENTERS MONTHLY LISTING

APRIL-JUNE 1999

NATIONAL EARTHQUAKE INFORMATION CENTER

Open-File Report

99-600-B

This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey (USGS) editorial standards. Any use of trade, product or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

2000

USGSscience for a changing world

Pre

u S. Department of the Interior U.S. Geological Survey

ofMonthly Listing

National Earthquake Information Center

APRIL 1999

ORIGIN TIMEUTC

DAY HR MN SEC

GEOGRAPHICCOORDINATESLAT LONG

DEPTH MAGNITUDEGS

MB Msz

01 00 07 52.0& 48.310 N 9.030 E 10

0101

01010101010101010101

0101010101010101010101010101010101

00.00

00000101010102020203

C303C404040505050506060709101010ID

09 3813 46

23 2153 5919 0523 3826 5239 3121 1143 3448 5101 25

25 3649 2637 1644 3349 0715 1836 4452 2158 5416 0240 4349 1054 5008 5029 3543 2147 53

.3* 5

.2& 32

.6* 55

.5* 85

.4& 45

.1% 83-3& 44.6? 41-8& 38.2* 33.4* 30.0& 49

. 6& 11

.7* 29

.0? 22

.0& 42

.4? 10

. 1& 32

.3? 19

.8* 25

.8& 31

.0* 1

.1* 24

.7& 32

.9? 4

.5& 33

.0 2

.7 85

.0 85

.868

.348

.884

.646

.000

.239

.529

.60

.560

.864

.528

.170

.054

.908

.18

.900

.19

.119

.45

.397

.791

.152

.235

.122

.61

.606

.802

.683

.648

NS

NNNNNSNNNN

NNSNNSSNSSSSNSSNN

12671

11083567

17221

141796

62138173

09371

169122707768717571

1368586

.652

.427

.420

.808

.800

.003

.047

.41

.540

.866

.407

.840

.458

.965

.53

.300

.65

.877

.47

.411

.184

.247

.981

.728

.68

.662

.411

.365

.531

EW

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W£S22WEEWWwwwwE£E

13638

10102

107

2145

33101

3392332

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4.5

4.1

3.94.5

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3.44.4

4.74.95.1 5.1

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1214141515151616161516IS _ q

; 3211 1

01124906363825305459245118573536

16.48.52.37.32.04.26.02.49,18.42,27.05.121621

0*8*0&.1*.5?,7&,7?. 1&.0?,1&. 0&.4*.3&.7&.6*.1

86.55.61.20.22.62.31.37.37.36.44.44.18.3242,4

019608438735.57,312,17,670.66.679.200.401.160.09C.859.357

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80.27.

152.175.68.

152.68.20.55.

121.4.

37.67.71.

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91967231235139948

105

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NOETH OF SEVEISCCTH SANDWiaSOUTHERN ALAS!TCEI3A ISLANDSNORTHERN CHILJCESTRAL ALASK;SA5T JUAN PROV:ICtCIAN SEA. <;TX^JMENISTAN- :CSiTRAL CALIFCFF-M$CE. <LDG>PF-INCE EDWARDMCtCA PASSAGE.K£.-_R COAST OFE. RUSSIA-N.ENZV BRITAIN R;

SD NO. REGION, CONTRIBUTED MAGNITUDES AND COMMENTS STA USED

30 GEHHANY. <FBB>. ML 2.7 (VIE), 2.5 (FUR), 2.4 (LOG), 2.2(3TR), 2.1 (FBB), 2.0 (GRF).

1.0 24 MXSOANAO, PHILIPPINE ISLANDS14 NEXS COAST OF CENTRAL CHILE. <GUC>. MD 4.1 (GUC). Felt (III)

a- La Ligua, Papudo and Zapallar. 1.3 11 LA33 BAYKAL REGION, RUSSIA 1.0 8 NCETH OF SEVERKAYA ZEMLYA

8 FRMJCE. <LDG>. ML 1.5 (LUG) . 1.0 7 NOETH OF SVALBARD

18 NORTHERN ITALY. <GEN>. ML 2.2 (GEN), 1.8 (LDG). 1.4 10 SOCTH ISLAND, NEW ZEALAND

4 GR2SCE. <ATH>. MD 2.8 (ATH) . 1.2 6 OFT EAST COAST OF HONSHU, JAPAN1.0 16 XIZANG-INDIA BORDER REGION

8 GERMANY. <FBB>. ML 2.0 (FBB). Mining induced event in the Lcrxaine region, France.

5 WTMOWARD ISLANDS. <TRN>. MD 3.0 (TRN) . 0.8 19 SOTTH OF HONSHU, JAPAN1.1 10 LC-£3iLTY ISLANDS REGION

8 PTESNEES. <LDG>. ML 2.1 (STR) , 1.9 (LDG). 0.7 14 ANDAMAN ISLANDS, INDIA

18 NEAS. COAST OF CENTRAL CHILE. <GUC>. MD 4.5 (GUC) . 1.1 13 VASOATU ISLANDS1.1 14 TATWAN REGION

11 CKTI.K-ARGENTIKA BORDER REGION. <GUC>. MD 3.2 (GUC). 0.9 13 ECUADOR 0.9 18 CKrLE-ARGENTINA BORDER REGION

14 NBAS COAST OF CENTRAL CHILE. <GUC>. MD 4.0 (GUC). 0.5 4 COXjOMBIA. ML 2.6 (RSNC) .

11 NEXR COAST OF CENTRAL CHILE. <GUC>. MD 3.5 (GUC) . 0.8 30 IRTAN JAYA REGION, INDONESIA 0.9 72 NCF-TH OF SEVERKAYA ZEMLYA1.2 146 NC=:7H OF SEVERiCAYA ZEMLYA. Mw 5.4 (HRV) .

Cen-roid, Moment Tensor (HRV): Centroid origin tine 1^:47:52.5; Lat 85.52 N; Lon 81.62 E; Dep 15.0 Fix; Half- cui-ation 1.2 sec; Principal axes (scale 10**17 Na) : (T) Va.l=1.19, Plg=2, Azm=28; (N) Val=0.01, Plg=6, Aza=119; (P) V=.I=-1.20, Plg=84, Azm=283; Best double couple: Mo=1.2*10**17 Nm; NP1: Strike=112, Dip=44, Slip=-99; NP2: Srrrike=304, Dip=47, Slip=-82. . -

AYA ZEMLYA ISLANDS REGION . <AEIC>.

<AEIC>.CE, ARGENTINA. MD 4.0 (GUC).

<ATH>. ML 3.7 (ATH).=AN BORDER REGIONSNIA. <GM-P>. MD 3.5 (GM) . ML 3.5 BRK) .ML 1.8 (LDG). ISLANDS REGION <MPR>. MD 2.4 (MPR). rSNTRAL CHILE. <GUC>. MD 4.4 (GUC!.CHINA BORDER REG.

C-ION, P.N.G. Mw 6.2 (HRV), 6.0 (GS; . Some r>_ildings da.ra.ged (VI) in the Kamdaru area. New Ireland. 7 = lt. on New Britain as far west as Kimbe. Also felt on Bougainville =jnd at Lorengau, Manus.

Moment Tensor ;GS): Dep 15; Principal axes (sca^e 1U**1S Mm.): (T) Val=1.02, Plg=13, Azm=179; (N) Val=0.32, Plg=73,

APR 1999 PAGE 2

01010101010101010101010202020202020202020202020202020202020202020202020202020202020202020202020202020202

020202

21 4821 5021 5422 0122 1222 4522 S323 0223 2223 2523 3000 5401 0101 1801 4301 5202 1702 3203 1003 1903 2103 4704 4304 4404 5505 0505 0705 1405 2605 4206 3606 3606 3906 4607 0707 4107 4308 1908 5109 3909 5110 4311 2011 4312 0812 5413 0213 2513 5215 3016 3616 39

16 5117 0517 05

53.731. 8&00.3*48.6*30. 0&42.5*06.3?13.0*36.1*17.127.358.436.7*30.2?05.8*04.8*59.5*40.6*26.4*39. 4&46. 3&11.9?44.4?52.6?21.3*53.5*47. 3&55. 6&33. 9&29.0*36.1?49.0?59.7626.6*05.1*25.8?24. 3t14.9*55.lt28.3*37.4*37.2?10.7*49. 8&49.1*51. It57.0?43.843. 7&11.7641.6*33.7

32.7*13.7?47.1

4.37739.7704.3624.237

49.1804.26852.354.3594.24915.8320.704

28.2824.64835.7744.40024.14531.3734.2594.554

38.74039.46914.7220.1436.4544.44013.17032.51740.31716.0805.9343.25

19.7759.1744.4944.277

32.2618.2104.22338.91032.43513.52551.1785.53236.90036.54235.71017.1547.64259.86646.50025.40255.936

1.92015.3219.899

SNSSNSNSSNNNSNSSSSSNNNSNSNSNNSSSNSSNNSNNSNNNNNNNNNNN

SNS

152.72521.130152.729152.781

6.840152.747171.26152.719152.76797.320119.66257.112

122.93078.2337.38367.03066.479

152.839152.60420.750122.93696.31

179.7471.0837.325120.82271.813

124.55160.765

147.340149.35133.95137.332152.675152.64691.7868.010152.7613.83092.264

166.72015.8285.5127.02071.0273.320

147.3514.883

153.5435.600

141.597110.018

133.46295.58

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33 N33 N33 N33 N33 N33 N33 N33 N33 N10 G

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33 N33 N33 N

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02 17 27 45-1 51.558 N 178.441 W 33 N 4.6

02 17 53 47.5* 7.049 S02 18 26 16.4t 35.830 N02 18 29 42.66 62.967 N02 18 38 16.9 19.859 S02 18 40 47.9t 32.150 S02 18 44 54.9* 31.864 N02 18 50 01.2? 19.88 S02 19 56 10.8 19.828 S02 20 12 07.6t 38.070 N

0.9 78

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Azm=320; (P) Val=-1.35, Plg=10, Azm=87 ; Best double couple:Mo=1.2*10**18 Nm; NP1: Strike=222, Dip=74, Slip=178; NP2:Strike=313, Dip=88, Slip=16.

Centra id. Moment Tensor (HRV): Centroid origin time21:36:27.7; Lat 4.29 S Fix,- Lon 152.81 E Fix; Dep 16.0 Bdy;Half-duration 3.1 sec; Principal axes (scale 10**18. Nm):(T) Val=1.88, Plg=33, Azm=346; (N) Val=0.73, Plg=46,Azra=214; (P) Val=-2.60, Plg=26, Azm=94; Best double couple'Mo=2.2*10**18 Nm; NPl: Strike=l33, Dip=47, Slip=6; NP2:Strike=39, Dip=86, Slip=13«.

Scalar Moment (PPT): Mo=4.7*10**18 Nm. NEW BRITAIN REGION, P.N.G. GREECE. <ATH>. MD 3.1 (ATH). NEW BRITAIN REGION, P.N.G. NEW BRITAIN REGION, P.N.G. GERMANY. <FBB>. ML 2.1 (FBB). NEW BRITAIN REGION, P.N.G. FOX ISLANDS, ALEUTIAN ISLANDS NEW BRITAIN REGION, P.N.G. NEW BRITAIN REGION, P.N.G. NEAR COAST OF OAXACA, MEXICO MINAHASSA PENINSULA, SULAWESI SOUTHERN IRAN SULAWESI, INDONESIA EASTERN KASHMIR PRINCE EDWARD ISLANDS REGION CHILE-ARGENTINA BORDER REGION LA RIOJA PROVINCE, ARGENTINA NEW BRITAIN REGION, P.N.G. NEW BRITAIN REGION, P.N.G. GREECE. <ATH>. MD 3.0 (ATH). NORTHERN CALIFORNIA. <GM-P>. MD 2.8 (GM). OFF COAST OF OAXACA, MEXICO FIJI ISLANDS REGION AFGHANISTAN-TAJIKISTAN BORD REG. PRINCE EDWARD ISLANDS REGION MINDORO, PHILIPPINE ISLANDSNEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.8 (GUC). NEAR COAST OF NORTHERN CALIF. <GM-P>. MD 3.0 (GM). LEEWARD ISLANDS. <FDF>. MD 2.8 (PDF). EASTERN NEW GUINEA REG., P.N.G. BISMARCK SEANORTHERN TERRITORY, AUSTRALIA SOUTHEASTERN ALASKA. <PGC-P>. ML 4.0 (PGC). NEW BRITAIN REGION, P.N.G. NEW BRITAIN REGION, P.N.G. XIZANGMONA PASSAGE. <MPR>. MD 3.5 (MPR). NEW BRITAIN REGION, P.N.G. SPAIN. <MDD>. nibLg 2.6 (MOD). XIZANGVANUATU ISLANDS POLAND. ML 2.2 (CLL). NORTH OF SEVERNAYA ZEMLYASTRAIT OF GIBRALTAR. <MDD>. mbLg 2.2 (MDD). AFGHANISTAN-TAJIKISTAN BORD REG. STRAIT OF GIBRALTAR. <MDD>. mbLg 2.2 (MDD). MARIANA ISLANDS REGION AUSTRIA. ML 2.3 (VIE). SOUTHERN ALASKA. <AEIC>. FRANCE. <LDG>. ML 2.3 (LOG). VOLCANO ISLANDS REGIONLAKE BAYKAL REGION, RUSSIA. Felt (V) at Verkhnyaya Zaiznka, (IV) at Severobaykalsk and (II) at Irkutsk.

IRIAN JAYA REGION, INDONESIANEAR SOUTH COAST OF MYANMARVANUATU ISLANDS. Mw 6.2 (HRV), 6.1 (GS). Me 6.4 (GS).Broadband Source Parameters (GS): Dep 12; Radiated energy7.5*10*»13 Nm.

Moment Tensor (GS): Dep 4; Principal axes (scale 10**18 Nm): (T) Val=1.55, Plg=24, Azm=101; (N) Val=-0.04, Plg=17, Azm=4; (P) Val=-1.51, Plg=60, Azm=242; Best double couple: MO=1.5*10**18 Nm; NPl: Strike=222, Dip=26, Slip=-49; NP2: Strike=358, Dip=71, Slip=-108.

Centroid, Moment Tensor (HRV): Centroid origin time 17:05:55.1; Lat 19.99 S; Lon 167.98 E; Dep 15.0 Bdy; Half- duration 3.0 sec; Principal axes (scale 10**18 Nm): (T) Val=2.05, Plg=9, Azm=84; (N) Val=-0.15, Plg=10, Azm=175; (P) Val=-1.90, Plg=76, Azm=312; Best double couple: Mo=2.0*10**18 Nm; NPl: Strike=162, Dip=37, Slip=-107; NP2: Strike=3, Dip=55, Slip=-78.

Scalar Moment (PPT): Mo=5.3*10**18 Nm.ANDREANOF ISLANDS, ALEUTIAN IS. ML 4.6 (?MR). Felt (II) on Adak.BANDA SEACRETE. <ATH>. MD 3.4 (ATH).CENTRAL ALASKA. <AEIC>.VANUATU ISLANDS REGIONNEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.5 (GUC).KYUSHU, JAPANVANUATU ISL JUT 17VANUATU ISLANDS REGIONAEGEAN SEA. <ATH>. MD 3.6 (ATH).

APR 1999

02 20 16 32.5 19.902 S 168.087 E 10 G 4.6 1.0 54 VANUATU ISLANDS02 20 45 09.7* 42.134 N 142.413 E 72 ? 4.3 1.1 23 HOKKAIDO, JAPAN REGION. Felt (II JMA) in the Shizunai area

and (I JMA) in other parts of southern Hokkaido.02 20 51 04.1 6.466 S 146.483 E 115 4.6 1.1 44 EASTERN NEW GUINEA REG., P.N.G.02 20 56 58.84 34.303 S 69.991 W 1 13 CHILE-ARGENTINA BORDER REGION. <GUC>. MT 3.6 (GUC).02 21 32 55.74 37.390 N 3.640 W 26 7 SPAIN. <MDD>. mbLg 1.4 (MDD) .02 21 37 41.7 0.238 N 122.362 E 144 D 5.4 0.9 99 MINAHASSA PENINSULA, SULAWESI. Mw 5.4 CEHV) .

Centroid, Moment Tensor (HRV): Centroid origin time 21:37:47.3; Lat 0.72 N; Lon 122.41 E; Dep 141.9; Half- duration 1.2 sec; Principal axes (scale 10**17 Mm) : (T) Val=1.34, Plg=76, Azm=194; (N) Val=-0.22, Plg=0, Azm=104; (P) Val=-l.ll, Plg=14, Azm=13; Best double couple: Mo=1.2*10**17 Nm; NP1: Strike=103, Dip=31, Slip=90; NP2: Strike=284, Dip=59, Slip=90.

02 21 39 10.1& 38.620 N 1.630 W 0 G 6 SPAIN. <MDD>. mbLg 1.7 (MDD).02 21 49 45.2& 38.580 N 1.580 W 5 18 SPAIN. <MDD>. mbLg 2.3 (MDD).02 22 05 49.0* 11.332 N 139.245 E 33 N 4.2 1.0 13 WESTERN CAROLINE ISLANDS02 22 52 36.2& 36.800 N 2.980 W 0 G 7 STRAIT OF GIBRALTAR. <MDD>. mbLg 2.1 (SE3D) .02 23 08 34.7? 61.67 S 154.72 E 10 G 4.3 1.2 13 BALLENY ISLANDS REGION03 00 05 54.0* 9.655 S 112.925 E 33 N 4.3 0.9 17 SOUTH OF JAWA, INDONESIA03 00 31 38.3* 57.679 S 27.078 W 150 G 5.0 1.1 39 SOUTH SANDWICH ISLANDS REGION. Mw 5.5 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 00:31:45.6; Lat 56.80 S; Lon 27.36 W; Dep 148.7; Half- duration 1.0 sec; Principal axes (scale 10**17 Nm) : (T) Val*2.40, Plg=7, Azm=51; (N) Val=-0.21, Plg«54, Azm=311; (P) Val=-2.20, Plg=35, Azm=146; Best double couple: Mo=2.3*10**17 Nm; NP1: Strike=182, Dip=60, Slip=-22; NP2: Strike=283. Dip=71, Slip=-148.

03 00 58 50.4& 59.696 N 152.008 W 63 2.5 65 SOUTHERN ALASKA. <AEIO. ML 2.7 (AEIC) .03 01 31 46.6& 44.677 N 6.775 E 0 20 FRANCE. <GEN>. ML 2.3 (GEN), 1.7 (LDG) .03 01 39 12.0& 44.445 N 6.941 E 6 24 FRANCE. <GEN>. ML 2.2 (GEN), 1.8 (STR) , 1.6 (LDG).03 01 43 06.0? 2.60 N 128.19 E 33N4.4 0.8 7 HALMAHERA, INDONESIA03 01 54 49.6* 4.313 S 152.754 E 33 N 4.1 0.9 14 NEW BRITAIN REGION, P.N.G.03 01 56 23.3* 4.392 S 152.745 E 33 N 4.1 0.9 18 NEW BRITAIN REGION, P.N.G.03 02 46 35.9? 23.12 S 69.11 W 33 N 3.9 0.4 6 NORTHERN CHILE03 04 06 15.lt 34.144 N 116.433 W 3 29 SOUTHERN CALIFORNIA. <PAS-P>. ML 3.1 (PAS).03 04 22 23.6 12.997 N 87.924 W 33 N 5.1 4.9 1.2 205 NEAR COAST OF NICARAGUA. Mw 5.4 (HRV). KD 5.3 (CASC) . Felt

at Tegucigalpa, Honduras.Centroid, Moment Tensor (HRV): Centroid origin time 04:22:25.6; Lat 13.51 N; Lon 87.71 W; Dep 23.5; Half- duration 1.2 sec; Principal axes (scale 10**17 Nm): (T) Val=1.46, Plg=ll, Azm=245; (N) Val=-0.15. Plg=77, Azm=40; (P) Val=-1.31, Plg=5, Azm=154; Best double couple: Mo=1.4*10**17 Nm; NP1: Strike=289, Dip=78, Slip=176; NP2: Strike=20, Dip=86, Slip=12.

03 04 36 56.6& 34.958 N 33.758 E 30 6 CYPRUS REGION. <CSS>. ML 3.3 (CSS) .03 04 46 08.6? 30.47 N 138.59 E 446 ? 1.2 9 SOUTH OF HONSHU, JAPAN03 04 53 11.3? 47.44 S 32.36 E 10 G 4.6 0.5 6 PRINCE EDWARD ISLANDS REGION03 04 53 27.1* 12.989 N 87.806 W 33 N 4.2 1.1 22 NEAR COAST OF NICARAGUA03 04 58 19.5- 59.390 N 152.877 W 100 G 0.7 8 SOUTHERN ALASKA03 05 04 28.9? 36.32 N 1.06 E 10 G 1.2 17 NORTHERN ALGERIA. mbLg 2.1 (MDD).03 05 29 02.5& 38.890 N 3.790 W 11 9 SPAIN. <MDD>. mbLg 1.7 (MDD).03 05 35 55.34 37.430 N 3.470 W 15 9 SPAIN. <MDD>. mbLg 1.5 (MDD).03 05 46 47.2 54.767 N 161.292 E 33 N 4.2 1.0 29 NEAR EAST COAST OF KAMCHATKA03 05 53 07.6* 14.812 N 144.406 E 33 N 4.2 0.9 16 MARIANA ISLANDS03 05 53 23.1 30.813 S 71.361 W 79 3.8 0.9 43 NEAR COAST OF CENTRAL CHILE. MD 4.5 (GCC) .03 06 00 03.8* 14.793 N 144.498 E 33 N 4.1 1.0 10 MARIANA ISLANDS03 06 17 18.3 16.660 S 72.662 W 87 D 6.16.2 0.9 422 NEAR COAST OF PERU. Mw 6.8 (GS) , 6.8 (EHV). Me 6.5 (GS) . One

person killed in the Camana area. Fifty people injured and at least 300 houses damaged (VI) in the Arequipa area. Felt (IV) at Nazca and Pisco; (III) at lea and Moquegua; (II) at Cuzco and Lima. Also felt (V) at Arica and Put re; (IV) at Camarones, Camina, Codpa, Iquigue and ?ozo Almonte; (III) at Huara and Pica, Chile. Landslides temporarily blocked the Pan American Highway at four loca-ions in southern Peru.

Broadband Source Parameters (GS): Dep 55; NP1: Strike=285, Dip=75, Slip=-70; NP2: Strike=50, Dip=25, Slip=-142; Radiated energy 1.3*10**14 Nm. Two evs^^s about 3.5 seconds apart. Depth based on first event.Moment Tensor (GS): Dep 88; Principal axes (scale 10**19 Nm): (T) Val=2.19, Plg=32, Azm=58; (N) Val=-0.12, Plg=31, Azm=306; (P) Val=-2.08, Plg=42, Azm=lS3; Best double couple: Mo=2.1*10**19 Nm; NP1: Strike=204, Dip=32, Slip*-11; NP2: Strike=303, Dip=84, Slip=-121.

Centroid, Moment Tensor (HRV): Centroid origin time 06:17:24.3; Lat 16.38 S; Lon 72.54 W; Dep 89.4; Half- duration 5.9 sec; Principal axes (scale 10**19 Nm) : (T) Val=2.03, Plg=25, Azm=20; (N) Val=-0.12, Plg=l, Azm=289; (P) Val=-1.90, Plg=65, Azm=197; Best double couple: Mo=2.0*10**19 Nm; NP1: Strike=112, Dip = 20, Slip=-87; NP2: Strike=289, Dip=70, Slip=-91. Scalar Moment (PPT): Mo=2.2*10**19 Nm.

03 06 42 21.5" 5.721 S 102.861 E 34 D 4 .8 1.1 19 SOUTHERN SUMATERA, INDONESIA03 06 47 04.5i 38.600 N 0.66C W 15 6 SPAIN. <MDD>. mbLg 2.1 (MDD).03 06 54 54.1 41.367 N 20.808 E 10 G 1.0 11 ALBANIA. MD 2.7 (PDG).03 07 07 09.9 7.096 S 129.05" E 33 N 4.4 1.4 24 BANDA SEA03 07 10 36.3? 36.41 N 70.57 E 164 ? 3.5 1.0 10 HINDU KUSH REGION, AFGHANISTAN03 07 31 57.1* 27.969 N 128.924 E 79 * 3.3 1.0 9 RYUKYU ISLANDS03 08 25 30.3? 23.98 N 121.93 E 91 * 3.2 1.2 6 TAIWAN03 08 38 53.5* 2.579 S 140.344 E 33 N 3.9 1.1 10 NEAR NORTH COAST OF IRIAN JAYA03 09 09 21.5* 4.297 S 152.65" E 33 N 4.0 1.2 19 NEW BRITAIN REGION, P.N.G.03 09 22 47.li 1.568 N 146.311 W 40 65 SOUTHERN ALASKA. <AEIC>. ML 3.1 (AEIC, 3.4 (PMR).03 10 10 30.7 13.173 N 87.634 W 38 5.5 5.7 0.9 266 HONDURAS. Mw 6.0 (HRV). MD 5.9 (CASC). trie house damaged at

APR 1999 PAGE 4

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Amapala. Felt at Tegucigalpa. Also felt in parts ofnorthwestern Nicaragua. Centroid, Moment Tensor (HRV) : Centroid origin time10:10:34.5; Lat 13.53 N; Lon 87.57 W; Dep 28.5 Fix; Half-duration 2.4 sec; Principal axes (scale 10**18 Nm) : (T)Val=1.10. Plg=21, Azm=249; (N) Val=-0.09, Plg=61, Azm=21 ;(P) Val=-1.01, Plg=20, Azm=151; Best double couple:Mo=l.l*10**18 Nm; NP1: Strike=290, Dip=61, Slip=179; NP2 :Strike=20, Dip=89, Slip=29.

NORTH OF SEVERNAYA ZEMLYA HONDURAS. MD 4.2 (CASC) . FRANCE. <LDG>. ML 1.4 (LDG) . NEAR COAST OF NICARAGUA. MD 4.2 (CASC).BAJA CALIFORNIA, MEXICO. <PAS-P>. ML 3.4 (PAS). MD 3.3 (ECX) . CHILE-BOLIVIA BORDER REGION SOUTHERN ALASKA. <AEIC>. ML 2.7 (AEIC) . NORTHERN ITALY. <GEN>. ML 2.4 (GEN), 2.1 (LDG). ANDREANOF ISLANDS, ALEUTIAN IS.MENDOZA PROVINCE, ARGENTINA. <GUC>. MD 3.4 (GUC) . TRINIDAD. <TRN>. MD 2.6 (TRN) . NORTHERN ITALY. <GEN>. ML 1.9 (GEN). VANCOUVER ISLAND REGION. <PGC-P> . MD 3.1 (SEA). Felt (III)at Victoria, British Columbia. Also felt at Sidney, Sookeand Shawnigan Lake, British Columbia.

FIJI ISLANDS REGION FRANCE. <LDG>. ML 1.7 (LOG). GERMANY. <FBB>. ML 3.4 (LDG), 3.1 (STR) , 3.1 (UCC) , 2.8(FBB) .

HOKKAIDO, JAPAN REGION WINDWARD ISLANDS. <FDF>. MD 2.2 (PDF). SOUTHEAST INDIAN RIDGE IONIAN SEA. <ATH>. MD 3.3 (ATH) . SVALBARD REGION GREENLAND SEA NORTHWESTERN CAUCASUS NORTHERN IRANSTRAIT OF GIBRALTAR. <MDD>. mbLg 2.3 (MOD). SOUTHEAST INDIAN RIDGE GERMANY. <STR>. ML 3.1 (LDG), 2.7 (STR), 2.7 (UCC), 2.4(GRF) .

GERMANY. <STR>. ML 2.3 (LDG), 2.2 (STR). OFF COAST OF CENTRAL AMERICA. MD 4.5 (CASC). FIJI ISLANDS REGIONAUSTRIA. ML 2.4 (STR). 2.4 (LDG), 2.2 (VIE). ALBANIA. MD 3.0 (PDG) . NORTH OF SEVERNAYA ZEMLYA LOYALTY ISLANDS REGION NORTH OF SEVERNAYA ZEMLYA SOUTH SANDWICH ISLANDS REGION SOUTHERN ALASKA. <AEIC>. ML 2.5 (AEIC). HONDURAS. MD 4.4 (CASC). CELEBES SEA CELEBES SEA ROMANIANEAR ISLANDS, ALEUTIAN ISLANDS CENTRAL ALASKA. <AEIC>. CRETEFIJI ISLANDS REGION BISMARCK SEA. Mw 5.4 (HRV). Centroid, Moment Tensor (HRV) : Centroid origin time03:49:53.6; Lat 3.29 S; Lon 148.92 E; Dep 15.0 Fix; Half-duration 1.2 sec; Principal axes (scale 10**17 Nm) : (T)Val=1.58, Plg=3, Azm=329; (N) Val=-0.16, Plg=77, Azm=224;(?) Val=-1.42, Plg=13, Azm=60; Best double couple:Mo=1.5*10**17 Nm; NP1: Strike=104, Dip=79, Slip=-7; NP2:Strike=195, Dip=84, Slip=-169.

BISMARCK SEA BISMARCK SEA BISMARCK SEA TAIWAN. Felt (IV JMA) in parts of I-lan County. Felt (IIIJMA) at I-lan; (II JMA) at Hua-lien and Taipei; (I JMA) atChia-i and Tai-chung. -

OFF COAST OF CENTRAL CHILE NORTHERN CALIFORNIA. <GM-P>. Mw 3.9 (BRK) . ML 3.7 (GM) , 3.8(BRK) . Felt at Healdsburg, Kelseyville and Santa Rosa.

Moment Tensor (BRK) : Dep 5; Principal axes (scale 10** 14Na) : (T) Val=7.60, Plg=4, Azm=296; (N) Val=0.00, Plg=16,Azm=205; (P) Val=-7.60, Plg=73, Azm=39; Best double couple:Mo=7.6*10**14 Nm; NP1 : Strike=191, Dip=51, Slip=-lll; NP2 :Strike=42, Dip=43, Slip=-66.

ALASKA PENINSULA. <AEIC> . CYPRUS REGION. <CSS>. ML 2.2 (CSS) . VANUATU ISLANDSEASTERN SIBERIA, RUSSIA. ML 4.3 (AEIC). EASTERN NEW GUINEA REG., P.N.G.CENTRAL CALIFORNIA. <GM-P>. MD 3.1 (GM) . ML 3 . 0 (BRK). NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.5 (GUC). GREECE. <ATH> . ML ?.4 (ATH). CYPRUS REGION. <CSS>. ML 2 . 6 (CSS). CHILE-ARGENTINA BORDER REGIONNEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.S v^T) . OAXACA, MEXICO. Mw 5.4 (HRV). Cancroid, Moment Tensor (HRV) : Centroid origin time

APR 1999

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10:37:02.1; Lat 15.89 N; Lon 96.94 W; Dep 15.0 Boy; Half- duration 1.2 sec; Principal axes (scale 10**17 Jfia): (T) Val=1.60, Plg=65, Azm=19; (N) Val=0.00, Plg=3, Azs=283; (P) Val=-1.60, Plg=25, Azm=192; Best double couple: Mo=1.6*10**17 Nm; NPI: Strike=276, Dip=20, Slip=32; NP2: Strike=104, Dip=70, Slip=93.

WINDWARD ISLANDS. <TRN>. MD 2.5 (TRN). EASTERN MEDITERRANEAN SEA. ML 3.8 (CSS). MID-INDIAN RIDGE NORTH OF SEVERNAYA ZEMLYA RYOKYU ISLANDS HOKKAIDO, JAPAN REGION TAIWAN REGIONPRINCE EDWARD ISLANDS REGION SOUTH INDIAN OCEAN IRIAN JAYA REGION, INDONESIA IONIAN SEA. <ATH>. MD 3.0 (ATH). LAKE BAYKAL REGION, RUSSIA SOUTHERN BOLIVIA NEAR NORTH COAST OF IRIAN JAYA FRANCE. <GEN>. ML 2.3 (GEN), 1.9 (LDG). NORTHERN IRANZAIRE. Felt at Fort Portal, Uganda.NORTHERN CALIFORNIA. <GM-P>. MD 3.1 (GM). ML 3.0 (3RK). MARIANA ISLANDS REGION NORTH OF SEVERNAYA ZEMLYA OFF COAST OF MEXICO MINDANAO, PHILIPPINE ISLANDSNORTHERN ITALY. <GEN>. ML 2.8 (GEN), 2.5 (LDG), 2.4 (STR). KERMADEC ISLANDS, NEW ZEALAND FIJI ISLANDS REGIONNEAR COAST OF CENTRAL CHILE. <GUC>. MD 4.6 (GUC). Felt (V) at Rancagua; (IV) at Papudo and Santiago; (III) at Valparaiso, Vina del Mar and Zapallar; (II) at La Calera, Llaillay and San Antonio. SOLOMON ISLANDS CENTRAL ITALYIONIAN SEA. <ATH>. ML 3.6 (ATH). TRINIDAD. <TRN>. MD 2.7 (TRN). PYRENEES. <LDG>. ML 2.0 (STR), 1.7 (LDG). EASTERN HONSHU, JAPAN FIJI ISLANDS REGION KYRGYZSTANSALTA PROVINCE, ARGENTINA SOUTHERN ITALY SUMBA REGION, INDONESIA VANUATU ISLANDSCHILE-ARGENTINA BORDER REGION. <GUC>. MD 4.3 (GUC; . SWITZERLAND. <LDG>. ML 1.6 (LDG), 1.6 (STR). CERAM SEANEAR S. COAST OF HONSHU, JAPAN SOUTHERN ALASKA. <AEIC>. SOUTH SANDWICH ISLANDS REGIONSOUTHERN ITALY. MD 3.9 (PDG), 3.8 (ROM). ML 3.8 (LDG). NEGROS, PHILIPPINE ISLANDS SPAIN. <MDD>. mbLg 1.8 (MDD). NORTH OF SEVERNAYA ZEMLYA HOKKAIDO, JAPAN REGION EASTERN NEW GUINEA REG., P.N.G. FRANCE. <GEN>. ML 2.3 (GEN), 2.1 (LDG). VANUATU ISLANDS NORTH OF SEVERNAYA ZEMLYA DODECANESE ISLANDS. <ATH>. CENTRAL PERUNORTH OF SEVERNAYA ZEMLYA NEAR EAST COAST OF HONSHU, JAPAN. Felt (I JMA) insoutheastern Aomori and many parts of Iwate Prefectures.

NEW BRITAIN REGION, P.N.G. Mw 7.4 (GS), 7.4 (HRV) . Me 7.3 (GS) . Felt strongly at Kimbe. Also felt at Port Moresby, New Guinea.Broadband Source Parameters (GS): Dep 138; NPI: S~rike=115, Dip=75, Slip=70; NP2: Strike=350, Dip=25, Slip=142; Radiated energy 1.9*10**15 Nm. Complex event. A small event is followed by a larger one about 6 seconds later. Depth based on second event.

Moment Tensor (GS): Dep 137; Principal axes (scale 10**20 Nm): (T) Val=1.31, Plg=65, Azm=4; (N) Val=0.04, ?lg=l, Azm=273; (P) Val=-1.36, Plg=25, Azm=183; Best d=ui>le couple: Mo=1.3*10**20 Nm; NPI: Strike=271, Dip=i:, Slip=88; NP2: Strike=93, Dip=70, Slip=91.Centroid, Moment Tensor (HRV): Centroid origin ei^e 11:08:16.7; Lat 5.65 S; Lon 149.71 E; Dep 149.4; Half- duration 13.3 sec; Principal axes (scale 10**2C rta) : (T) Val=1.55, Plg=60, Azm=14; (N) Val=-0.08, Plg=7, :^zm=272; (P) Val=-1.48, Plg=29, Azm=l78; Best double courle: Mo=1.5*10**20 Nm; NPI: Strike=248, Dip=17, Slip = 5; NP2 .- Strike=94, Dip=75, Slip=97.

Scalar Moment (?PT): Mo=l.0*10**20 Nm. SOUTH C? HONSHU, JAPAN SOUTH CF HONSHU, JAPAN KURIL :S1ANDSNORTHEF.N ITALY. <GEN>. ML 2.2 (GEN). CENTRA!. ALASKA. <AEIC>. ML 2.9 (AEIC), 2.9 (PMR> -

APR 1999 PAGE 6

05 13 44 19.2* 23.454 S 68.656 W 100 G 4.1 0.9 13 NORTHERN CHILE05 14 25 17.1* 21.570 S 176.699 W 300 G 4.3 0.8 27 FIJI ISLANDS REGION05 14 49 21.96 35.750 N 3.610 W 0 G 17 STRAIT OF GIBRALTAR. <MDD>. mbLg 2.6 (MOD).05 17 04 17.3* 37.578 N 57.168 E 33 N 3.8 0.9 10 TURKMENISTAN-IRAN BORDER REGION05 18 07 42.0 43.548 N 147.535 E 43 D 4.6 0.9 64 KURIL ISLANDS05 19 02 30.2? 19.16 S 177.75 W 600 G 3.9 1.0 16 FIJI ISLANDS REGION05 19 39 38.56 34.177 S 70.882 W 81 8 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 1.9 (GUC).05 20 02 44.0* 4.648 S 152.872 E 33 N 3.7 0.8 12 NEW BRITAIN REGION, P.N.G.05 20 03 28.3* 57.860 N 32.482 W 10 G 4.0 3.5 1.2 18 NORTH ATLANTIC OCEAN05 20 16 20.9* 5.890 S 147.275 E 120 D 4.5 1.1 22 EASTERN NEW GUINEA REG., P.N.G.05 20 38 24.16 37.630 N 21.210 E 5 12 SOUTHERN GREECE. <ATH>. ML 3.5 (ATH).05 20 48 09.26 37.350 N 20.860 E 9 4 IONIAN SEA. <ATH>. MD 3.2 (ATH).05 20 54 33.56 37.480 N 21.010 El 4 SOUTHERN GREECE. <ATH>. MD 2.9 (ATH).05 20 54 51.8* 54.017 N 163.311 W 33 N 3.7 1.3 13 UNIMAK ISLAND REGION05 21 50 14.5fc 46.300 N 3.800 E . 9 14 FRANCE. <LDG>. ML 2.0 (STR), 1.8 (LOG).05 22 08 16.96 38.792 N 122.775 W 3 10 NORTHERN CALIFORNIA. <GM-P>. MD 3.3 (GM). ML 3.5 (BRK).05 22 13 41.6* 85.719 N 84.614 E 10 G 3.4 0.7 5 NORTH OF SEVERNAYA ZEMLYA05 22 32 56.5 24.908 N 93.678 E 66 D 5.3 0.8 309 MYANMAR-INDIA BORDER REGION. Mw 5.6 (HRV). Felt at Shillong

and in parts of Arunachal Pradesh, Manipur, Meghalaya and Tripura, India. Also felt in the Rangpur area, Bangladesh.

Centroid, Moment Tensor (HRV): Centreid origin time 22:32:56.8; Lat 24.50 N; Lon 93.96 E; Dep 65.1; Half- duration 1.6 sec; Principal axes (scale 10**17 Nra): (T) Val=2.22, Plg=30, Azm=304; (N) Val=0.59. Plg=58, Azm=144; (P) Val=-2.81, Plg*9, Azm=39; Best double couple: Mo=2.5*10**17 Nm; NP1: Strike=86, Dip=62, Slip=16; NP2: Strike=348, Dip»76, Slip=151.

05 22 43 46.86 37.360 N 20.890 E 5 4 IONIAN SEA. <ATH>. MD 3.2 (ATH).05 23 04 17.3 86.077 N 79.324 E 10 G 4.2 1.2 27 NORTH OF SEVERNAYA ZEMLYA05 23 10 57.26 37.530 N 21.000 E 5 10 SOUTHERN GREECE. <ATH>. ML 3.5 (ATH).05 23 11 00.0* 44.542 N 28.268 W 10 G 4.2 1.4 32 NORTHERN MID-ATLANTIC RIDGE05 23 36 51.5* 10.636 N 141.976 E 33 N 4.7 1.2 24 WESTERN CAROLINE ISLANDS06 00 05 20.9& 44.800 N 6.700 E 2 9 FRANCE. <LDG>. ML 1.6 (LDG).06 00 08 22.9 39.400 N 38-307 E 10 G 5.1 4.7 1.2 250 TURKEY. Mw 5.4 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 00:08:28.3; Lat 39.40 N Fix; Lon 38.31 E Fix; Dep 15.0 Fix; Half-duration 1.2 sec; Principal axes (scale 10**17 Nm) : (T) Val=1.56, Plg=31, Azm=291; (N) Val=-0.40, Plg=48, Azm=63; (P) Val=-1.16, Plg=25, Azm=185; Best double couple: Mo=1.4*10**17 Nm; NP1: Strike=326, Dip=49, Slip=175; NP2: Strike=59, Dip=86, Slip=41.

06 00 33 13.3* 19.867 S 168.075 E 10 G 5.0 1.1 60 VANUATU ISLANDS06 00 35 58.9& 48.360 N 7.380 E 2 G 10 FRANCE. <STR>. ML 2.0 (STR).06 00 41 09.5 41.451 N 107.741 W 10 G 4.3 0.7 48 WYOMING. ML 4.3 (GS). Damage to a house about fifty

kilometers north of Baggs. Also some damage at Wamsutter. Felt at Baggs, Encampment, Rawlins, Rock Springs, Saratoga and Sinclair. Also felt at Craig and Steamboat Springs, Colorado.

06 00 53 35.5fc 38.867 N 122.795 W 2 7 NORTHERN CALIFORNIA. <GM-P>. MD 2.7 (GM) .06 01 28 09.7* 24.439 N 127.521 E 33 N 4.2 0.2 7 SOUTHEAST OF RYUKYU ISLANDS06 02 09 16.0? 3.89 N 77.93 W 170 ? 4.0 1.4 10 NEAR WEST COAST OF COLOMBIA06 03 58 46.0 3.891 N 78.062 W 33 N 4.84.7 0.9 71 SOUTH OF PANAMA06 04 16 45.2 8.424 S 39.262 E 10 G 4.9 4.4 0.7 76 TANZANIA06 04 51 05.7 24.451 N 46.374 W 10 G 5.3 5.5 1.1 308 NORTHERN MID-ATLANTIC RIDGE. Mw 5.9 (GS), 5.8 (HRV).

Moment Tensor (GS): Dep 6; Principal axes (scale 10**17 Nm): (T) Val=7.83, Plg=18, Azm=255; (N) Val=-0.12, Plg=2, Azm=164; (P) Val=-7.71, Plg=71, Azm=68; Best double couple: Mo=7.8*10**17 Nm; NP1: Strike=348, Dip=27, Slip=-86; NP2: Strike=163, Dip=63, Slip=-92.

Centroid, Moment Tensor (HRV): Centroid origin time 04:51:12.3; Lat 24.41 N; Lon 46.23 W; Dep 15.0 Bdy ; Half- duration 2.2 sec; Principal axes (scale 10**17 Nm): (T) Val=6.35, Plg=8, Azm=268; (N) Val=-0.69, Plg=10, Azm=359; (P) Val=-5.66, Plg=78, Azm=141; Best double couple: Mo=6.0*10**17 Nm; NP1: Strike=347, Dip=38, Slip=-106; NP2: ' Strike=187, Dip=53, Slip=-78.

06 05 16 31.5* 21.201 S 174.015 W 33 N 4.8 4.3 0.9 31 TONGA ISLANDS06 05 27 02.4* 19.887 S 168-211 E 10 G 4.4 1.0 15 VANUATU ISLANDS06 06 19 24.16 10.761 N 62.429 W 61 8 NEAR COAST OF VENEZUELA. <TRN>. MD 3.5 (TRN).06 06 46 55.76 59.632 N 152.271 W 80 56 SOUTHERN ALASKA. <AEIC>.06 07 45 36.7 34.326 S 72.006 W 39 D 5.0 5.1 1.0 103 NEAR COAST OF CENTRAL CHILE. MD 4.9 (GUC). Felt (IV) at

Coya, Rancagua and Santiago,- (III) at Maipo, Pichilemu, San Antonio, San Fernando, Santa Cruz, Talca, Valparaiso and Vina del Mar.

06 08 12 32.6fc 34.188 S 71.858 W 36 13 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.4 (GUC).06 08 20 57.56 54.606 N 161.293 W 15 14 ALASKA PENINSULA. <AEIC>. ML 2.6 (AEIC).06 08 22 14.2 6.527 S 147.007 E 33 N 5.8 6.2 1.3 218 EASTERN NEW GUINEA REG., P.N.G. Mw 6.4 (GS), 6.3 (HRV). Me

6.1 (GS). ML 6.1 (PMG). Felt at Lae and in National Capital Province.

Broadband Source Parameters (GS): Dep 18; NP1: Strike=130, Dip=70, Slip=90; NP2: Strike=310, Dip=20, Slip=90; Radiated energy 2.8*10**13 Nm.

Moment Tensor (GS): Dep 3; Principal axes (scale 10**18 Nm): (T) Val=4.81, Plg=51, Azm=26; (N) Val=-0.67, Plg=2, Azm=118; (P) Val=-4.15, Plg=39, Azm=210; Best double couple: Mo=4.5*10**18 X=? NP1: Strike=315, Dip=6, Slip=106; NP2: Strike=118, Dip=84, Slip=88.

Centroid, Moment Tensor (HRV): Centroid origin time 08:22:21.4; Lat 6.50 S; Lon 147.03 E; Dep 17.0 Bdy; Half- duration 3.6 sec; Principal axes (scale 10**18 Nm)-. (T) Val=3.49, Plg=56, Azm=4i; (N) Val=0.02, Plg=5, Azm=304; (P) Val=-3.52, Plg=33, Azm=211; Best double couple: Mo=3.5*10**18 Nm; NP1: Strike=284, Dip=13, Slip=69; NP2:

APR 1999

Strike=125, Dip=78, Slip=95. Scalar Moment (PPT): Mo=1.4*10**18 Km.

06 08 53 38.6* 6.298 S 146.995 E 33 N 4.2 1.2 12 EASTERN NEW GUINEA REG., P.N.G. 06 09 00 49.96 34.189 S 71.846 W 37 13 NEAR COAST OF CENTRAL CHILE. <GUC>. 06 09 0553.7? 6.46 S 146.95 E 33 N 3.9 0.5 8 EASTERN NEW GUINEA REG., P.N.G. 06 09 16 16.3? 6.30 S 147.03 E 33 N 3.7 1.1 8 EASTERN NEW GUINEA REG., P.N.G. 06 09 35 38.1? 6.35 S 147.37 E 33 N 4.2 1.4 7 EASTERN NEW GUINEA REG., P.N.G. 06 10 00 21.5* 24.470 N 46.434 W 10 G 4.5 1.3 13 NORTHERN MID-ATLANTIC RIDGE 06 10 05 24.8 85.600 N 85.728 E 10 G 4.5 4.6 0.9 73 NORTH OP SEVERNAYA ZEMLYA06 10 14 27.0* 86.124 N 77.092 E 10 G 3.8 1.2 9 NORTH OP SEVERNAYA ZEMLYA06 10 29 04.2 6.370 S 147.040 E 33 N 4.7 4.6 1.2 25 EASTERN NEW GUINEA REG., P.N.G. ML 4.8 (PMG).06 10 41 18.26 58.394 N 155.077 W 118 11 ALASKA PENINSULA. <AEIC>.06 10 43 35.6? 22.60 S 179.24 W 581 ? 4.6 1.1 26 SOUTH OP FIJI ISLANDS06 10 56 06.06 34.530 S 70.360 W 16 9 CHILE-ARGENTINA BORDER REGION. <GUC>.06 11 26 21.4 6.420 S 146.946 E 33 N 5.4 5.2 0.9 115 EASTERN NEW GUINEA REG., P.N.G. Mw 5.5 (HRV) .

Centroid, Moment Tensor (HRV): Centroid origin time 11:26:28.9; Lat 6.63 S; Lon 146.35 E; Dep 21.8; Half- duration 1.2 sec; Principal axes (scale 10**17 Nm) : (T) ' Val=1.61, Plg=56, Azm*359; (N) Val=0.46, Plg=7, Azm=100; (P) Val=-2.06, Plg=32, Azm=195; Best double couple: Mo=1.8*10**17 Nm; NP1: Strike=311, Dip=14, Slip=122; NP2: Strike=99, Dip=78, Slip*82.

06 11 26 54.3? 24.15 N 46.63 W 10 G 4.3 1.0 11 NORTHERN MID-ATLANTIC RIDGE06 12 06 37.4? 5.34 S 147.62 E 33 N 3.7 1.3 7 EASTERN NEW GUINEA REG., P.N.G.06 12 32 32.7 37.493 N 20.789 E 48 4.2 1.2 46 IONIAN SEA. MD 4.0 (ATH) .06 13 18 55.6* 59.859 S 26.457 W 33 N 4.7 0.9 17 SOUTH SANDWICH ISLANDS REGION06 13 35 02.8* 6.474 S 147.090 E 33 N 3.9 1.2 10 EASTERN NEW GUINEA REG., P.N.G.06 13 36 36.26 54.088 N 164.064 W 12 18 UNIMAK ISLAND REGION. <AEIC>. ML 2.5 (AEIC) .06 135028.1 6.394 S 147.078 E 33 N 4.8 1.1 30 EASTERN NEW GUINEA REG., P.N.G. ML 4.7 (PMG).06 14 27 50.06 65.215 N 148.493 W 16 22 NORTHERN ALASKA. <AEIC>. ML 2.5 (AEIC), 2.6 (PMR) .06 15 17 10.76 18.840 N 66.560 W 13 4 PUERTO RICO REGION. <MPR>. MD 2.9 (MPR) .06 15 17 40.0* 6.695 S 146.578 E 33 N 3.9 1.2 10 EASTERN NEW GUINEA REG., P.N.G.06 16 09 03.8* 6.394 S 147.028 E 33 N 4.3 1.5 16 EASTERN NEW GUINEA REG., P.N.G.06 16 14 39.5* 24.898 N 122.543 E 33 N 4.6 1.2 12 TAIWAN REGION06 16 22 55.4* 14.867 N 143.778 E 33 N 4.8 1.2 15 MARIANA ISLANDS REGION06 16 50 21.6? 24.88 N 126.57 E 33 N 3.9 1.4 11 RYUKYU ISLANDS06 16 52 01.2* 85.633 N 85.708 E 10 G 4.4 1.3 14 NORTH OP SEVERNAYA ZEMLYA06 17 06 09.6* 51.548 N 16.098 E 5 G 0.8 6 POLAND. MG 2.8 (WAR).06 17 36 11.0* 5.188 S 146.828 E 33 N 4.4 1.0 10 EASTERN NEW GUINEA REG., P.N.G.06 17 53 05.9* 6.546 S 147.214 E 33 N 3.8 0.9 7 EASTERN NEW GUINEA REG., P.N.G.06 17 59 20.3* 1.687 N 128.562 E 67- * 3.9 1.1 11 HALMAHERA, INDONESIA06 18 32 52.9* 6.408 S 147.059 E 33 N 4.1 1.4 12 EASTERN NEW GUINEA REG., P.N.G.06 19 10 34.7 6.404 S 146.919 E 33 N 4.8 4.3 1.2 33 EASTERN NEW GUINEA REG., P.N.G. ML 5.0 (PMG) .06 19 21 39.4 40.742 N 20.629 E 10 G 1.3 20 GREECE-ALBANIA BORDER REGION. MD 3.1 (ATH), 2.9 (PDG) .06 19 37 24.0 30.414 N 79.321 E 10 G 5.1 0.8 208 XIZANG-INDIA BORDER REGION. Several houses damaged in the

Garhwal District, India.06 20 04 48.96 42.810 N 7.240 WO 6 SPAIN. <MDD>. mbLg 2.9 (MOD). Felt (III) at Becerrea.06 20 44 21.6* 2.149 N 126.230 E 33 N 3.9 0.9 10 NORTHERN MOLUCCA SEA06 20 46 40.0 30.330 N 79.343 E 10 G 4.6 0.9 58 XIZANG-INDIA BORDER REGION. Felt in the Garhwal District,

India.06 21 00 17.3 .412 S 147.001 E 33 N 4.9 4.4 1.2 34 EASTERN NEW GUINEA REG., P.N.G. ML 4.8 (PMG) .06 21 03 39.2 15.314 N 60.347 W 33 N 4.6 1.3 60 LEEWARD ISLANDS. MD 4.5 (TRN). Felt (III) on Martinique.06 21 09 32.7 6.339 S 146.944 E 33 N 4.5 4.4 1.0 26 EASTERN NEW GUINEA REG., P.N.G.06 21 30 41.1* 6.447 S 147.233 E 33 N 3.8 1.4 12 EASTERN NEW GUINEA REG-, P.N.G.06 21 30 41.46 15.018 N 60.496 W 52 4 LEEWARD ISLANDS. <FDF>. MD 2.1 (PDF) .06 22 38 21.56 33.886 S 70.082 W 5 14 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 4.1 (GUC) .06 22 42 37.66 33.893 S 70.076 W 5 9 CHILE-ARGENTINA BORDER REGION. <GUC>.06 22 45 47.3* 35.615 S 110.291 W 10 G 4.8 0.7 20 SOUTHERN EAST PACIFIC RISE06 22 50 34.9* 11.498 N 87.396 W 33 N 4.0 1.5 19 NEAR COAST OF NICARAGUA. ML 3.9 (CASC) .07 00 14 08.8* 5.614 S 154.382 E 100 G 4.6 1.4 15 SOLOMON ISLANDS >07 01 01 55.46 37.600 N 21.130 E 5 3.7 35 SOUTHERN GREECE. <ATH>. ML 3.7 (ATH) .07 01 04 48.06 36.870 N 5.520 W 0 G 6 STRAIT OF GIBRALTAR. <MDD>. mbLg 1.8 (MOD) .07 03 16 28.5 6.436 S 146.963 E 33 N 4.9 4.4 0.9 33 EASTERN NEW GUINEA REG., P.N.G.07 03 32 08.16 43.815 N 7.672 E 17 8 NEAR SOUTH COAST OP FRANCE. <GEN>. ML 2.0 (GEN).07 03 45 18.0 43.796 N 128.093 W 10 G 3.2 0.8 53 OFF COAST OF OREGON07 04 18 19.1 55.875 N 109.966 E 10 G 4.8 1.0 77 LAKE BAYKAL REGION, RUSSIA. Felt (V) at Klchera and

Verkhnyaya Zaimka; (IV) at Severobaykalsk; (II) at Irkutsk.07 04 30 55.46 35.084 S 70.617 WO 14 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.8 (GUC). 07 04 37 03.9& 44.120 N 8.634 E 10 10 NORTHERN ITALY. <GEN>. ML 2.4 (GEN). 07 05 04 10.3* 24.965 N 108.964 W 10 G 3.9 1.1 17 GULF OP CALIFORNIA07 05 35 34.3 40.163 N 20.629 E 10 G 0.9 7 GREECE-ALBANIA BORDER REGION. MD 3.1 (ATH).07 06 26 40.16 32.593 N 116.163 W 9 14 CALIF. -BAJA CALIF. BORDER REGION. <PAS-P>. ML 4.0 (PAS). MD

3.9 (ECX) . Felt at El Cajon and Escondido, California. Felt from San Diego to the Imperial Valley, California. Also felt at La Rumorosa, Baja California.

07 06 42 31.8 11.781 N 94.987 E 33 N 5.0 4.6 0.7 97 ANDAMAN ISLANDS, INDIA. Mw 5.3 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 06:42:31.9; Lat 12.08 N; Lon 94.60 E; Dep 47.1; Half- duration 1.0 sec,- Principal axes (scale 10**17 Nm) : (T) Val=1.10, Plg=20, Azm=128; (N) Val=-0.25, Plg=47, Azm=241; (P) Val=-0.85, Plg=36, Azm=22; Best double couple: Mo=9.8*10**16 Nm; NP1: Strike=171, Dip=43, Slip=-166; NP2: Strike=71, Dip=80, Slip=-42.

07 06 54 53.2& 32.466 S 71.559 W 44 12 NEAR COAST OF CENTRAL CHILE. <GUC>.07 07 25 06.5& 12.413 N 88.165 W 35 5 OFF COAST OF CENTRAL AMERICA. <CASC>. MD 4.1 (CASC). 07 07 45 54.6? 22.05 S 173.56 E 33 N 4.2 1.3 13 LOYALTY ISLANDS REGION07 08 37 27.6* 55.854 N 110.156 E 10 G 4.1 1.2 13 LAKE BAYKAL REGION, RUSSIA. Felt (II) at Verkhnyaya Zaimka. 07 08 55 43.1* 34.093 N 31.642 E 33 N 0.7 18 CYPRUS REGION. ML 2.5 (CSS) . 07 09 30 31.2? 3.63 S 144.60 E 33N3.9 1.3 7 NEAR N COAST OF NEW GUINEA, PNG. 07 09 56 32. 5& 44.300 N 7.600 E 2 6 NORTHERN ITALY. <LDG>. ML 2.1 (LOG). 07 10 00 46.9& 44.300 N 7.600 E 2 7 NORTHERN ITALY. <LDG>. ML 2.2 (LOG). 07 10 04 11.96 32.772 S 71.041 W 61 13 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.0 (GUC). 07 10 26 51.7* 55.686 N 110.268 E 10 G 3.9 1.2 8 LAKE BAYKAL REGION, RUSSIA. Felt (III) at .Verkhnyaya Zaimka.

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NORTHERN ITALY. CENTRAL ALASKA. <AEIC>. CENTRAL ALASKA. <AEIC>. CENTRAL ALASKA.

2.8 3.0 3.2

(PMR). (PMR). (PMR).

(GS) . Me 5.6 (GS) .

AEGEAN SEA. <ISK>. MD 3.3 (ISK), 3.1 (ATH). AEGEAN SEA. <ISK>. MD 2.9 (ISK). FIJI ISLANDS REGION OFF COAST OF OREGON NEAR COAST OF VENEZUELA. TRINIDAD. <TRN>. TONGA ISLANDS FRANCE. <LDG>. LOYALTY ISLANDS NORTH OF SEVERNAYA ZEMLYA SOOTH OF FIJI ISLANDS NORTH OF SEVERNAYA ZEMLYA NORTHERN CALIFORNIA. <GM-P>. FIJI ISLANDS REGION TURKEY. <ISK>. MD 3.2 (ISK), GERMANY. <STR>. ML 2.3 (STR) TURKEY. <ISK>. MD 3.0 (ISK). CYPRUS REGION. <CSS>. ML 3.0 (CSS). PYRENEES. <LDG>. ML 2.0 (LDG), 2.0 (STR). CYPRUS REGION. <CSS>. ML 2.5 (CSS). TURKEY. <ISK>. MD 3.5 (ISK). BANDA SEAOFF COAST OF OREGONCHILE-ARGENTINA BORDER REGION. <GUC>. MD 3 .2 (GUC) . NORTHERN TERRITORY, AUSTRALIA CHILE-ARGENTINA BORDER REGION. <GUC>. TURKEY. <ISK>. MD 2.8 (ISK). SOUTHEAST INDIAN RIDGE. Mw 5.6 (HRV). Centroid, Moment Tensor (HRV): Centroid origin time 08:16:46.1; Lat 41.53 S; Lon 84.57 E; Dep 15.0 Bdy; Half- duration 1.5 sec; Principal axes (scale 10**17 Nm) : (T) Val=2.77, Plg=64, Azm=236; (N) Val=-0.31, Plg=21, Azm=19; (P) Val=-2.47, Plg=14, Azm=115; Best double couple: Mo=2.6*10**17 Nm; NP1: Strik6=232, Dip=36, Slip=128; NP2: Strike=8, Dip=62, Slip=66.

VANUATU ISLANDS NEGROS, PHILIPPINE ISLANDS TURKEY. <ISK>. MD 2.8 (ISK). NEAR SOUTH COAST OF FRANCE MARIANA ISLANDS

<LDG>. ML 2.2 (LDG).ML 2.5 (AEIC), ML 2.9 (AEIC),

<AEIC>. ML 2.9 (AEIC),SOUTH OF FIJI ISLANDS. Mw 6.2 (HRV), 6.1 Broadband Source Parameters (GS): Dep 60S; NP1: Strike=205, Dip=83, Slip=50; NP2: Strike=107, Dip=41, Slip=169; Radiated energy 5.7*10**12 Nm.

Moment Tensor (GS): Dep 615; Principal axes (scale 10**18 Nm) : (T) Val=1.52, Plg=28, Azm=79; (N) Val=0.05, Plg=49, Azm=205; (P) Val=-1.58, Plg=28, Azm=333; Best double couple: Mo=1.6*10**18 Nm; NPl: Strike=116, Dip=49, Slip=-180; NP2: Strike=26, Dip=90, Slip=-41.

Centroid, Moment Tensor (HRV): Centroid origin time 12:16:07.6; Lat 26.37 S; Lon 178.28 E; Dep 635.6; Half- duration 3.3 sec; Principal axes (scale 10**18 Nm): (T) Val=1.88, Plg=31, Azm=75; (N) Val=0.39, Plg=50, Azm=209; (P) Val=-2.27, Plg=23, Azm=330; Best double couple: Mo=2.1*10**18 Nm; NPl: Strike=110, Dip=50, Slip=174; NP2: Strike=204, Dip=85, Slip=40. TAJIKISTAN-XINJIANG BORDER REG. SOUTHERN SUMATERA, INDONESIA CHILE-ARGENTINA BORDER REGION. CHILE-ARGENTINA BORDER REGION. SOUTH OF FIJI ISLANDSAEGEAN SEA. MD 3.1 (ISK), 2.9 (ATH). TURKEY. <ISK>. MD 2.7 (ISK). DODECANESE ISLANDS. <ATH>. MD 3.5 (ATH). NEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.9 (GUC). SPAIN. <MDD>. mbLg 2.4 (MOD). EASTERN NEW GUINEA REG., P.N.G. MID-INDIAN RIDGE MARIANA ISLANDSTRINIDAD. <TRN>. MD 2.8 (TRN). S. CHILE-ARGENTINA BORDER REGION RYUKYU ISLANDSOFF E. COAST OF N. ISLAND, N.Z. SOUTHERN BOLIVIAAEGEAN SEA. <ISK>. MD 3.2 (ISK), SOUTHERN ALASKA. <AEIC>. ML 3 .0 REVILLA GIGEDO ISLANDS REGION ROMANIASALTA PROVINCE, ARGENTINA FLORES SEA SOUTHERN BOLIVIA SOUTHWEST INDIAN RIDGE CHILE-ARGENTINA BORDER REGION. OFF COAST OF CENTRAL CHILE CENTRAL ALASKAEASTERN NEW GUINEA REG., P.N.G. LUZON, PHILIPPINE ISLANDS TURKEY. <ISK>. MD 2.8 (ISK). MENDOZA PROVINCE, ARGENTINA. <GUC>.

<GUC>. <GUC>.

MD 3.4 (GUC)

2.9 (ATH). (AEIC), 3.1 (PMR)

<GUC>.

APR 1999 PAGE 10

10 00 04 30.8& 44.846 N 6.690 E 7 38 FRANCE. <GEN>. ML 2.8 (GEN), 2.6 (LOG), 2.4 (STR).10 00 18 28.7& 34.380 N 22.940 E 5 17 CENTRAL MEDITERRANEAN SEA. <ATH>. ML 4.1 (ATH) .10 00 33 07.0* 29.304 N 142.271 E 33 N 4.4 1.2 23 SOUTH OF HONSHU, JAPAN10 01 12 50.7& 31.570 S 70.002 W 161 11 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.1 (GUC).10 01 49 48.2 0.482 N 124.504 E 113 * 4.8 1.0 24 MINAHASSA PENINSULA, SULAWESI10 02 32 13.5& 43.084 N 18.036 E 24 16 NORTHWESTERN BALKAN REGION. <PDG>. MD 2.8 (PDG).10 03 46 26.5& 42.055 N 20.593 E 11 12 NORTHWESTERN BALKAN REGION. <PDG>. MD 2.2 (PDG).10 04 17 11.3& 42.192 N 20.977 E 4 12 NORTHWESTERN BALKAN REGION. <PDG>. MD 2.4 (PDG).10 04 20 45.0& 32.210 S 71.007 W 86 12 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.0 (GUC).10 04 40 36.9* 85.018 N 11.495 E 10 G 3.9 0.9 8 NORTH OF SVALBARD10 04 47 05.8& 32.623 S 70.563 W 90 11 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.6 (GUC).10 05 08 35.6* 85.595 N 81.169 E 10 G 4.2 1.4 18 NORTH OF SEVERNAYA ZEMLYA10 06 12 11.1* 9.225 S 112.138 E 33 N 4.0 1.3 16 SOUTH OF JAWA, INDONESIA10 06 36 37.2* 6.554 S 147.269 E 33 N 3.9 1.3 9 EASTERN NEW GUINEA REG., P.N.G.10 06 53 47.5* 14.313 S 166.777 E 326 * .4.2 1.0 39 VANUATU ISLANDS10 07 45 26.6& 18.030 N 68.520 W 108 6 MONA PASSAGE. <MPR>. MD 3.1 (MPR).10 07 50 36.2 5.550 S 145.383 E 33 N 4.5 0.8 47 EASTERN NEW GUINEA REG., P.N.G.10 07 52 22.3 24.042 N 121.827 E 10 G 4.8 1.0 32 TAIWAN. Felt (IV JMA) in the epicentral area, (III JMA) at

Hua-lien and (I JMA) at I-lan.10 09 07 29.9* 17.991 S 178.923 W 571 ? 4.4 1.0 26 FIJI ISLANDS REGION10 10 04 51.0 1.883 S 124.520 E 36 * 4.8 1.0 31 SOUTHERN MOLUCCA SEA10 11 07 59.1* 62.703 S 144.628 E 10 G 4.2 0.6 11 SOUTH OF AUSTRALIA10 11 37 17.0& 40.990 N 24.000 E 5 5 AEGEAN SEA. <ATH>. MD 2.9 (ATH).10 12 07 53.3& 36.640 N 7.100 W 16 15 STRAIT OF GIBRALTAR. <MDD>. rabLg 2.3 (MDD) .10 13 07 57.8* 13.225 N 120.348 E 33 N 4.4 0.3 8 MINDORO, PHILIPPINE ISLANDS10 13 16 49.34 62.360 N 151.470 W 83 3.5 110 CENTRAL ALASKA. <AEIC>.10 13 31 34.0* 18.406 S 69.336 W 139 * 4.1 0.9 24 NORTHERN CHILE. Felt (II) at Arica.10 14 02 32.0 43.851 N 111.025 W 5 G 0.8 39 EASTERN IDAHO. ML 3.5 (GS), 3.8 (BUT). Felt at Driggs. Also

felt at Moose, Wyoming.10 14 44 32.0& 36.810 N 4.140 W 28 15 STRAIT OF GIBRALTAR. <MDD>. mbLg 2.2 (MDD).10 14 49 26.3* 18.520 N 145.410 E 500 ? 3.8 1.1 17 MARIANA ISLANDS10 15 16 28.6 42.071 N 144.813 E 33 N 4.6 4.1 0.9 47 HOKKAIDO, JAPAN REGION. Felt (I JMA) in the Kushiro area.10 15 33 25.4& 32.425 S 71.730 W 26 12 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.8 (GUC).10 15 55 24.4 28.691 S 71.218 W 58 * 4.4 1.1 57 NEAR COAST OF CENTRAL CHILE10 16 19 42.7* 5.564 S 152.949 E 33 N 4.1 1.2 14 NEW BRITAIN REGION, P.N.G.10 16 39 34.8& 44.451 N 7.328 E 8 7 NORTHERN ITALY. <GEN>. ML 1.9 (GEN).10 16 51 13.1& 38.960 S 174.900 E 218 12 NORTH ISLAND, NEW ZEALAND. <WEL>.10 16 51 28.2 31.583 S 69.324 W 113 * 0.8 17 SAN JUAN PROVINCE, ARGENTINA. MD 3.7 (GUC).10 16 59 06.5* 42.132 N 70.220 E 33 N 3.8 0.7 13 CENTRAL KAZAKHSTAN10 17 51 58.2 42.175 S 84.421 E 10 G 4.8 0.8 24 SOUTHEAST INDIAN RIDGE10 18 06 26.5& 44.411 N 6.978 E 6 23 FRANCE. <GEN>. ML 2.1 (GEN), 1.9 (LOG), 1.8 (STR).10 18 07 00.4? 21.01 S 178.29 W 496 ? 4.1 0.9 30 FIJI ISLANDS REGION10 18 39 17.5* 12.745 N 57.436 E 10 G 4.7 0.9 17 ARABIAN SEA10 18 43 08.5& 35.930 N 21.880 E 5 8 CENTRAL MEDITERRANEAN SEA. <ATH>. ML 3.7 (ATH).10 19 00 27.3* 48.585 N 155.421 E 33 N 3.5 1.4 8 KURIL ISLANDS10 19 17 14.0* 6.733 S 147.509 E 33 N 4.2 0.9 10 EASTERN NEW GUINEA REG., P.N.G.10 19 23 01.5* 13.096 N 57.480 E 10 G 4.6 0.8 19 ARABIAN SEA10 19 31 27.6* 23.794 S 179.995 E 550 G 4.5 0.9 31 SOUTH OF FIJI ISLANDS10 20 09 32.7& 44.437 N 7.320 El 6 NORTHERN ITALY. <GEN>. ML 1.6 (GEN).10 20 42 33.5* 28.217 N 87.964 E 33 N 3.9 1.3 9 XIZANG10 20 44 31.3* 15.448 S 167.667 E 159 * 4.5 1.0 38 VANUATU ISLANDS10 21 45 17.2 45.471 N 7.716 E 5 G 0.9 19 NORTHERN ITALY. ML 2.0 (LOG).10 22 01 21.9S. 35.025 N 32.277 E 25 5 CYPRUS REGION. <CSS>. ML 1.6 (CSS).10 22 27 50.5% 19.797 S 124.814 E 10 G 0.9 6 WESTERN AUSTRALIA10 22 46 01.2& 36.610 N 27.530 E 107 17 DODECANESE ISLANDS. <ATH>. MD 3.3 (ISK).10 23 20 42.44 18.060 N 66.860 W 19 10 PUERTO RICO REGION. <MPR>. MD 2.9 (MPR).10 23 57 44.4S. 34.377 N 32.149 E 25 6 CYPRUS REGION. <CSS>.11 00 05 21.8* 44.264 N 99.665 E 10 G 4.3 1.1 15 MONGOLIA11 00 05 37.84 48.200 N 122.755 W 20 45 WASHINGTON. <SEA-P>. MD 2.6 (SEA). ML 2.7 (PGC) .11 01 43 08.4& 61.640 N 150.750 W 56 44 SOUTHERN ALASKA. <AEIC>. ML 2.8 (AEIC).11 01 53 47.9 11.130 N 86.451 W 68 * 4.4 1.0 49 NEAR COAST OF NICARAGUA. MD 4.6 (CASC) .11 02 07 01.8* 6.060 S 145.881 E 184 ? 4.2 1.3 18 NEW GUINEA, PAPUA NEW GUINEA11 02 51 39.4& 32.033 S 71.439 W 36 10 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.6 (GUC).11 03 35 35.4* 42.089 S 84.467 E 10 G 4.2 0.7 10 SOUTHEAST INDIAN RIDGE11 03 38 30.6* 1.812 N 126.102 E 117 ? 4.2 0.7 11 NORTHERN MOLUCCA SEA11 03 48 19.9 54.012 N 158.834 E 127 * 4.3 0.8 17 KAMCHATKA11 03 58 11.2S. 34.258 N 32.089 E 25 9 CYPRUS REGION. <CSS>. ML 2.8 (CSS).11 04 35 36.2 3.133 N 126.689 E 33 N 5.0 1.2 39 TALAUD ISLANDS. INDONESIA11 04 47 05.94 60.630 N 148.910 W 37 43 KENAI PENINSULA, ALASKA. <AEIC>. ML 2.7 (AEIC).11 05 40 15.34 34.028 S 70.140 W 6 10 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.5 (GUC).11 05 51 39.9& 53.600 N 164.550 W 9 3.1 18 UNIMAK ISLAND REGION. <AEIC>. ML 3.5 (AEIC).11 06 52 56.5 28.386 N 57.175 E 61 ? 4.5 0.9 47 SOUTHERN IRAN ' "11 07 14 46.4 35.753 N 24.463 E 104 0.7 17 CRETE11 07 17 20.3* 12.181 N 87.015 W 33 N 3.8 0.7 15 NEAR COAST OF NICARAGUA11 07 17 28.7S. 42.800 N 1.900 W 2 22 PYRENEES. <LDG>. ML 2.7 (STR), 2.6 (LDG) . mbLg 2.5 (MDD).11 07 31 19.6& 36.817 N 121.533 W 6 13 CENTRAL CALIFORNIA. <GM-P>. MD 3.0 (GM) . ML 3.0 (BRK) .11 07 41 34.6 25.674 N 129.210 E 33 N 3.4 0.9 13 SOUTHEAST OF RYUKYU ISLANDS11 07 48 30.8S. 36.691 N 122.026 W 8 9 CENTRAL CALIFORNIA. <GM-P>. MD 2.7 (GM). Felt at Monterey.11 08 36 44.6? 1.90 S 124.54 E 33 N 4.3 1.5 14 SOUTHERN MOLUCCA SEA11 09 09 19.5& 34.352 N 118.580 W 2 34 SOUTHERN CALIFORNIA. <PAS-P>. ML 3.6 (PAS). Felt thrc-ghout

the San Fernando Valley and as far south as West Hollywood.11 09 28 17.4& 39.135 N 25.682 E 13 5 AEGEAN SEA. <ISK>. MD 3.1 (ISK).11 09 49 22.3 40.038 N 15.993 E 10 G 1.1 45 SOUTHERN ITALY. MD 3.5 (ROM), 3.4 (PDG).11 11 52 45.9 85.568 N 86.104 E 10 G 4.64.3 1.1 50 NORTH OF SEVERNAYA ZEMLYA11 11 53 15.2& 34.494 N 32.028 E 25 6 CYPRUS REGION. <CSS>. ML 2.4 (CSS).11 12 04 51.8& 32.826 S 72.883 W 27 10 OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.6 (GUC).11 13 11 57.5* 20.663 S 68.368 E 10 G 4.3 1.3 14 KID-INDIAN -RIDGE11 13 12 31.0 85.571 N 84.473 E 10 G 4.1 1.0 18 NORTH OF SEVERNAYA ZEMLYA11 14 09 03.1* 14.079 S 67.846 W 33N4.0 1.2 9 CENTRAL BOLIVIA11 !5 "8 38.Ot 44.413 N 7.357 E 8 22 NORTHERN ITALY. <GEN>. ML 2.4 (GEN), 2.1 (LDG).11 '5 i: 36.7* 3.319 S 138.811 E 33 N 4.2 1:0 9 IRIAN JAYA, INDONESIA11 15 23 38.6 33.674 N 137.029 E 363 4.4 0.9 71 NEAR S. COAST OF HONSHU, JAPAN. Felt (I JMA) in parts of

Fukushima, Ibaraki and Tochigi Prefectures.

APR 1999

1111

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9 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.3 (GUC). 5.6 5.7 1.0 121 NEW BRITAIN REGION, P.N.G. Mw 6.0 (GS) , 6.0 (HRV). Me 5.5

(GS) . Broadbar^i Source Parameters (GS): Dep 45; NP1: Strike=135,Dip=5C, Slip=105; NP2: Strike=292, Dip=42, Slip=73;Radiacsd energy 4.1*10**12 Nm.

Moment tensor (GS) -. Dep 43; Principal axes (scale 10**18Nm): f?) Val=1.42, Plg=75, Azm=16; (N) Val=-0.46, Plg=10,Azm=14S; (P) Val=-0.96, Plg=ll, Azm=240; Best doublecouple: Mo=1.2*lC'*18 Nm; NP1: Strike=343, Dip=35,Slip=L38; NP2: Strike=141, Dip=57, Slip=78.

Centroid, Moment Tensor (HRV): Centroid origin time16:50:45.1; Lat 6.31 S; Lon 148.73 E; Dep 45.4; Half- duration 2.6 sec; Principal axes (scale 10**18 Nm) : (T)Val=1.21, Plg=76, Azm=351; (N) Val=0.18, Plg=0, Azm=83;Val=-1.38, Plg=14. Azm=173; Best double couple:Mo=1.3*10**18 Nm; NP1: Strike=263, Dip=31, Slip=91; NP2:Strike=82, Dip=59, Slip=90. SOUTHERN CALIFORNIA. <PAS-P>. ML 3. NEAR CCAST OF CENTRAL CHILE. <GUC>. NORTHERN ALASKA. ML, 3.2 (PMR). STRAIT OF GIBRALTAR. <MDD>. MARIANA ISLANDSCENTRAL ALASKA. <AEIC>. ML 2.5 (AEIC). LAKE BAYKAL REGION, RUSSIA TAJIKISTAN-XINJIAN3 BORDER REG. TURKEY. <ISK>. MD 2.9 (ISK). TURKEY. <ISK>. MD 3.9 (ISK).GREECE-BULGARIA BORDER REGION. <ATH>. MD 3.3 (ATH). OFF EAST COAST OF HONSHU, JAPANNORTHWESTERN BALKAN REGION. ML 2.8 (VIE), 2.3 (LJU) SPAIN. <MDD>. mbLg 1.7 (MOD). FRANCE. <LDG>. ML 2.2 (LOG), 2.0 NORTHWESTERN BALKAN REGION. ML 2. VOLCANO ISLANDS RSGION OFF EAST COAST OF HONSHU, JAPAN FIJI ISIANDS REGICN NEAR CCAST OF NORTHERN CHILE. Felt (V) at Mejillones; (III)at Calama, Maria Elena and Tocopilla; (II) at Antofagasta.

WESTERN HONSHU, JAPAN NORTHERN MID-ATLANTIC RIDGE MARIANA ISLANDS REGION TALAUD ISLANDS, INTONESIAOFF COAST OF CENTRAL CHILE. <GUC>. MD 3.5 (GUC). SICILY. ML 3.3 (RCM). BANDA SEA TURKEYPHILIPPINE ISLANDS REGION CHILE-ARGENTINA BORDER REGION. SOUTH Or MARIANA ISLANDS CHILE-BOLIVIA SORTER REGION TURKEY. <ISK>. MD 2.7 (ISK). TURKEY. <ISK>. MD 2.7 (ISK). EASTERN SEA OF JArAN MARIANA ISLANDS REGION TURKEY. <ISK>. MD 2.6 (ISK). MARIANA ISLANDS REGION LOYALTY ISLANDS. Mw 5.9 (HRV). Centroid, Moment Tensor (HRV):09:41:20.6; Lat 20.14 S; Lon 168.45 E; Dep 20.0; Half- duration 2.3 sec; Principal axes (scale 10**17 Nm): (T) Val=8.Ll, Plg=70, Azm=69; (N) Val=0.93, Plg=3, Azm=168; (P) Val=-S.04, Plg=2I, Azm=259; Best double couple: Ko=8.£*10**17 N=x- NP1: Strike=355, Dip=25, Slip=97; NP2: Strike=167, Dip=£5, Slip=86.

Scalar Moment (PPT) : Mo=1.4*10**18 Nm.TURKEY. <ISK>. MD 2.7 (ISK). NORTHERN MOLUCCA SEATURKEY. <ISK>. MD 2.6 (ISK).MYANMA?.CENTRAL, ALASKA. Ml. 2.3 (PMR).SOUTH C? FIJI ISLANDSXIZANG-INDIA SORTER REGIONCENTRAL CHILE. <GCC>. MD 2.5 (GUC).MARIANA ISLANDS -EGIONTURKEY. <ISK>. MT 3.1 (ISK).SOUTH L? KERMADEC ISLANDSSOUTHERN GREECE. <ATH>. MD 3.3 (ATH).TURKEY. <ISK>. MT 2.8 (ISK).C-REECI. ML 4.1 (?.IX) , 4.0 (ATH), 3.9 (PDG).LOYALTY ISLANDS ?-Z'0-IONSOUTHERN GREECE. <ATH> . MD 3 .3 (ATH).SOUTHERN SUMATERA, INDONESIASOLOMON ISLANDSFOX ISLANDS, ALEUTIAN ISLANDSLEEWART ISLANDS. 1CT 2 .5 (PDF).NORWEGIAN SEAGREENLAND SEAKODIA?. ISLAND RiC-IDN. <AEIC>. ML 3 .0 (AEIC).SEA C~ DKH07SKSANTA TRTJ2 I SLANTSMINAHASSA PENINSVLA, SULAWESICHILE-ARGENTINA BORDER REGION. <GUC>.

<GUC>. MD 2.6 (GUC).

Centroid origin time

APR 1999 PAGE 12

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.811 N

.437 N

.576 N

.240 N

.700 N

.661 N

.669 N

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.154 S

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.643 E

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NEAR COAST OF CHIAPAS, MEXICO. MD 4.9 (CASC).SOUTHERN PERUNORTHERN COLOMBIAPYRENEES. <LDG>. ML 2.5 (LDG), 2.3 (STR).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.6 (GUC).TURKEY. <ISK>. MD 2.9 (ISK) .NORTHEAST OF TAIWANGREENLAND SEA. Mw 5.1 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time02:09:25.7; Lat 73.21 N Fix; Lon 6.65 E Fix; Dep 15.0 Fix;Half-duration 1.0 sec; Principal axes (scale 10**16 Nm) :(T) Val=3.79, Plg=25, Azm=291; (N) Val=1.90, Plg=26,Azm=189; (P) Val=-5.69, Plg=53, Azm=59; Best double couple:Mo=4.7*10**16 Nm; NP1: Strike=63, Dip=31, Slip=-32; NP2:Strike=181, Dip=74, Slip=-117.

GREENLAND SEA GREENLAND SEA POLAND. ML 3.0 (VIE).CHILE-ARGENTINA BORDER REGION. <GUC>. NEW BRITAIN REGION, P.N.G. TAIWAN REGIONLEEWARD ISLANDS. MD 3.0 (TRN), 2.6 (FDF). MENDOZA PROVINCE, ARGENTINA. MD 3.4 (GUC). WEST OF GIBRALTAR. mbLg 3.6 (MOD). NORTHWESTERN BALKAN REGION. ML 2.9 (VIE), 2.4 (LJU). Felt(IV) at Ribce, Slovenia.

UNIMAK ISLAND REGION. <AEIO. ML 3.8 (ABIC) . UNIMAK ISLAND REGION. <AEIC>. ML 4.4 (ABIC), 4.4 (PMR). NEW BRITAIN REGION, P.N.G. GUATEMALA NORWEGIAN SEASPAIN. <MDD>. mbLg 3.0 (MOD). CHIAPAS, MEXICO TURKEY. MD 4.4 (ISK).FIJI ISLANDS REGION. Mw 6.8 (GS), 6.8 (HRV). Me 6.8 (GS). Broadband Source Parameters (GS): Dep 170; NP1: Strike=20,Dip»83, Slip=-105; NP2: Strike=266, Dip=17, Slip=-25;Radiated energy 4.1*10**14 Nm.

Moment Tensor (GS): Dep 159; Principal axes (scale 10**19Nm): (T) Val*2.07, Plg=41, Azm=llO; (N) Val=-0.02, Plg=3,Azm=18; (P) Val=-2.06, Plg=49, Azm=284; Best double couple:Mo=2.1*10**19 Nm; NP1: Strike=233, Dip=5, Slip=-54; NP2:Strike=17, Dip=86, Slip=-93.

Centroid, Moment Tensor (HRV): Centroid origin time 10:38:54.4; Lat 21.54 S; Lon 175.89 W; Dep 172.8; Half- duration 6.3 sec; Principal axes (scale 10**19 Nm): (T)Val=1.89, Plg=40, Azm=119; (N) Val=0.00, Plg=14, Azm=17; (P) Val=-1.89, Plg=47, Azm=271; Best double couple:Mo=1.9*10**l9 Nm; NP1: Strike=272, Dip=15, Slip=-14; NP2: Strike=16, Dip=86, Slip=-104. Scalar Moment (PPT): Mo=4.0*10**19 Nm. TURKEY. <ISK>. MD 2.6 (ISK). FIJI ISLANDS REGIONUNIMAK ISLAND REGION. <AEIC>. ML 3.8 (ABIC). NEW BRITAIN REGION, P.N.G.FIJI ISLANDS REGIONLOYALTY ISLANDSNORTH OF FRANZ JOSEF LANDFIJI ISLANDS REGIONSOUTH OF ALASKA NORTH OF SEVERNAYA ZEMLYA NORTH OF SEVERNAYA ZEMLYA AFGHANISTAN-TAJIKISTAN BORD REG.SPAIN. <MDD>. mbLg 2.7 (MOD).PYRENEES. <LDG>. ML 2.5 (LDG), 2.3 (STR).NORTH OF SEVERNAYA ZEMLYASOUTHERN CALIFORNIA. <PAS-P>. ML 3.4 (PAS). Felt at Costa Mesa, Fountain Valley, Huntington Beach, Irvine, Long Beach, Santa Ana and Seal Beach.EAST OF LAKE BAYKAL, RUSSIACHILE-ARGENTINA BORDER REGION. <GUC>.SOUTH OF SUMBAWA, INDONESIANEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.5 (GUC).UNIMAK ISLAND REGION. Mw 5.1 (HRV). ML 4.8 (PMR).Centroid, Moment Tensor (HRV): Centroid origin time 20:04:18.2; Lat 53.82 N; Lon 162.84 W; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm) : (T) Val=4.93, Plg=68, Azm=341; (N) Val=-0.37, Plg=10, Azm=225; (P) Val=-4.56, Plg=19, Azm=131; Best double couple: MO=4.7*10**16 Nm; NP1: Strike=204, Dip=27, Slip=67; NP2: Strike=49, Dip=65, Slip=101.

STRAIT OF GIBRALTAR. <MDD>. mbLg 2.2 (MOD).NEAR COAST OF CENTRAL CHILEMOZAMBIQUE CHANNELCHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.1 (GUC).EAST OF KURIL ISLANDSCENTRAL ALASKA. <AEIC>.OFF COAST OF OREGONSPAIN. mbLg 3.0 (MOD). Felt (IV) at Cantoria, Fines, Olula del Rio and Partaloa; (III) at Albox.OFF EAST COAST OF HONSHU, JAPANPOLAND. ML 3.6 (GRF), 2.4 (VIE).NEAR COAST OF CENTRAL CHILS. MD 4.0 (GUC).

APR 1999

13131313131313131414141414141414141414

1414

21 4423 0523 1423 2623 2823 3923 4223 4400 3100 4800 4801 2602 4003 3404 2704 3004 3604 4405 19

05 2906 00

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22. 7& 3246. 9 0

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.705 S

.659 S

.510 N

.983 N

.433 N

.02 N

.194 N

.490 N

.949 S

.459 N

.178 S

.613 N

.617 S

.600 N

.910 N

.030 N

.567 N

.859 S

.685 N

271717120116894715

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.378 E

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.00 S

.18 S

.792 N

.099 S

.252 S

.667 N

.766 N

.059 N

.829 N

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STRAIT OF GIBRALTAR. <MDD>. mbLg 1.9 (MOD). AFGHANISTAN-TAJIKISTAN BORD REG.NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.2 (GUC) .NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.3 (GUC) .GREECE-ALBANIA BORDER REGION. <ATH>. MD 3 .1 (ATH).SOUTHERN CALIFORNIA. <PAS-P>. ML 3.4 (PAS).XIZANGEASTERN CAUCASUSPOLAND. ML 2.9 (VIE).OFF COAST OF NORTHERN CALIFORNIANORTHERN CHILEMARIANA ISLANDS REGIONSOUTH SANDWICH ISLANDS REGIONWINDWARD ISLANDS. MD 3.4 (TRN), 3.4 (FDF).NEW BRITAIN REGION, P.N.G.FRANCE. <LDG>. ML 1.9 (LOG).STRAIT OF GIBRALTAR. <MDD>. mbLg 2.0 (MDD).MARIANA ISLANDSSOUTHERN GREECE. MD 4.0 (PDG), 3.9 (ATH). Felt on Zakinthos. Also felt in Achaea and Ilia.CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.1 (GUC).NORTHERN MOLUCCA SEA. Mw 5.2 (HRV) . Felt (IV) on Ternate, Indonesia.

Centreid, Moment Tensor (HRV): Centroid origin time 06:00:44.6; Lat 0.50 N; Lon 126.68 E; Dep 106.8; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm): (T) Val=7.74, Plg=35, Azm=310; (N) Val=0.32, Plg=10, Azm=213; (P) Val=-8.06, Plg=53, Azm=109; Best double couple: Mo=7.9*10**16 Nm; NP1: Strike=80, Dip=14, Slip=-42; NP2: Strike=211, Dip=80, Slip=-101.

CHILE-ARGENTINA BORDER REGION. <GUC>.SOUTHERN ARGENTINAMYANMAR-INDIA BORDER REGIONNORTHERN ITALY. ML 2.3 (VIE), 2.0 (LJU) .GREECE. ML 3.5 (ATH).MARIANA ISLANDSGREECE. <ATH>. MD 2.9 (ATH).NORTHERN COLOMBIA. Felt in northern Colombia.IONIAN SEA. <ATH>. MD 3.2 (ATH).SUMBAWA REGION, INDONESIAEASTERN NEW GUINEA REG., P.N.G.LOYALTY ISLANDS REGIONTONGA ISLANDSPUERTO RICO REGION. <MPR>. MD 3.4 (MPR).NORTHERN ITALY. <LDG>. ML 2.2 (LOG).LEEWARD ISLANDS. <FDF>. MD 2.0 (FDF).TONGA ISLANDSTURKEY. <ISK>. MD 3.0 (ISK).TURKEY. <ISK>. MD 2.6 (ISK).SOUTH OF AUSTRALIATURKEY. MD 3.8 (ATH), 3.3 (ISK).MARIANA ISLANDS REGIONUNIMAK ISLAND REGIONNORTHWESTERN BALKAN REGION. ML 2.2 (VIE).CHILE-BOLIVIA BORDER REGIONGULF OF ALASKA. <AEIC>. ML 2.5 (AEIC) .SOUTHERN GREECE. MD 4.1 (PDG).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.1 (GUC).GREECE. <ATH>. MD 2.9 (ATH).SVALBARD REGIONKYRGYZSTANNORTHERN XINJIANG, CHINANORTH OF ASCENSION ISLANDXIZANG-INDIA BORDER REGION. Felt at Delhi and throughout northern Uttar Pradesh, India.CENTRAL ALASKA. ML 3.1 (PMR).NEAR COAST OF CENTRAL CHILE. <GUC>.POLANDFOX ISLANDS, ALEUTIAN ISLANDSNORTH OF SEVERNAYA ZEMLYATIMOR REGION, INDONESIATURKEY. <ISK>. MD 3.0 (ISK).NEW BRITAIN REGION, P.N.G.MID-INDIAN RIDGELUZON, PHILIPPINE ISLANDSNEAR COAST OF CENTRAL CHILE. <GUC>.CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.CENTRAL CALIFORNIA. <GM-P>. MD 2.9 (GM) .ROMANIAWINDWARD ISLANDS. <TRN>. MD 2.9 (TRN).SOUTH OF HONSHU, JAPANCENTRAL CALIFORNIA. <GM-P>. MD 3.3NEAR COAST OF CENTRAL CHILE. KURIL ISLANDSCENTRAL CALIFORNIA. <GM-P>. CENTRAL CALIFORNIA. <GM-P>.3.8 (BRK).

Moment Tensor (BRK): Dep 6; Principal axes (scale 10**14 Nm) : (T) Val=6.50, Plg=4, Azm=S9; (N) Val=0.00, Plg=83, Azm=322; (P) Val=-6.50, Plg=6, Azm=179; Best double couple: MO=6.5*10**14 Nm; NP1: Strike=314, Dip=89, Slip=-173; NP2: StriJce=224, Dip=83, Slip=-l.

5 NORWEGIAN SEA

MD 3.7 (GUC).

MD 3.7 (GUC). 5 (GUC).

(GM). ML 3.2 (BRK). <GUC>. MD 3.2 (GUC) .

MD 3.1 Mw 3.8

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APR 1999 PAGE 14

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SOUTHERN CALIFORNIA. <PAS-P>. ML 3.1 (PAS).VANUATU ISLANDSSOUTHERN CALIFORNIA. <PAS-P>. ML 3.1 (PAS).OFF COAST OF CENTRAL CHILE. <GUC>. MD 3 .8 (GUC) .TONGA ISLANDSNEAR COAST OF CENTRAL CHILE. <GaC>. MD 3 .5 (GUC).NORTHERN TERRITORY, AUSTRALIANORTHERN CALIFORNIA. <GM-P>. MD 3.0 (GM). ML 3.1 (BRK).GANSU, CHINA. ML 4.5 (BJI).CENTRAL ALASKA. ML 3.1 (PMR).NORTHEASTERN INDIASOUTHERN CALIFORNIA. <PAS-P>. ML 2.8 (PAS).NEAR COAST OF JALISCO, MEXICO. Felt at Manzanillo.JUJUY PROVINCE, ARGENTINANORTHWESTERN BALKAN REGION. ML 2.3 (VIE), 2.1 (LJU).IRIAN JAVA, INDONESIAFIJI ISLANDS REGIONEASTERN NEW GUINEA REG., P.N.G.SWITZERLAND. <LDG>. ML 2.3 (LDG).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3 .1 (GUC).AEGEAN SEA. <ATH>. MD 3.5 (ATH).CANARY ISLANDS REGION. <MDD>. mbLg 3.3 (MOD) . Felt (II) atAgaete. EASTERN CAUCASUS. Felt (V) at Izberbash, Karabudakhkent andKaspiysk; (IV) at Kizilyurt and Makhachkala; (II) at Nazran. SOUTH OF HONSHU, JAPAN SOUTH INDIAN OCEAN CENTRAL ALASKA. ML 3.2 (PMR). STRAIT OF GIBRALTAR. <MDD>. mbLg 2.5 (MDD). EASTERN NEW GUINEA REG., P.N.G. Mw 5.8 (HRV) . 5.7 (GS) . Moment Tensor (GS): Dep 21; Principal axes (scale 10**17Nm) : (T) Val=4.55, Plg=35, Azm=74; (N) Val=0.0l, Plg=50,Azm=289; (P) Val=-4.56, Plg=18, Azm=177; Best doublecouple: Mo=4.6*10**17 Nm; NP1: Strike=221, Dip=52, Slip=14;NP2: Strike=122, Dip=79, Slip=141.Centroid, Moment Tensor (HRV): Centroid origin time 13:54:49.0; Lat 6.76 S; Lon 146.96 E; Dep 15.0 Fix; Half- duration 1.9 sec; Principal axes (scale 10**17 Nm) : (T)Val=6.38, Plg=42, Azm=61; (N) Val=-1.65, Plg=37, Azm=289; (P) Val=-4.72, Plg=26, Azm=177; Best double couple:Mo=5.6*10**17 Nm; NP1: Strike=218, Dip=38, Slip=15; NP2:Strike=116, Dip=81, Slip=127.

NORTHERN CHILE. Felt at Camarones. NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3 .6 (GUC). RYUKYU ISLANDS RYUKYU ISLANDSEASTERN NEW GUINEA REG., P.N.G. LEEWARD ISLANDS. <FDF>. MD 3.0 (FDF). SPAIN. <MDD>. mbLg 2.1 (MDD). EL SALVADOR NORTHERN ITALY. ML 2.7 (LDG), 2.6 (FBB), 2.6 (FUR), 2.5(VIE).

KENAI PENINSULA, ALASKA. <AEIC>. NEAR COAST OF CENTRAL CHILE. <GUC>. at Constitucion, Empedrado, Villa Alegre.

VANUATU ISLANDS NEW BRITAIN REGION, P.N.G.CZECH AND SLOVAK REPUBLICS. ML 3.7 (CLL), 3.5 (VIE), 3.3 (FUR). Rockburst.

SOUTH OF FIJI ISLANDSKODIAK ISLAND REGION. <AEIC>. ML 2.9 (ABIC).SPAIN. <MDD>.HINDU RUSH REGION, AFGHANISTANLOYALTY ISLANDSCERAM SEAAUSTRIA. MD 2.2 (LJU). ML 2.2 (VIE). NEAR COAST OF CENTRAL CHILENORTHWESTERN BALKAN REGION. <SKO>. MD 3.2 (ATH), 3.0 (PDG>. Felt at Skopje.

SOUTHERN CALIFORNIA. <PAS-P>. ML 3.0 (PAS).FIJI ISLANDS REGIONGREECE. <ATH>. ML 3.3 (ATH).WESTERN CAROLINE ISLANDS. Mw 5.3 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 00:30:28.8; Lat 11.70 N; Lon 139.45 S; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**17 Nm) : (T) Val=0.92, Plg=20, Azm=241; (N) Val=0.45, Plg=56, Azm=118; (P) Val=-1.36, Plg=26, Azm=342; Best double couple: Mo=l.l*10**17 Nm; NP1: Strike=20, Dip=56, Slip=-4; NP2: Strike=113, Dip=86, Slip=-146.

GREECE-ALBANIA BORDER REGION. <ATH>. MD 2.9 (ATH).GERMANY. <FBB>. ML 2.0 (FBB).SOUTHERN BOLIVIAPOLAND. ML 2.8 (VIE).FIJI ISLANDS REGIONCALIFORNIA-NEVADA BORDER REGION. <GM-?>. MD 2.9 (GM) .NORTHWESTERN BALKAN REGION. ML 1.7 (VIE), 1.1 (LJU).ALASKA PENINSULA. <AEIC>. KL 2 . 6 (AEIC).SWITZERLAND. <LDG>. ML 2.2 (LDG).SOUTHERN PERUFRANCE. <LDG>. ML 2.2 (LDG), 2.0 (STK).NEW BRITAIN REGION, P.N.G.

MD 4.2 (GUC). Felt (III) Linares, San Javier, Talca and

APR 1999

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NEW GUINEA, PAPUA NEW GUINEA MONA PASSAGE. <MPR> . MD 2 . 9 (MPR) . EASTERN NEW GUINEA REG.. P.N.G. POLAND. ML 3.1 (VIE). MINDANAO, PHILIPPINE ISLANDSNEAR COAST OF VENEZUELA. MD 3.9 (TRN) , 3.8 (PDF). CENTRAL ALASKA. <AEIC>. SALTA PROVINCE, ARGENTINA MINDORO, PHILIPPINE ISLANDS EASTERN NEW GUINEA REG., P.N.G.SWITZERLAND. <LDG>. ML 2.7 (LOG), 2.3 (STR) , 2.1 (FBB) . S. CHILE-ARGENTINA BORDER REGION. MD 4.1 (GUC). Felt (IV) at Collipulli and Ercilla; (III) at Angol, Los Sauces and Renaico; (II) at concepcion, Lautaro, Los Angeles, Puren, Temuco and Victoria, Chile.CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2 .9 (GM) . EASTERN NEW GUINEA REG., P.N.G. Mw 5.4 (HRV) . ML 5.4 (PMG) . Centroid, Moment Tensor (HRV): Centroid origin time 10:49:01.2; Lat 9.95 S; Lon 151.53 E; Dep 15.0 Bdy; Half- duration 1.2 sec; Principal axes (scale 10**17 Nm): (T) Val=1.33, Plg=18, Azm=2; (N) Val=0.07, Plg=24, Azm=101; (P) Val=-1.40, Plg=59, Azm=239; Best double couple: M0=1.4-10**17 Nm; NP1: Strike=60, Dip=34, Slip=-136; NP2: Strike=292. Dip=67, Slip=-64.

MONA PASSAGE. <MPR>. MD 3.2 (MPR). PAKISTANCOOK STRAIT, NEW ZEALAND. <WEL>. ML 3.3 (WEL) . GREECE. <ATH>. MD 3.1 (ATH). VANUATU ISLANDS OFF COAST OF CENTRAL CHILE LAKE BAYKAL REGION, RUSSIA DODECANESE ISLANDS. MD 4.0 (ATH). TRINIDAD. <TRN>. MD 2.7 (TRN). NORTH OF SEVERNAYA ZEMLYA SOUTH OF JAWA, INDONESIA LAKE BAYKAL REGION, RUSSIA WINDWARD ISLANDS. MD 2.7 (TRN). SPAIN. <MDD>. mbLg 1.8 (MOD).KERMADEC ISLANDS, NEW ZEALAND. Mw 5.2 (HRV). Centroid, Moment Tensor (HRV): Centroid origin time 15:19:36.8; Lat 30.49 S; Lon 177.93 W; Dep 59.0; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm): (T) Val=5.90, Plg=74, Azm=296; (N) Val=1.10, Plg=3, Azm=194; (P) Val=-7.01, Plg=l6, Azm=104; Best double couple: MO=6.4*10**16 Nm; NP1: Strike=189, Dip=29, Slip=83; NP2: Strike=16, Dip=6l, Slip=94.

SOUTHERN BOLIVIASOUTHERN CALIFORNIA. <PAS-P>. ML 3.2 (PAS). NEAR COAST OF NICARAGUA PAKISTANWEST OF GIBRALTAR. mbLg 2.6 (MOD) . GUATEMALA CRETEVANUATU ISLANDS LUZON, PHILIPPINE ISLANDSNEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.1 (GUC) . SOUTH SANDWICH ISLANDS REGION MINDANAO, PHILIPPINE ISLANDS SPAIN. <MDD>. mbLg 3.1 (MOD). Felt (III) in the epicentralarea.

AFGHANISTANSTRAIT OF GIBRALTAR. <MDD>. mbLg 2.7 NORTHERN ITALY. <GEN>. ML 2.2 (GEN), TAJIKISTAN NORTHERN MOLUCCA SEA NEAR N COAST OF NEW GUINEA, PNG. CERAM SEASAN JUAN PROVINCE, ARGENTINA. MD 3.4 (GUC). COSTA RICA FIJI ISLANDS REGION CENTRAL MID-ATLANTIC RIDGEHAWAII. <HVO-P>. Mw 5.8 (GS) , 5.7 (HRV). MD 5.6 (HVO) . Some damage to homes at Pahala. Felt throughout the Island of Hawaii. Broadband Source Parameters (GS): Dep 7; NP1: Strike=35,Dip=82, Slip=105; NP2: Strike=152, Dip=17, Slip=29. Moment Tensor (GS) : Dep 4; Principal axes (scale 10**17 Nm) : (T) Val=6.23, Plg=54, Azm=285; (N) Val=0.40, Plg=13, Azm=33; (P) Val=-6.63, Plg=33, Azm=132; Best double couple: Mo=6.4*10**17 Nm; NP1: Strike=262, Dip=17, Slip=140; NP2: Strike=31, Dip=79, Slip=77.

Centroid, Moment Tensor (HRV): Centroid origin time 00:56:30.3; Lat 19.28 N; Lon 155.32 W; Dep 15.0 Bdy; Half- duration 1.7 sec; Principal axes (scale 10**17 Nm): (T) Val=3.83, Plg=52, Azm=304; (N) Val=0.21, Plg=4, Azm=40; (P) Val=-4.03, Plg=38, Azm=133; Best double couple: Mo=3.9*10**17 Nm; NP1: Strike=250, Dip=8, Slip=120; NP2: Strike=39, Dip=83, Slip=86. IONIAN SEA. <ATH>. ML 3.6 (ATH). SOUTH OF FIJI ISLANDS OFF EAST COAST OF HONSHU, JAPAN SOUTHERN ALASKA. <AEIC>. SOLOMON ISLANDS

(MOD).2.1 (LDG), 2.0 (STR).

APR 1999 PAGE 16

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LOYALTY ISLANDS LOYALTY ISLANDS IRIAN JAYA REGION, INDONESIA SOUTHERN IRAN TALAUD ISLANDS, INDONESIA SOUTH OF FIJI ISLANDS. Mw 5.5 (HRV). Centroid, Moment Tensor (HRV): Centroid origin time 05:11:48.9; Lat 26.78 S; Lon 175.88 W; Dep 15.0 Bdy; Half- duration 1.3 sec; Principal axes (scale 10«*17 Nm): (T) Val=1.65, Plg=67, Azm=308; (N) Val=0.09, Plg=S, Azm=198; (P) Val=-1.74, Plg=21, Azm=105; Best double couple: MO=1.7*10**17 Nm; NP1: Strike=180, Dip=25, Slip=71; NP2: Strike=21, Dip=66, Slip=99. EASTERN NEW GUINEA REG., P.N.G. NORTH ATLANTIC OCEAN. mbLg 2.7 NEAR COAST OF VENEZUELA. <TRN>. PYRENEES. <STR>. ML 2.3 (STR), SOUTH OF FIJI ISLANDS SOUTHERN GREECE. MD 4.2 (ATH). SULU SEASOUTH OF FIJI ISLANDS MINDORO, PHILIPPINE ISLANDS SOUTHERN XINJIANG, CHINA. Mw 5.1 (HRV). Centroid, Moment Tensor (HRV): Centroid origin time 07:20:55.2; Lat 37.61 N; Lon 75.45 E; Dep 149.6; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm): (T) Val=3.74, Plg=43, Azm=201; (N) Val=2.34, Plsr=46, Azm=6; (P) Val=-6.08, Plg=7, Azm=104; Best double couple: Mo=4.9*10**16 Nm; NP1: Strike=232, Dip=55, Slip=151; NP2: Strike=340, Dip=67, Slip=39.

WASHINGTON. <SEA-P>. MD 3.5 (SEA). Felt in the Alder area. PYRENEES. <LDG>. ML 2.2 (STR), 1.8 (LOG). SOUTHERN GREECE. Mw 5.4 (HRV). MD 4.9 (ATH). Centroid, Moment Tensor (HRV): Centroid origin time 08:17:59.8; Lat 35.60 N; Lon 21.27 E; Dep 43.7; Half- duration 1.2 sec; Principal axes (scale 10**17 Nm) : (T) Val=1.07, Plg=86, Azm=189; (N) Val=0.39, Plg=3, Azm=337; (P) Val=-1.45, Plg=2, Azm=67; Best double couple: Mo=1.3*10**17 Nm; NP1: Strike=160, Dip=43, Slip=95; NP2: Strike=334, Dip=47, Slip=86. PYRENEES. <LDG>. ML 2.4 (STR), 2.0 CENTRAL CALIFORNIA. <GM-P>. MD 2.7 EASTERN NEW GUINEA REG., P.N.G. CENTRAL MEDITERRANEAN SEA. MD 4.0 (ATH). CENTRAL MEDITERRANEAN SEA. MD 3.8 (ATH). CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.2 (GUC). CENTRAL MEDITERRANEAN SEA. ML 4.0 (ATH). POLAND. MG 2.9 (WAR). FOX ISLANDS, ALEUTIAN ISLANDSVANCOUVER ISLAND REGION. <PGC-P>. ML 4.1 (PGC). OFF E. COAST OF N. ISLAND, N.Z. <WEL>. EASTERN NEW GUINEA REG., P.N.G. ML 4.1 (PMG). FIJI ISLANDS REGIONNEAR COAST OF CENTRAL CHILE. <GUC>. MD VANCOUVER ISLAND REGION. <PGC-P>. ML 3.7 ANDREANOF ISLANDS, ALEUTIAN IS. NEAR N COAST OF NEW GUINEA, PNG.NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.6 (GUC). BANDA SEAOFF E. COAST OF N. ISLAND, N.Z. GUATEMALAOFF W COAST OF NORTHERN SUMATERA KYUSHU, JAPAN VANUATU ISLANDSPORTUGAL. <MDD>. mbLg 2.0 (MOD).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.9 (GUC). OFF E. COAST OF N. ISLAND, N.Z. VIRGIN ISLANDS. MD 4.2 (MPR).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.4 (GUC). MARIANA ISLANDS POLAND. ML 3.2 (VIE).POLAND. ML 3.6 (VIE), 3.4 (FUR), 3.2 (CLL). VANUATU ISLANDS REGION ALASKA PENINSULA. <AEIC>.CENTRAL CALIFORNIA. <GM-P>. MD 3.1 (GM) . ML 3.2 (PAS) KENAI PENINSULA, ALASKA. <AEIC>. ML 2.7 (AEIC) . FOX ISLANDS, ALEUTIAN ISLANDS EASTERN NEW GUINEA REG., P.N.G. CENTRAL MEDITERRANEAN SEA. ML 4.1 (ATH). SOUTHERN ALASKA. <AEIC>. IRIAN JAYA, INDONESIA NORTHERN MOLUCCA SEA EASTERN NEW GUINEA REG. EASTERN NEW GUINEA REG. TONGA ISLANDS SOUTHEAST INDIAN RIDGE SOUTHERN GREECE. ML 4.C SOUTHERN GREECE. MD 3.8

.7 (GUC) (PGC).

N.G.N.G. ML 4.7 (PMG) .

PYRENEES. <LDG>. mbLgCauterets, France. SVALBARD REGION FRANCE. <LDG>. ML 2.7 CERAM SEA

(ATH). (ATH). 1 (MOD) ML 3.0 (LDC-: . Felt (II) at

(STR), 2.5 (LDG).

PAGS 17 APR 1999

18 05 01 42.3* 55.675 N 110.429 E 10 G 3.4 1.3 8 LAKE BAYKAL REGION, RUSSIA18 05 11 55.Ot 43.000 X 0.600 W 2 6 PYRENEES. <LDG>. ML 2.2 (STR), 1.9 (LDG) .18 05 41 05.1* 54.199 X 163.498 E 33 N 4.2 1.0 19 OFF EAST COAST OP KAMCHATKA18 05 49 40.0* 2.457 X 80.037 W 33 N 4.4 1.2 28 SOUTH OF PANAMA18 05 54 56.5 35.918 X 21.747 E 33 N 4.2 1.4 129 CENTRAL MEDITERRANEAN SEA. ML 4.5 (ATM).18 07 09 03.7 15.359 X 45.188 W 10 G 4.8 4.2 0.9 65 NORTHERN MID-ATLANTIC RIDGE18 07 25 59.6& 36.569 X 121.159 W 3 13 CENTRAL CALIFORNIA. <GM-P>. MD 3.1 (GM) .18 07 46 48.lt 38.35C X 26.500 E 4 4 AEGEAN SEA. <ATH>. MD 3.6 (ATH) .18 08 05 09.46 41.205 X 19.804 E 11 15 ALBANIA. <PDG>. MD 2.6 (PDG) .18 08 58 35.4 2.790 S 128.667 E 33 N 4.5 0.9 21 CERAM SEA18 09 00 36.6? 7.30 S 105.91 E 33N4.3 0.9 8 JAWA, IKDONESIA18 09 08 33.3? 35.97 K 21.57 E 33 N 3.3 1.5 10 CENTRAL MEDITERRANEAN SEA. MD 3.7 (ATH).18 10 45 20.06 43.100 N 0.500 W 3 8 PYRENEES. <LDG>. ML 2.5 (LDG), 2.5 (STR).18 10 48 39.06 43.900 N 7.100 E 2 9 NEAR SOUTH COAST OF FRANCE. <LDG>. ML 2.2 (STR), 1.7 (LDG).18 10 54 11.8*' 1.767 N 127.574 E 33 N 4.4 0.7 7 HALMAHERA, INDONESIA18 11 06 50.56 20.773 N 156.036 W 17 35 HAWAII. <HVO-P>. MD 4.0 (HVO). Felt at Haiku, Hana, Kihei,

Lahaina, Makawao, Olinda and Pukalani, Maul.18 12 32 26.6* 1.630 S 77.902 W 200 G 3.9 0.9 18 ECUADOR18 12 42 03.46 38.758 X 122.713 W 2 10 NORTHERN CALIFORNIA. <GM-P>. MD 2.8 (GM) .18 12 50 04.3 39.042 N 23.136 E 10 G 1.5 22 AEGEAN SEA. ML 3.7 (ATH).18 14 21 16.1 46.053 X 14.789 E 10 G 0.3 7 NORTHWESTERN BALKAN REGION. ML 2.0 (VIE).18 14 33 14.16 32.588 X 116.165 W 9 31 CALIF.-BAJA CALIF. BORDER REGION. <PAS-P>. ML 3.5 (PAS). MD

3.4 (ECX). Felt at El Cajon, San Diego and in the Imperial Valley, California. Also felt at La Rumorosa, Baja California.

18 15 04 23.26 44.926 X 7.225 E 11 68 NORTHERN ITALY. <GEN>. ML 3.1 (GEN), 3.1 (LDG), 3.1 (STR).18 15 05 58.0 60.387 N 151.852 W 73 D 5.0 0.8 260 KENAI PENINSULA, ALASKA. Mw 5.3 (HRV) . Felt (III) at

Anchorage, Eagle River, Homer and Kenai; (II) at Palmer. Also felt at Kasilof, Nikiski, Ninilchik, Seward and Soldotna.

Centroid, Moment Tensor (HRV): Centroid origin time 15:06:00.5; Lat 60.18 N; Lon 151.45 W; Dep 81.7; Half- duration 1.0 sec; Principal axes (scale 10**16 Nra) : (T) Val=9.19, Plg=30, Azm=278; (N) Val=-0.71, Plg=57, Azm=127 ; (P) Val=-8.49, Plg=14, Azm=16; Best double couple: Mo=8.8*10**16 Nm; NP1: Strike=60, Dip=59, Slip=12; NP2: Strike=324, Dip=79, Slip=148.

18 15 22 42.66 60.250 X 151.660 W 4 44 KENAI PENINSULA, ALASKA. <AEIC>. ML 2.7 (AEIC) .18 15 36 39.46 40.955 N 121.252 W 16 7 NORTHERN CALIFORNIA. <GM-P>. MD 2.8 (GM) .18 15 47 55.4* 22.998 X 143.589 E 33 N 3.9 1.4 14 VOLCANO ISLANDS REGION18 15 53 01.06 32.587 N 116.163 W 8 35 CALIF.-BAJA CALIF. BORDER REGION. <PAS-P>. ML 4.2 (PAS). MD

3.9 (ECX). Felt in the San Diego area and in the Imperial Valley, California. Also felt at La Rumorosa, Baja California.

18 16 07 05.66 48.100 X 2.400 W 6 7 FRANCE. <LDG>. ML 2.2 (LDG).18 16 36 59.8* 37.698 N 73.212 E 33 N 1.3 7 TAJIKISTAN18 17 16 36.5 30.243 N 79.298 E 10 G 4.9 0.8 107 XIZANG-INDIA BORDER REGION18 18 44 17.2 39.017 X 140.769 E 33 N 4.74.1 0.8 76 EASTERN HONSHU, JAPAN. Felt (III JMA) in northern Miyagi and

(II JMA) in southeastern Akita and southern Iwate Prefectures. Felt (I JMA) as far as eastern Fukushiraa Prefecture.

18 19 04 23.16 38.780 X 21.570 E 5 4 GREECE. <ATH>. MD 2.9 (ATH).18 19 58 42.56 40.860 X 3.990 W 10 6 SPAIN. <MDD>. mbLg 1.9 (MOD) .18 20 17 42.56 48.100 X 9.200 E 2 7 GERMANY. <LDG>. ML 1.9 (LDG), 1.9 (STR).18 20 41 14.6 39.872 N 145.336 E 33 N 4.7 0.9 68 OFF EAST COAST OF HONSHU, JAPAN18 21 45 22.4 62.633 S 147.801 E 10G4.4 0.6 8 SOUTH OF AUSTRALIA18 22 13 46.2* 2.475 S 139.660 E 33 N 4.1 1.4 11 NEAR NORTH COAST OF IRIAN JAYA18 23 14 19.6 34.192 N 139.460 E 129 D 4.8 0.8 174 NEAR S. COAST OF HONSHU, JAPAN. Felt (I JMA) in parts of

Chiba, Kanagawa and Tochigi Prefectures. Also felt (I JMA) in the Tokyo area^and on Hachijo-jima and Miyake-jima.

18 23 23 21.9 62.739 N 149.142 W 33 N 0.6 6 CENTRAL ALASKA. ML'2.8 (PMR) .18 23 29 16.3 36.158 X 21.786 E 60 * 1.2 31 SOUTHERN GREECE. MD 4.0 (ATH).19 00 00 40.0* 31.367 N 141.341 E 64 ? 4.3 1.1 13 SOUTH OF HONSHU, JAPAN19 00 08 54.5- 45.335 X 147.280 E 186 * 4.0 1.1 33 KURIL ISLANDS19 01 18 35.6- 17.820 X 145.437 E 154 ? 4.2 1.1 22 MARIANA ISLANDS19 01 21 27.5* 6.664 X 73.092 W 187 * 4.1 0.6 25 NORTHERN COLOMBIA. Felt in northern Colombia.19 01 46 21.2* 31.105 S 70.956 W 100 G 3.6 1.4 14 CHILE-ARGENTINA BORDER REGION19 02 08 51.4* 36.126 N 70.704 E 117 ? 4.4 1.4 19 HINDU RUSH REGION, AFGHANISTAN19 02 12 10.0* 0.717 X 125.667 E 33 N 3.8 0.7 8 NORTHERN MOLUCCA SEA19 02 45 54.1 46.056 X 14.775 E 10 G 0.3 8 NORTHWESTERN BALKAN REGION. ML 2.1 (VIE), 1.4 (LJU) .19 03 17 38.2* 63.195 X 150.785 W 33 N 0.7 5 CENTRAL ALASKA. ML.3.1 (PMR).19 04 08 39.66 43.300 X 3.300 E 2 7 NEAR SOUTH COAST OF FRANCE. <LDG>. ML 2.2 (LDG).19 04 09 54.1 22.076 S 68.711 W 123 * 3.9 1.0 24 NORTHERN CHILE19 04 28 36.0% 60.988 X 167.428 E 10 G 0.9 9 EASTERN SIBERIA, RUSSIA19 04 40 10. Ot 48.300 X 9.040 E 10 17 GERMANY. <FBB>. ML 2.3 (LDG), 2.0 (STR), 1.8 (FBB) .19 05 24 03.0& 48.300 X 9.040 E 11 17 GERMANY. <FBB>. ML 2.5 (LDG), 2.0 (STR), 1.9 (FBB).19 05 37 54.3 39.054 X 23.218 E 33 N 3.9 1.2 53 AEGEAN SEA. MD 3.9 (ATH), 3.7 (PDG).19 05 42 28. S* 36.776 S 71.571 W 33 N 3.7 0.8 7 CENTRAL CHILE19 06 27 16.5 55.867 X 110.005 E 10 G 4.4 1.0 38 LAKE BAYKAL REGION, RUSSIA. Felt (V) at Kichera.15 06 29 07.3* 3.073 £ 131.149 E 33 N 4.6 1.4 11 IRIAN JAYA REGION, INDONESIA19 06 50 00.7- 3.108 S 131.079 E 33 N 4.3 1.4 11 IRIAN JAYA REGION, INDONESIA19 08 42 08.1? 35.66 X 140.55 E 78 ? .0.8 7 NEAR EAST COAST OF HONSHU, JAPAN19 09 12 47.5 50.888 X 156.423 E 118 D 5.4 0.7 364 KURIL ISLANDS. Mw 5.2 (HRV). Felt (IV) at Severo-Kurilsk.

Centroid, Moment Tensor (HRV): Centroid origin time 09:12:53.0; Lat 50.64 N; Lon 157.02 E; Dep 115.6; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm) : (T) Val=7.29, Plg=58, Azm=293; (N) Val=1.45, Plg=13, Azm=44; (P) Val=-8.74, Plg=29, Azm=141; Best double couple: Mo=8.0*10**16 Nm; NP1: Strike=263, Dip=20, Slip=131; NP2: Strike=40, Dij^75, Slip=77.

19 09 38 38." 20.416 S 168.766 E 33 N 4.8 1.1 38 LOYALTY ISLANDS19 09 57 51.7& 39.030 K 22.880 E 32 4 GREECE. <ATH>. ML 3.1 (ATH).19 10 14 35.6 20.458 S 168.810 E 33 N 5.05.2 1.1 71 LOYALTY ISLANDS. Mw 5.5 (HRV).

APR 1999 PAGE 18

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Centroid, Moment Tensor (HRV): Centroid origin time 10:14:45.2; Lat 20.46 S; Lon 168.49 E; Dep 16.1; Half- duration 1.4 sec; Principal axes (scale 10**17 Nm) : (T) Val=2.06, Plg=72, Azm=32; (N) Val=0.15, Plg=10, Azm=156; (P) Val=-2.21, Plg=14, Azm=249; Best double couple: Mo=2.1*10**17 Nm; NP1: Strike=353, Dip=32, Slip=109; NP2: Strike=150, Dip=60, Slip=78. SANTA CRUZ ISLANDS PYRENEES. <LDG>. ML 2.6 (LOG).NORTHERN ITALY. <GEN>. ML 2.2 (GEN), 2.1 (LOG), NEVADA. <REN-P>. MD 3.7 (REN). ML 4.1 (GS).

<AEIC>. <AEIC>. ALASKA.

1.9 (STR).

ALASKA PENINSULA SOUTHERN ALASKA. KENAI PENINSULA, TONGA ISLANDS PYRENEES. <LDG>. PYRENEES. <LDG>. PYRENEES. <LDG>.

<AEIC>. ML 2.6 (AEIC)

(GS). Felt at Richfield.

SOUTHERN GREECE. SOUTHERN GREECE.

ML 2.3 (STR), 1.9 (LOG). ML 2.6 (STR), 2.3 (LOG). ML 2.3 (LDG).

UTAH. <SLC-P>. ML 3.3 (SLC), 3.5 WYOMING. <USBR>. MD 2.8 (USBR). PYRENEES. <LDG>. ML 2.3 (LDG), 2.3 (STR). AUSTRIA. ML 2.5 (VIE). BANDA SEANEW IRELAND REGION, P.N.G. WINDWARD ISLANDS. <TRN>. MD 2.8 (TRN). PYRENEES. <LDG>. ML 2.3 (STR), 2.0 (LDG). LEEWARD ISLANDS. MD 2.5 (PDF). PAKISTAN

<ATH>. ML 2.8 (ATH). <ATH>. ML 2.9 (ATH).

GREECE-ALBANIA BORDER REGION. MD 3.3 (ATH), 2.6 (PDG). NORTHWESTERN BALKAN REGION. ML 1.9 (VIE). MINAHASSA PENINSULA, SULAWESI PHILIPPINE ISLANDS REGION FIJI ISLANDS REGION. Mw 5.4 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 01:46:19.6; Lat 18.86 S; Lon 178.01 W; Dep 595.6; Half- duration 1.2 sec; Principal axes (scale 10**17 Nm): (T) Val=1.05, Plg=35, Azm=130; (N) Val=0.21, Plg=19, Azm=233; (P) Val=-1.26, Plg=49, Azm=346; Best double couple: Mo=1.2*10**17 Nm; NP1: Strike=166, Dip=20, Slip=-159; NP2: Strike=56, Dip=83, Slip=-7l.

NORTHERN COLOMBIA PUERTO RICO REGION. MD 4.1 (MPR). Felt at Naguabo and onIsla Verde. Also felt on the Virgin Islands.

NORTHWESTERN CAUCASUS HALMAHERA, INDONESIA. Mw 5.4 (HRV). Centroid, Moment Tensor (HRV): Centroid origin time 05:34:19.4; Lat 1.27 N; Lon 127.40 E; Dep 117.6; Half- duration 1.4 sec; Principal axes (scale 10**17 Nm): (T) Val-1.61, Plg=35, Azm=159; (N) Val=-0.22, Plg=49, Azm=16; (P) Val=-1.39, Plg=19, Azm=263; Best double couple: Mo=1.5*10**17 Nm; NPl: Strike=306, Dip=51, Slip=13; NP2: Strike=208, Dip=80, Slip=140.

EASTERN NEW GUINEA REG., P.N.G. OFF E. COAST OF N. ISLAND, N.2. Mw 5.4 (HRV). Centroid, Moment Tensor (HRV): Centroid origin time 06:15:27.1; Lat 35.98 S; Lon 177.89 E; Dep 213.5; Half- duration 1.2 sec; Principal axes (scale 10**17 Nm): (T) Val=1.48, Plg=71, Azm=327; (N) Val=-0.11, Plg=12, Azm=199; (P) Val*-1.37, Plg=14, Azm=106; Best double couple: Mo=1.4*10**17 Nm; NPl: Strike=180, Dip=32, Slip=68; NP2: Strike=26, Dip=60, Slip=104. SOUTH OF FIJI ISLANDS GREECE. <ATH>. MD 3.2 (ATH). AEGEAN SEA. MD 3.8 (ATH). NEAR COAST OF CENTRAL CHILE. <GUC>. OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.9 (QUO. NEW BRITAIN REGION, P.N.G. CHILE-ARGENTINA BORDER REGION. <GUC>. SOUTH OF ALASKA. <AEIC>. ML 3.7 (AEIC).UTAH. <SLC-P>. ML 3.0 (SLC), 3.2 (GS). Felt at Richfield. SOLOMON ISLANDSHINDU RUSH REGION, AFGHANISTAN UNIMAK ISLAND REGION. <AEIC>. ML 3.2 (AEIC). LEEWARD ISLANDS. <FDF>. MD 2.8 (FDF). UTAH. <SLC-P>. ML 2.8 (SLC), 3.1 (GS). WINDWARD ISLANDS. MD 2.9 (TRN). EASTERN NEW GUINEA REG., P.N.G.NEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.8 (GUC). PYRENEES. <LDG>. ML 2.5 (STR), 2.2 (LDG). SOUTHERN ALASKA. <AEIC>. ML 3.1 (AEIC). SAN JUAN PROVINCE, ARGENTINA. MD 3.2 (GUC). ARABIAN SEAEAST OF SEVERNAYA ZEMLYA, RUSSIA NORTHERN ITALY. <GEN>. ML 2.0 (GEN). SOUTHERN ALASKA. <AEIC>. ML 3.0 (AEIC), 3.0 (PMR). AEGEAN SEA. MD 4.6 (ATH), 4.4 (PDG). ML 4.3 (THE). AEGEAN SEA. <ATH>. MD 3.3 (ATH). FRANCE. <LDG>. ML 1.6 (LDG). AEGEAN SEA. <ATH>. ML 3.1 (ATH). COLOMBIA. <RSNC>. ML 2.5 (RSNC). - NEW BRITAIN REGION, P.N.G.

APR 1999

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EASTERN GULF OF ADEN. ML 4.5 (ARO) .KERMADEC ISLANDS REGION. Mw 6.5 (GS) , 6.5 (HRV) . Me 6 . 6(GS) . Felt along the east coast of the North Island fromWairoa to Wellington. Broadband Source Parameters (GS) : Dep 81; NP1: Strike=320,Dip=80, Slip=90; NP2 : Strike=140, Dip=10, Slip=90; Radiatedenergy 1.6*10**14 Nm.

Moment Tensor (GS) : Dep 89; Principal axes (scale 10**18Nm) : (T) Val=5.85, Plg=52, Azm=260; (N) Val=-0.04, Plg=18,Azm=146; (P) Val=-5.82, Plg=32, Azm=44; Best double couple:Mo=5.8*10**18 Nm; NP1 : Strike=89, Dip=21. Slip=31; NP2 :Strike=329, Dip=79, Slip=108.

Centroid, Moment Tensor (HRV) : Centroid origin time19:04:13.1; Lat 31.79 S; Lon 173.79 W; Dep 104.4; Half-duration 4.4 sec; Principal axes (scale 10**18 Nm) : (T)Val=6.24, Plg=51, Azm=252; (N) Val=-0.72, Plg=ll, Azm=148;(P) Val=-5.52, Plg=37, Azm=49; Best double couple:Mo=5.9*10**18 Nm; NP1 : Strike=92, Dip=14, Slip=34; NP2 :Strike=329, Dip=83, Slip=101. Scalar Moment (PPT) : Mo=1.0*10**19 Nm. EASTERN GULF OF ADEN PAKISTANDODECANESE ISLANDS. <ATH>. MD 3 . 5 (ATH) . NORTHERN MID-ATLANTIC RIDGENEAR COAST OF CENTRAL CHILE. <GUC> . MD 3 . 0 (GUC) . HALMAHERA, INDONESIANORTHWESTERN BALKAN REGION. ML 2 . 1 (VIE), 1.5 (LJU) . HALMAHERA, INDONESIAPYRENEES. <LDG>. ML 2 . 5 (STR) , 2.3 (LOG). PYRENEES. <LDG>. ML 1 . 6 (LOG), 1.6 (STR). NEAR SOUTH COAST OF FRANCE. <GEN>. ML 2 . 1 (GEN), 2.0 (STR) ,1.9 (LOG) .

NORTHWESTERN BALKAN REGION. ML 2 . 6 (VIE). NORTHWESTERN CAUCASUSLEEWARD ISLANDS. MD 2 . 9 (TRN) , 2.5 (FDF) . NORTHERN ITALY. <GEN> . ML 1.9 (GEN). NORTHWESTERN BALKAN REGION. NEAR COAST OF CENTRAL CHILE. NORTHWESTERN BALKAN REGION. NORTHERN ITALY. <GEN>. ML 2. BANDA SEA VANUATU ISLANDS MONA PASSAGE. <MPR>. MD 2.8 AEGEAN SEA. ML 3.9 (ATH). SOUTH OF FIJI ISLANDS OFF COAST OF CENTRAL CHILE. OFF COAST OF CENTRAL CHILE. GULF OF CALIFORNIA NEAR EAST COAST OF KAMCHATKA PYRENEES. <STR>. ML 3.0 (STR), 2.8 NEAR COAST OF CENTRAL CHILE. ALASKA PENINSULA. <AEIC>. ML 2.6 (AEIC) . NORTHERN ITALY. <LDG> . ML 2.2 (LDG) . UTAH. <SLC-P>. ML 3.2 (SLC) . Multiple event. Felt atRichfield.KERMADEC ISLANDS, NEW ZEALAND. Mw 5 . 6 (HRV). Felt on Raoul . Centroid, Moment Tensor (HRV) : Centroid origin time 11:08:20.9; Lat 29.65 S; Lon 178.37 W; Dep 149.2; Half- duration 1.4 sec; Principal axes (scale 10**17 Nm) : (T) Val=2.17, Plg=4, Azm=102; (N) Val=0.52, Plg=62, Azm=200; (P) Val=-2.69, Plg=28, Azm=10; Best double couple: Mo=2.4*10**17 Nm; NP1 : Strike=150, Dip=67, Slip=-162; Strike=53, Dip=74, Slip=-24.

KENAI PENINSULA, ALASKA. <AEIC> . ML 2 . 5 (AEIC).UTAH. <SLC-P>. ML 3.2 (SLC). Felt at Richfield.CYPRUS REGION. <CSS> . ML 3.2 (CSS) .ECUADORAEGEAN SEA. <ATH>.CALIF. -BAJA CALIF. BORDER REGION. 3.4 (PAS).

CALIF. -BAJA CALIF. BORDER REGION. 3.6 (PAS).

SPAIN. mbLg 2.7 (MOD). Felt (II) at Bandeira, Escuadro, La Estrada, Orazo and Silleda.POLAND. MG 2.7 (WAR).SWITZERLAND. ML 2. 4 (LDG) , 2.3 (FBB) , 2.0 (STR).CENTRAL PERUKENAI PENINSULA, ALASKA. ML 2 . 6 (PMR).NORTH OF SEVERNAYA ZEMLYAAEGEAN SEA. <ATH>. MD 3.2 (ATH).CHILE -ARGENTINA BORDER REGION. <GUC> .SOUTHERN CALIFORNIA. <PAS-P>. ML 3 . 9 (PAS). Felt in the San Bernardino and Riverside areas.

CYPRUS REGION. <CSS> . ML 2.8 (CSS).NORTHWESTERN BALKAN REGION. ML 3 . 0KYUSHU, JAPANNEAR COAST OF CENTRAL CHILENORTHERN ITALY. <GEN> . ML 2 . 6 (GEN)SWITZERLAND. ML 2 . 5 (LDG), 2.4 (STR .OFF COafT OF CENTRAL CHILE. <GUC> . MO 4 . 2 (GUC).OFF OAT-1 OF CENTRAL CHILE. <GUC> . MD 3 . 5 (GUC).NORTHWESTERN BALKAN REGION. <PDC> . MD 1 . 7 (PCG).KODIAK ISLAND REGION. <AEIC> . ML 2.7 (AEIC).

<ZAG>. ML 2.2 <GUC> . <ZAG>. ML 2.1 0 (GEN), 1.7

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APR 1999 PAGE 20

22 00 46 42.2* 17.130 S 72.613 W 61 * 4.7 4.3 1.0 37 NEAR COAST OP PERU22 00 56 41.36 48.700 N 128.984 W 10 G 3.8 39 VANCOUVER ISLAND REGION. <PGC-P>. ML 3.4 (PGC).22 01 09 44.06 37.900 N 25.380 E 5 7 DODECANESE ISLANDS. <ATH>. ML 3.2 (ATH).22 01 51 45.86 34.552 N 32.058 E 22 13 CYPRUS REGION. <CSS>. ML 2.8 (CSS).22 02 05 43.96 40.340 N 19.800 E 9 6 ALBANIA. <ATH>. MD 3.0 (ATH).22 02 10 56.16 57.990 N 151.280 W 44 49 KODIAK ISLAND REGION. <AEIC>. ML 2.6 (AEIC).22 03 11 02.8& 32.062 S 71.519 W 29 12 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.9 (GUC) .22 03 18 16.7? 28.74 S 71.40 W 55 ? 4.2 1.4 21 NEAR COAST OF CENTRAL CHILE22 03 31 24.66 34.477 N 32.881 E 0 4 CYPRUS REGION. <CSS>. ML 2.8 (CSS).22 03 31 58.56 31.932 S 70.219 W 107 12 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.9 (GUC).22 03 35 08.4& 38.880 N 21.430 E 5 7 GREECE. <ATH>. MD 3.0 (ATH).22 04 28 51.56 38.900 N 21.420 E 5 7 GREECE. <ATH>. MD 3.1 (ATH).22 04 45 22.96 55.440 N 159.780 W 63 11 ALASKA PENINSULA. <AEIC>. ML 2.6 (AEIC).22 06 13 13.56 38.270 N 22.090 E 5 4 GREECE. <ATH>. MD 2.9 (ATH).22 06 15 16.It 35.020 N 24.580 E 20 6 CRETE. <ATH>. MD 3.8 (ATH).22 06 50 40.2 1.935 N 98.035 E 64 ? 5.0 0.9 41 NORTHERN SUMATERA, INDONESIA22 06 58 25.6% 32.493 N 94.090 E 33 N 0.5 12 XIZANG22 08 21 07.7% 29.154 N 129.836 E 69 * 0.8 8 RYUKYU ISLANDS22 08 26 07.16 62.120 N 151.240 W 74 61 CENTRAL ALASKA. <AEIC>.22 08 35 19.7 49.924 N 18.733 E 10 G 1.1 16 CZECH AND SLOVAK REPUBLICS. ML 3.3 (VIE), 3.3 (CLL), 3.1

(FUR).22 10 05 14.56 54.490 N 162.840 W 60 20 ALASKA PENINSULA. <AEIC>. ML 3.5 (AEIC).22 10 39 08.5* 40.070 N 21.595 E 10 G 0.7 5 GREECE. MD 3.0 (ATH).22 10 59 23.6 24.158 S 179.906 E 590 * 4.4 1.0 39 SOUTH OF FIJI ISLANDS22 12 19 04.3? 29.64 N 141.18 E 78 ? 0.6 8 SOUTH OF HONSHU, JAPAN22 12 26 12.9 38.346 N 22.107 E 10 G 4.4 1.1 70 GREECE. MD 3.9 (ATH).22 13 12 03.8? 23.47 S 170.78 E 33 N 1.0 6 LOYALTY ISLANDS REGION22 13 13 53.56 33.631 S 72.018 W 11 12 OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.4 (GUC).22 14 08 43.8 8.259 S 119.678 E 190 5.1 1.1 87 FLORES REGION, INDONESIA22 14 20 42.86 54.590 N 158.400 WO 15 SOUTH OF ALASKA. <AEIC>. ML 3.3 (AEIC).22 15 23 03.16 34.475 N 32.010 E 25 7 CYPRUS REGION. <CSS>. ML 3.7 (CSS) .22 15 25 54.86 36.434 S 71.259 W 183 13 CENTRAL CHILE. <GUC>. MD 3.5 (GUC).22 15 59 47.9 31.347 N 140.879 E 54 D 4.9 0.9 54 SOUTH OF HONSHU, JAPAN22 16 03 30.5? 7.59 N 82.83 W 33 N 1.3 11 SOUTH OF PANAMA. MD 4.3 (CASC) .22 16 17 14.76 34.541 N 32.147 E 15 6 CYPRUS REGION. <CSS>. ML 2.9 (CSS).22 16 34 46.0* 32.122 S 67.307 W 196 ? 0.8 14 MENDOZA PROVINCE, ARGENTINA. MD 3.4 (GUC).22 17 04 39.16 44.463 N 7.215 E 7 5 NORTHERN ITALY. <GEN>. ML 1.8 (GEN).22 17 40 44.56 53.670 N 165.910 W 77 5 FOX ISLANDS, ALEUTIAN ISLANDS. <AEIC>.22 17 47 54.6* 29.248 N 82.086 E 33 N 0.9 10 NEPAL22 17 50 33.6? 7.25 N 83.45 W 33 N 3.8 1.2 7 OFF COAST OF COSTA RICA22 18 02 01.8* 35.567 N 77.792 E 33N4.1 1.1 7 EASTERN KASHMIR22 18 07 55.1* 3.960 S 153.815 E 404 * 1.2 9 NEW IRELAND REGION, P.N.G.22 18 20 07.06 49.170 N 6.810 El 4 GERMANY. <FBB>. ML 2.0 (FBB).22 19 17 17.1 43.108 N 12.743 E 10 G 0.6 16 CENTRAL ITALY22 19 41 08.16 38.320 N 22.300 E 10 4 GREECE. <ATH>. MD 2.8 (ATH).22 20 08 11.3 3.240 S 126.237 E 49 * 4.9 4.2 0.9 21 BURU, INDONESIA-22 20 31 14.16 34.132 S 72.023 W 28 12 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.4 (GUC).22 20 55 08.2? 14.30 N 90.80 W 33 N 4.0 0.9 14 GUATEMALA22 21 02 09.56 54.560 N 156.680 W 21 4.5 87 SOUTH OF ALASKA. <AEIC>. ML 4.4 (AEIC), 4.1 (PMR).22 21 02 50.06 31.611 S 69.389 W 178 10 SAN JUAN PROVINCE, ARGENTINA. <GUC>.22 21 04 47.46 34.652 S 70.437 WO 10 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.3 (GUC).22 21 23 53.0? 21.71 N 143.17 E 290 ? 4.3 1.1 19 MARIANA ISLANDS REGION22 21 38 05.0* 41.835 N 141.777 E 33 N 4.1 0.9 16 HOKKAIDO, JAPAN REGION22 21 45 12.66 34.479 N 31.988 E 25 11 CYPRUS REGION. <CSS>. ML 3.7 (CSS).22 22 19 36.9 27.953 S 26.635 E 5 G 5.7 4.7 0.7 290 REPUBLIC OF SOUTH AFRICA. Two people killed in a gold mine

and some buildings damaged in the Welkom area. 22 22 20 36.3 31.983 S 71.473 W 81 * 0.9 25 NEAR COAST OF CENTRAL CHILE. MD 4.4 (GUC). Felt (IV) at Los

Vilos; (III) at Illapel, La Ligua and Papudo.22 23 26 27.56 35.556 S 70.409 W 174 11 CHILE-ARGENTINA BORDER REGION. <GUC>.23 00 45 43.26 42.461 N 20.106 E 11 10 NORTHWESTERN BALKAN REGION. <PDG>. MD 2.6 (PDG).23 01 08 07.56 31.513 S 69.954 W 157 9 SAN JUAN PROVINCE, ARGENTINA. <GUC>.23 01 15 04.36 7.582 N 82.833 W 20 6 SOUTH OF PANAMA. <UPA>. MD 3.8 (UPA).23 01 15 38.56 54.560 N 156.680 W 9 100 SOUTH OF ALASKA. <AEIC>. ML 4.3 (AEIC), 4.1 (PMR).23 02 10 22.16 34.478 S 70.740 W 100 13 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.2 (GUC).23 02 22 26.06 42.435 N 20.096 E 12 9 NORTHWESTERN BALKAN REGION. <PDG>. MD 1.9 (PDG).23 03 06 22.76 46.900 N 7.100 E 11 4 SWITZERLAND. <LDG>. ML 1.8 (LOG).23 03 18 03.7& 39.620 S 177.280 E 33 N 5 OFF E. COAST OF N. ISLAND, N.Z. <WEL>. ML 3.7 (WEL).23 04 34 05.9? 52.06 N 172.56 W 33 N 3.5 0.6 7 ANDREANOF ISLANDS, ALEUTIAN IS.23 04 42 32.66 34.690 S 71.784 W 38 13 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC).23 04 43 16.3? 12.65 N 87.89 W 33 N 3.7 0.3 5 NEAR COAST OF NICARAGUA. ML 3.8 (CASC).23 05 24 03.76 63.070 N 150.840 W 120 43 CENTRAL ALASKA. <AEIC>.23 06 21 40.8* 46.056 N 14.783 E 10 G 0.2 5 NORTHWESTERN BALKAN REGION. ML 2.0 (VIE).23 06 25 59.66 45.000 N 5.800 E 2 30 FRANCE. <LDG>. ML 2.6 (LDG), 2.4 (STR) .23 06 31 13.9* 40.521 N 142.420 E 33N3.7 0.4 5 NEAR EAST COAST OF HONSHU, JAPAN23 08 02 45.9* 5.613 S 152.979 E 65 ? 4.6 1.1 10 NEW BRITAIN REGION, P.N.G.23 08 58 57.3 17.921 N 104.813 W 33 N 4.9 0.9 97 OFF COAST OF MICHOACAN, MEXICO. Mw 5.4 (HRV) .

Centroid, Moment Tensor (HRV): Centroid origin time 08:58:56.7; Lat 18.09 N; Lon 105.14 W; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**17 Nm)-. (T) Val=1.31. Plg=32, Azm=277; (N) Val=-0.28, Plg=51, Azm=57; (P) Val=-1.03, Plg=21, Azm=174; Best double couple: Mo=1.2*10**17 Nm; NP1: Strike=312, Dip=52, Slip=l~l; NP2: Strike=48, Dip=83, Slip=39.

23 09 29 23.0* 17.939 N 104.757 W 33 N 3.7 0.9 13 OFF COAST OF MICHOACAN, MEXICO23 09 32 19.9& 32.665 S 71.661 W 24 13 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3 .4 (GUC).23 09 47 22.7* 8.879 S 75.865 W 150 G 3.6 1.0 8 CENTRAL PERU23 09 52 31.1& 34.383 S 70.606 W 106 9 CHILE-ARGENTINA BORDER REGION. <GUC>.23 09 58 09.6 6.091 S 150.485 E 53 * 5.1 4.9 1.0 62 NEW BRITAIN REGION, P.N.G. Mw 5.2 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time09:58:10.9; Lat 6.66 S; Lon 150.56 E; Dep 17.9; Half-

1 duration 1.1 sec,- Principal axes (scale 10**16 Nm} : (T)Val=6.10, Plg=68, Azm=356; (N) Val=2.05, Plg=4, Az==257; (P) val=-8.15, Plg=21, Azm=165; Best double couple:

APR 1999

2323232323232323232323232323232323232323232323

23232323

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.987 N

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.709 N

.305 S

.432 N

.090 N

.481 N

.334 N

.360 N

.35 S

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.75 W

.162 E

.17 W

.142 E

64 *33 N70

247 ?9

10 G216 ?

210 G105 G

13233 N33 N7

52

1333 N42

33 N6

10633 N33 N66

33 N53

4

3

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3

4

4

5

4

4

4

45

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.7

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.6

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309

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316

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.6" 85

.2& 33

.9* 31

.6? 13

.4? 14

.7 35

.3* 18

.It 38

.5& 31

.0& 48

.4& 54

.7& 45

.6 37

.4& 59

.7% 45

. 0& 43

.3& 44

.6% 45

.6& 41

.5« 46

.5« 35

.8& 37

.600 N

.19 N

.967 N

.893 S

.112 N

.06 N

.11 S

.860 N

.893 S

.320 N

.592 S

.300 N

.760 N

.000 N

.308 N

.750 N

.767 N

.000 N

.442 N

.668 N

.484 N

.184 N

.397 N

.545 N

61457971

13014513211221709

1616

201532707

2719

15045

118

.800 E

.46 E

.822 E

.041 W

.359 E

.61 E

.78 W

.593 E

.468 W

.980 E

.118 W

.030 E

.910 W

.200 E

.987 E

.340 W

.254 E

.300 E

.272 E

.143 E

.600 E

.583 E

.248 E

.864 W

233 N10 G73

171 *33 N10 G5310 G5

1398

872

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250 G33 N8

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434

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.7

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24 08 12 55.1% 32.559 S 24 08 45 16.8 18.043 S

70.913 W 178.449 W

33 N 568 D 5.2

0.4 0.9

24 09 22 38.4» 37.155 N24 09 24 22.7& 32.357 S24 09 38 31.7* 36.891 N24 09 53 50.3& 44.320 N24 11 22 51.6? 9.52 N24 11 24 39.5* 6.136 N

57.053 E71.430 W141.495 E

7.530 E126.43 E93.502 E

33 N 31 33 N2

33 N 43 D

4.3

4.1

4.1

1.4

1.0

0.8 1.0

10174

231215117

11

Mo=7.1*10**16 Nm; NPl: Strike=248, Dip«24, Slip=81; NP2: Strike=78, Dip=66, Slip=94.

NEAR COAST OF NICARAGUA CELEBES SEACRETE. <ATH>. MD 3.9 (ATH). ALBERTA, CANADA. <PGC-P>. ML 3.0 (PGC). KERMADEC ISLANDS REGIONSOUTHERN ALASKA. <AEIC>. ML 2.9 (AEIC), 3.2 (PMR). SOUTH OF AUSTRALIA MEXICO-GUATEMALA BORDER REGIONNEAR SOUTH COAST OF FRANCE. <STR>. ML 2.3 (STR), 2.2 (LDG). LAKE BAYKAL REGION, RUSSIA GULF OF ALASKA. <AEIC>. ML 2.5 (AEIC). POLAND. MG 3.2 .(WAR). SOUTHERN ALASKA. <AEIC>. KURIL ISLANDS KURIL ISLANDSOFF COAST OF CENTRAL CHILE. <GUC>. MD 3.5 (GUC). NEAR COAST OF NICARAGUA. MD 4.4 (CASC). UNIMAK ISLAND REGION. <AEIC>. ML 3.7 (AEIC). CELEBES SEACENTRAL CALIFORNIA. <GM-P>. MD 2.6 (GM). FRANCE. <STR>. ML 2.2 (STR). TONGA ISLANDS PANAMA-COSTA RICA BORDER REGION. <UPA>. MD 4.3 (UPA), 4.3(CASC).

CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.6 (GUC). HINDU RUSH REGION. AFGHANISTAN CHILE-ARGENTINA BORDER REGION TURKEY. Felt by people in high-rise buildings at Nicosia andPaphos, Cyprus.

ANDREANOF ISLANDS, ALEUTIAN IS.MARIANA ISLANDS. Mw 5.7 (GS), 5.7 (HRV). Me 5.2 (GS). Broadband Source Parameters (GS): Dep 13; NPl: Strike=15, Dip=80, Slip=90; NP2: Strike=195, Dip=10, Slip=90; Radiated energy 1.4«10**12 Nm.

Moment Tensor (GS): Dep 14; Principal axes (scale 10**17 Nm): (T) Val=4.10, Plg=54, Azm=>283; (N) Val=0.00, Plg=l, Azm=191; (P) Val=-4.10, Plg=36, Azm=100; Best double couple: Mo=4.1*10**17 Nm; NPl: Strike=184, Dip=9, Slip=83; NP2: Strike=ll, Dip=81, Slip=91.Centroid, Moment Tensor (HRV): Centreid origin time 18:56:26.6; Lat 12.88 N; Lon 145.88 E; Dep 15.0 Bdy; Half- duration 1.8 sec; Principal axes (scale 10**17 Nm) : (T) Val=4.65, Plg=65, Azm=246; (N) Val=-0.01, Plg=19, Azm=23; (P) Val=-4.64, Pig-16, Azm*119; Best double couple: Mo=4.7*10**17 Nm; NPl: Strike=235, Dip=33, Slip=127; NP2: Strike=13, Dip=64, Slip=68.

FRANCE. <LDG>. ML 2.7 (GEN), 2.4 (STR), 2.3 (LDG). MARIANA ISLANDS NORTH OF SEVERNAYA ZEMLYA NEAR COAST OF CENTRAL CHILE. KYUSHU, JAPAN MARIANA ISLANDS SOUTHERN MID-ATLANTIC RIDGE CENTRAL MEDITERRANEAN SEA. MD 3.9 (ATH) SOUTHERN MID-ATLANTIC RIDGE GREECE. <ATH>. ML 3.0 (ATH). CHILE-ARGENTINA BORDER REGION. GERMANY. <FBB>. ML 2.1 (STR), ALASKA PENINSULA. <AEIC>. FRANCE. <LDG>. ML 2.0 (LDG). IONIAN SEA. ML 4.4 (ATH). SOUTHERN ALASKA. <AEIC>. ROMANIAFRANCE. <LDG>. ML 2.6 (LDG), NORTHERN ITALY. <GEN>. ML 1. ROMANIAALBANIA. <PDG>. ML 3.6 (PDG), 3.6 (ROM). MD 3.5 (ATH). KURIL ISLANDS IRAN-IRAQ BORDER REGION CALIFORNIA-NEVADA BORDER REGION. <GM-P>. Mw 3.5 (BRK). MD3.6 (GM). ML 3.9 (BRK).

Moment Tensor (BRK): Dep 8; Principal axes (scale 10*"14 Nm): (T) Val=2.31, Plg=19, Az»=58; (N) Val=0.00, Plg=18, Azm=155; (P) Val=-2.31, Plg=63, Azm=286; Best double couple: Mo=2.3*10*«14 Nm; NPl: Strike=343, Dip=66, Slip=-70; NP2: Strike=121, Dip=31, Slip=-128.

CHILE-ARGENTINA BORDER REGION FIJI ISLANDS REGION. Mw 5.4 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 08:45:23.6; Lat 17.91 S; Lon 178.38 W; Dep 602.2; Half- duration 1.2 sec; Principal axes (scale 10**17 Nm) : (T) Val=1.21, Plg=27, Azm=19; (N) Val=0.47, Plg=52, Azm=149; (P) Val=-1.69, Plg=25, Azm=275; Best double couple: Mo=1.5*10**17 Nm; NPl: Strike=56, Dip=52, Slip»=178; NP2: Strike=147, Dip=89, Slip=38.

TURKMENISTAN-IRAN BORDER REGION. Felt at Esfarayen, Iran. NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC). NEAR EAST COAST OF HONSHU, JAPANNORTHERN ITALY. <STR>. ML 2.3 (lJ?G), 2.2 (STR). MINDANAO, PHILIPPINE ISLANDS NICOBAR ISLANDS, INDIA


<GUC>. MD 2.9 2.1 (LDG), 1.9

2.4 (STR). .9 (GEN). .

(GUC). (FBB).

APR 1999 PAGE 22

242424242424242424

121212131313141415

02 3139 0856 3907 5550 3354 3347 5658 5042 02

.5? 27

.3& 34

.9& 18

.16 35

.8 51

.2 5

.8 46

.8* 5

.1 4

.87 N

.472 N

.660 N

.795 S

.762 N

.976 N

.197 N

.836 S

.135 S

14333667117612516

148102

.48 E

.285 E

.880 W

.422 W

.904 W

.763 E

.019 E

.603 E

.369 E

33 N15193633 N

178 ?10 G85 *65 D

3.9

4.34.8

4.45.1

0

11010

.9

.3

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00 3710 2742 1713 5048 3515 5806 1024 0929 3030 5132 1636 3247 2943 4545 5806 5140 0254 4814 5741 5919 3844 0608 5743 4430 1235 4218 4822 0701 1315 4039 3321 4644 1510 44

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.2* 37

.4* 23

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.7& 44

.8& 31

.3 85

.0& 38

.3 22

.9 5

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.2 17

.6& 48

.!& 34

. 8& 40

.9? 14

.06 37

.26 37

.76 33

.6% 26

.9& 18

.2? 10

.2 31

.589 S

.245 S

.985 N

.367 S

.38 N

.90 S

.500 N

.477 S

.764 N

.236 S

.084 N

.373 S

.397 N

.870 S

.870 N

.030 S

.615 S

.547 N

.900 N

.047 N

.435 N

.000 N

.444 N

.300 N

.453 S

.556 N

.31 N

.760 N

.430 N

.632 S

.563 N

.150 N

.85 N

.798 S

1471791161468117913870

1617871687

719

168718626

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27013067

12569

.087 E

.372 E

.405 W

.892 E

.16 E

.04 W

.854 E

.478 W

.467 E

.151 E

.680 E

.183 W

.295 E

.470 W

.390 E

.770 E

.281 W

.107 E

.050 E

.844 E

.860 E

.100 W

.398 W

.300 W

.487 W

.233 W

.44 W

.490 W

.300 W

.403 W

.053 E

.200 W

.92 E

.255 W

18 *500 G

410 G33 N

240 ?476 ?12033 N10 G

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25 09 13 12.4 35.432 N 140.123 E 103

2525252525252525

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4.6

25 09 21 33.3& 60.130 N25 09 48 27.8& 54.050 N25 09 51 26.5 46.180 N

09 52 13.7* 30.430 N10 40 32.6& 63.270 N 10 44 38.9& 37.650 N10 48 37.6& 37.640 N11 02 37.9& 37.630 N 11 08 11.0& 33.873 S11 29 31.3& 18.740 N12 27 05.2 36.441 N

140.990 W163.140 W12.584 E

79.634 E151.220 W

2.210 W2.200 W2.220 W

72.171 W67.510 W

140.473 E

20

10 G

10 G5430 G

41 32 82 5.3

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43.481 E2.120 W

172.846 W72.265 W21.540 E147.128 E24.436 E2.210 W

33 N2

33 N 145

56 * 33 N

0.8 53

1.2

0.9

0.8

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1.3 0.9

121397

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284

BONIN ISLANDS REGIONCYPRUS REGION. <CSS>. ML 2.9 (CSS).PUERTO RICO REGION. <MPR>. MD 2.4 (MPR).CENTRAL CHILE. <GUC>.ANDREANOF ISLANDS, ALEUTIAN IS. Felt (IV) on Adak.MINDANAO. PHILIPPINE ISLANDSNORTHWESTERN BALKAN REGION. ML 2.4 (VIE), 1.8 (LJU) .NEW BRITAIN REGION, P.N.G.SOUTHERN SUMATERA, INDONESIA. Mw 5.3 (HRV) . Felt (III) at Bengkulu.

Centroid, Moment Tensor (HRV): Centroid origin time 15:42:06.8; Lat 4.25 S; Lon 102.06 E; Dep 59.3; Half- duration 1.2 sec; Principal axes (scale 10**17 Nm): (T) Val=l.ll, Plg=60, Azm=57; (N) Val=0.02, Plg=9, Azm=311; (P) Val=-1.13, Plg=28, Azm=216; Best double couple: Mo=l.l*10**17 Nm; NP1: Strike=283, Dip=19, Slip=61; NP2: Strike=133, Dip=73, Slip=99.

EASTERN NEW GUINEA REG., P.N.G.KERMADEC ISLANDS REGIONSOUTHERN CALIFORNIA. <PAS-P>. ML 3.1 (PAS).EASTERN NEW GUINEA REG., P.N.G.NEPAL-INDIA BORDER REGIONKERMADEC ISLANDS REGIONSOUTH OF HONSHU, JAPANCHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.5 (GUC).NEAR EAST COAST OF KAMCHATKAMID-INDIAN RIDGEAFGHANISTAN-TAJIKISTAN BORD REG.NORTHERN CHILENORTHERN ITALY. <GEN>. ML 2.2 (GEN), 1.8 (LDG).CENTRAL CHILE. <GUC>.GERMANY. <STR>. ML 2.0 (STR), 1.9 (LDG).SOUTH ISLAND, NEW ZEALAND. <WEL>. Felt at Queenstown.NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.5 (GUC).NORTH OF SEVERNAYA ZEMLYAAEGEAN SEA. <ATH>.VOLCANO ISLANDS REGIONNORTHERN SUMATERA, INDONESIA. FeltPYRENEES. <LDG>. ML 2.2 (STR), 2.0GUERRERO, MEXICOFRANCE. <LDG>. ML 1.9 (LDG).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3 .4 (GUC)NORTHERN CALIFORNIA. <GM-P>. MD 3.0 (GM) .GUATEMALAUTAH. <SLC-P>. ML 3.1 (SLC).SPAIN. <MDD>. mbLg 1.9 (MOD).CHILE-ARGENTINA BORDER REGION. <GUC>.SOUTHEAST OF RYUKYU ISLANDSMONA PASSAGE. <MPR>. MD 2.2 (MPR).LEYTE, PHILIPPINE ISLANDSSAN JUAN PROVINCE, ARGENTINA. Mw 5.3 (HRV) . Felt (III) at Chincolco, Petorca and San Felipe; Los Andes, Valparaiso and Vina del Mar, Chile.

Centroid, Moment Tensor (HRV): Centroid origin time 09:10:48.2; Lat 31.91 S; Lon 69.34 W; Dep 120.0; Half- duration 1.1 sec,- Principal axes (scale 10**17 Nm) : (T) Val=1.27, Plg=6, Azm=286; (N) Val=-0.28, Plg=18, Azm=194; (P) Val=-0.99, Plg=71, Azm=35; Best double couple: Mo=l.l*10**17 Nm; NP1: Strike=36, Dip=42, Slip=-62; NP2: Strike=181, Dip=54, Slip=-113.

NEAR EAST COAST OF HONSHU, JAPAN. Felt (II JMA) in Chiba, Kanagawa, eastern Saitama and eastern Shizuoka Prefectures. Also felt (II JMA) in the Tokyo-Yokohama area. SOUTHEASTERN ALASKA. <AEIC>. ML 2.7 (AEIC), 2.7 (PGC).

ML 2.7 (AEIC). 3.6 (VIE), 3.3 (FBB)

(II) at Banda Aceh. (LDG) .

MD 2.2 (GUC)

MD 4.9 (GUC). (II) at

3.3

2C

UNIMAK ISLAND REGION. <AEIC>.NORTHERN ITALY. ML 3.7 (GRF), (FUR), 3.3 (LDG).

XIZANG-INDIA BORDER REGIONCENTRAL ALASKA. <AEIC>. ML 2.7 (AEIC), 2.9 (PMR).SPAIN. <MDD>. mbLg 2.2 (MOD).SPAIN. <MDD>. mbLg 2.8 (MOD).SPAIN. <MDD>. mbLg 2.2 (MOD).OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.5 (GUC).MONA PASSAGE. <MPR>. MD 3.3 (MPR).NEAR EAST COAST OF HONSHU, JAPAN. Mw 5.3 (HRV). Felt (IV JMA) in Ibaraki and Tochigi; (III JMA) in parts of Chiba, Fukushima and Saitama Prefectures. Felt from Iwate to Shizuoka Prefectures.

Centroid, Moment Tensor (HRV): Centroid origin time 12:27:05.7; Lat 36.15 N; Lon 140.73 E; Cep 62.3; Half- duration 1.0 sec; Principal axes (scale 10**17 Nm) .- (T) Val=0.93, Plg=66, Azm=245; (N) Val=0.27, ?lg=17, Azm=20; (P) Val=-1.20, Plg=16, Azm=115; Best double couple-. Mo=l.l*10**l7 Nm; NP1: Strike=229, Dip=32, Slip=123; NP2: Strike=ll, Dip=63, Slip=71.

IRAQSPAIN. <MDD>. mbLg 2.6 (MOD).ANDREANOF ISLANDS, ALEUTIAN IS.NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.2 (GUC).SOUTHERN GREECE. <ATH>. ML 3.4 (ATH).EASTERN NEW GUINEA REG., P.N.G.CRETE. MD 3.6 (ATH).SPAIN. <MDD>. mbLg 2.7 -(MOD).

APR 1999

25 16 55 39.6& 37.010 N 4.190 W 0 G 9 SPAIN. <MDD>. mbLg 1.9 (HDD). 25 17 04 24. 7& 60.080 N 153.020 W 138 51 SOUTHERN ALASKA. <AEIC>. 25 17 05 32.0& 44.409 N 6.990 E 7 10 FRANCE. <GEN>. ML 1.9 (GEN). 25 18 10 47.5% 35.587 N 85.949 E 10 G 1.4 7 NORTH OF SEVERNAYA ZEMLYA25 18 28 40.7* 45.978 N 15.005 E 10 G 0.1 5 NORTHWESTERN BALKAN REGION. ML 1.6 (VIE), 1.2 (LJU) . 25 19 17 48.1* 29.607 S 72.035 W 55 * 1.0 23 OFF COAST OF CENTRAL CHILE 25 20 01 42.6* 18.571 S 69.187 W 151 4.8 0.8 17 NORTHERN CHILE. Felt (II) at Arica. 25 20 05 51.2& 37.190 N 20.760 E 5 4 IONIAN SEA. <ATH>. MD 3.0 (ATH) . 25 20 18 24.2* 44.875 S 167.752 E 138 1.1 17 SOUTH ISLAND, NEW ZEALAND25 20 22 01.4& 36.990 N 3.730 W 4 7 STRAIT OF GIBRALTAR. <MDD>. mbLg 1.5 (HDD). 25 20 36 47.7 45.872 N 7.042 E 5 G 1.2 79 NORTHERN ITALY. ML 3.2 (LOG), 3.0 (STR) , 2.8 (FBB) . 25 21 00 28.1* 57.790 S 25.663 W 33 N 4.4 0.8 21 SOUTH SANDWICH ISLANDS REGION 25 21 57 54.2 11.575 S 66.159 E 10 G 4.7 0.8 59 MID-INDIAN RIDGE25 22 16 41.4 43.069 N 18.992 E 10 G 0.7 12 NORTHWESTERN BALKAN REGION. ML 2.7 (PDG) .25 22 20 14.8% 55.242 N 123.944 E 33 N 1.5 11 SOUTHEASTERN SIBERIA, RUSSIA. Felt (IV) at Tynda and (II) at

Zeya.25 22 55 15.8& 32.638 S 70.422 W 110 11 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.8 (GUC) .26 00 09 04.4& 38.810 N 122.799 W 5 12 NORTHERN CALIFORNIA. <GM-P>. MD 2.9 (GM) .26 00 30 13.9& 55.810 N 159.415 W 107 36 ALASKA PENINSULA. <AEIC>.26 00 45 04.1& 32.133 S 70.507 W 92 10 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.8 (GUC).26 01 02 43.3 16.756 N 121.496 E 33 N 4.8 1.1 37 LUZON, PHILIPPINE ISLANDS26 01 05 55.6& 3S.420 N 20.740 E 5 6 GREECE-ALBANIA BORDER REGION. <ATH>. MD 2.8 (ATH).26 01 09 34.7 47.139 N 11.241 E 10 G 0.2 6 AUSTRIA. ML 1.3 (VIE).26 01 13 25.8 41.965 N 21.991 E 10 G 3.5 1.2 44 NORTHWESTERN BALKAN REGION. ML 3.7 (PDG), 3.3 (ROM). MD 3.6

(ATH) . Felt (IV) in the Nikole area and ac Skopje, Stip and Veles.

26 01 50 42.4 34.276 N 25.286 E 33 N 4.1 1.1 110 CRETE. ML 4.3 (ATH).26 01 54 04.0? 19.44 S 173.41 W 33 N 1.0 12 TONGA ISLANDS26 02 06 58.6& 41.950 N 19.220 E 8 9 ALBANIA. <PDG>. MD 1.6 (PDG).26 02 13 08.0? 14.67 N 88.49 W 33 N 3.6 1.0 10 HONDURAS26 02 16 31.4& 33.701 S 69.542 W 146 11 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.8 (GUC).26 02 23 52.5* 45.769 N 27.805 E 33 N 1.3 5 ROMANIA26 02 45 53.5& 33.963 S 70.910 W 74 13 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.1 (GUC).26 02 53 46.0 45.821 N 11.056 E 10 G 1.1 98 NORTHERN ITALY. ML 3.9 (VIE), 3.7 (GRF) , 3.5 (STR), 3.4

(LDG), 3.3 (FUR).26 04 35 32.9? 19.37 S 69.21 W 141 ? 3.5 0.6 5 NORTHERN CHILE. Felt (IV) at Camarones and (III) at Arica.26 04 49 46.5& 34.947 S 71.227 W 93 13 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.0 (GUC).26 05 45 08.4* 24.008 N 120.564 E 33 N 1.0 7 TAIWAN. Felt (IV JMA) at Hua-lien. Felt in northeastern

Taiwan.26 05 48 48.0& 44.831 N 7.155 E 10 20 NORTHERN ITALY. <GEN>. ML 2.4 (GEN), 2.1 (LDG).26 07 07 02.7 53.965 N 159.190 E 127 D 4.8 0.7 133 NEAR EAST COAST OF KAMCHATKA26 07 30 16.4? 20.19 N 61.38 E 10 G 4.2 1.2 13 ARABIAN SEA26 07 57 06.3 31.882 N 140.348 E 94 D 4.4 1.1 33 SOUTH OF HONSHU, JAPAN26 08 03 33.3* 85.743 N 82.648 E 10 G 4.0 1.4 11 NORTH OF SEVERNAYA ZEMLYA26 08 07 24.2& 54.108 N 164.157 W 10 18 UNIMAK ISLAND REGION. <AEIC>. ML 2.6 (AEIC).26 08 10 38.4 9.752 N 69.351 W 33 N 4.1 0.8 27 VENEZUELA26 08 59 31.3& 38.230 N 20.500 E 5 7 GREECE. <ATH>. MD 3.3 (ATH).26 10 29 51.3* 37.145 N 20.903 E 5 G 4.0 1.4 19 IONIAN SEA. ML 4.1 (ATH).26 11 16 59.5& 41.853 N 19.387 E 17 8 ALBANIA. <PDG>. MD 2.0 (PDG).26 11 26 33.1* 6.942 S 127.456 E 409 ? 4.1 1.2 15 BANDA SEA26 11 33 12.8 6.692 S 143.329 E 33 N 4.3 0.8 13 NEW GUINEA, PAPUA NEW GUINEA. ML 3.8 (PMG) .26 11 43 05.3 51.646 N 16.400 E 5 G 1.1 17 POLAND. ML 3.8 (GRF), 3.6 (VIE).26 11 49 17.6? 52.74 N 171.12 E 33N4.1 0.2 6 NEAR ISLANDS, ALEUTIAN ISLANDS26 12 03 25.4& 7.311 N 79.675 W 8 6 SOUTH OF PANAMA. <UPA>. MD 3.8 (UPA) .26 12 05 50.2& 60.667 N 151.615 W 71 2.8 51 KENAI PENINSULA, ALASKA. <AEIC>.26 12 10 11.9 25.602 S 13.802 W 10 G 4.94.6 0.9 54 SOUTHERN MID-ATLANTIC RIDGE. Mw 5.3 (HRV) .

Centroid, Moment Tensor (HRV): Centroid origin time 12:10:17.8; Lat 25.83 S; Lon 13.78 W; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**17 Nm): (T) Val=1.00, Plg=19, Azm=121; (N) Val=-0.22. Plg=70, Azm=277; (P) Val=-0.79, Plg=8, Azm=29; Best double couple: Mo=8.9*10**16 Nm; NP1: Strike=164, Dip=71, Slip=172; NP2: Strike=256, Dip=82, Slip=19.

26 13 20 07.6 =5.672 N 34.830 E 10 G 5.2 4.9 1.0 151 NORTH OF SEVERNAYA ZEMLYA. Mw 5.2 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 13:20:08.5; Lat 85.61 N; Lon 84.43 E; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm) : (T) Val=7.28, Plg=ll, Azm=205; (N) Val=0.64, Plg=4, Azm=115; (P) Val=-7.92, Plg=79, Azm=5; Best double couple: Mo=7.6*10**16 Nm; NP1: Strike=300, Dip=35, Slip=-83; NP2: Strike=112, Dip=56, Slip=-95.

26 13 23 43.8& 42.800 N 0.200 E 2 14 PYRENEES. <LDG>. ML 2.8 (LDG), 2.5 (STR).26 14 08 10.5& 53.583 N 165.792 W 100 14 FOX ISLANDS, ALEUTIAN ISLANDS. <AEIC>.26 14 46 55.4* 5.157 S 102.390 E 68 ? 4.7 1.0 32 SOUTHERN SUMATERA, INDONESIA26 15 01 58.8& 38.870 N 21.660 E 5 11 GREECE. <ATH>. ML 3.3 (ATH).26 15 17 20.4& 33.583 S 71.620 W 32 7 NEAR COAST OF CENTRAL CHILE. <GUC>.26 18 17 26.2 1.648 S 77.783 W 173 D 5.6 0.7 435 ECUADOR. Mw 6.0 (GS) , 6.0 (HRV). Me 5.8 (GS) .

Broadband Source Parameters (GS): Dep 168; NPl: Strike=310, Dip=75, Slip=-100; NP2: Strike=164, Dip=13, Slip=-57; Radiated energy 1.1*10**13 Nm.Moment Tensor (GS): Dep 170; Principal axes (scale 10**18 Nm): (T) Val=1.48, Plg=15, Azm=53; (N) Vai=-0.26, Plg=26, Azm=315; (P) Val=-1.22, Plg=59, Azm=170; Best double couple: Mo=1.3*10**18 Nm; NPl: Strike=l~5, Dip=38, Slip=-43; NP2: Strike=302, Dip=65, Slip=-119. Centroid, Moment Tensor (HRV): Centroid origin time 18:17:30.1; Lat 1.50 S; Lon 77.83 W; Dep 164.2; Half- duration 2.6 sec; Principal axes (scale 10**18 Nm) : (T) Val=1.45, Plg=18, Azm=50; (N) Val=-0.21, ?lg=21, Azm=313; (P) Val=-1.25, Plg=62, Azm=178; Best dcuhle couple: Mo="1.3"10**18 Nm; NPl: Strike=169, Dip=32, Slip=-49; NP2: Strike=304, Dip=66, Slip=-113. Scalar Moment (PPT): Mo=8.3*10**17 Nm.

APR 1999 PAGE 24

2626262626

2626272727272727272727272727

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FRANCE. <LDG>. ML 2.0 (LOG).NORTHERN MOLUCCA SEAIRAQPORTUGAL. mbLg 2.3 (HDD).SPAIN. mbLg 3.3 (MDD). ML 3.3 (LOG). Felt (II) at Chiriveland Santa Maria de Nieva.

COLOMBIA. <RSNC>. ML 2.6 (RSNC). SOUTHERN IRAN SOUTHERN IRANPOLAND. ML 3.4 (GRF), 3.2 (VIE). NEAR COAST OF CENTRAL CHILE. <GUC>. SOUTH OF ALASKA. ML 4.3 (AEIC). STRAIT OF GIBRALTAR. <MDD>. mbLg 1.4 (MOD). NEAR EAST COAST OF KAMCHATKAGREECE-ALBANIA BORDER REGION. <ATH>. MD 3.0 (ATH). CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.1 (GUC). FIJI ISLANDS REGION NEAR EAST COAST OF HONSHU, JAPAN CHILE-ARGENTINA BORDER REGION. <GUC>. NEW IRELAND REGION, P.N.G. Mw 5.4 (HRV). Centroid, Moment Tensor (HRV): Centroid origin time04:17:36.0; Lat 5.28 S; Lon 153.79 E; Dep 89.0; Half- duration 1.2 sec; Principal axes (scale 10**17 Nm) : (T)Val=1.09, Plg=42, Azm=109; (N) Val=0.21, Plg=7, Azm=13; ;Val=-1.31, Plg=47, Azm=275; Best double couple:Mo=1.2*10**17 Nm; NP1: Strike=267, Dip=8, Slip=-16; NP2: Strike=12, Dip=88, Slip=-97.

WINDWARD ISLANDS. <FDF>. MG 1.6 (PDF). LEEWARD ISLANDS. MD 3.0 (TRN), 2.6 (FDF). VANUATU ISLANDSCHILE-ARGENTINA BORDER REGION. <GUC>. PANAMA. <UPA>. MD 3.9 (UFA). SPAIN. <MDD>. mbLg 2.2 (MDD). OFF EAST COAST OF HONSHU, JAPAN CHILE-ARGENTINA BORDER REGION. <GUC>. NORTHERN ITALY. ML 3.0 (VIE). CHILE-ARGENTINA BORDER REGION. <GUC>. NEAR COAST OF NORTHERN CHILE FRANCE. <LDG>. SVALBARD REGIONKODIAK ISLAND REGION. <AEIC>. ML 3.0 (AEIC). LEEWARD ISLANDS. MD 3.9 (FDF). IONIAN SEA. <ATH>. MD 2.9 (ATH).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.3 (GUC). GREECE. <ATH>. MD 3.0 (ATH). NORTHERN ALASKA. ML 3.3 (PMR).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.4 (GUC). OFF COAST OF CENTRAL CHILE. <GUC>. SOUTH OF PANAMA. <UPA>. MD 3.8 (UPA). VANUATU ISLANDS GREECE. <ATH>. MD 3.2 (ATH).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.5 (GUC). NEAR COAST OF NORTHERN CALIF. <GM-P>. MD 2 .8 (GM) . BANDA SEACENTRAL ALASKA. <AEIC>. ML 2.8 (AEIC), 3.1 (PMR). NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.4 (GUC).STRAIT OF GIBRALTAR. <MDD>. mbLg 2.3 (MDD). Felt (III) a~Berja, Spain.

NORTHERN IRAN. Felt at Birjand.CHILE-ARGENTINA BORDER REGION. <GUC>. MD 4.1 (GUC).IONIAN SEA. MD 3.8 (ATH), 3.5 (PDG).GREECE. <ATH>. MD 3.4 (ATH).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.2 (GUC).CHILE-ARGENTINA BORDER REGION. <GUC>.KAMCHATKAOREGON. <SEA-P>. MD 3.0 (SEA). ML 3.1 (GS). Felt at Christinas Valley.STRAIT OF GIBRALTAR. <MDD>. mbLg 2.2 (MDD).GREECE-ALBANIA BORDER REGION. <ATH>. MD 2.9 (ATH).ALASKA PENINSULA. <AEIC>.CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.2 (GUC).STRAIT OF GIBRALTAR. <MDD>.PUERTO RICO REGION. <MPR>. MD 2.8 (MPR).NORTHERN MID-ATLANTIC RIDGEHOKKAIDO, JAPAN REGIONCHILE-ARGENTINA BORDER REGION. <GUC>.POLAND. ML 2.8 (VIE).EASTERN NEW GUINEA REG., P.N.G. ML 4.1 (PMG).PANAMA-COSTA RICA BORDER REGION. MD 3.9 (UFA).ALASKA PENINSULA. <AEIC>. ML 2.7 (AEIC).SOUTHERN EAST PACIFIC RISE. Mw 5.3 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 06:34:55.9; Lat 35.74 S; Lon 106.18 W; Dep 15.0 Fix; Half duration 1.1 sec; Principal axes (scale 10**17 Nm): (T Val=1.17. Plg=7, Azm=218; (N) Val=-0.34, Plg=80, Azm=5! (P) Val=-0.84, Plg=6, Azm=309; Best double couple: Mo=1.0*10**17 Nm; NP1: Strike=354, Dip=80, Slip=l; NP2 : Strike=264, Eip=89, Slip=170.

ALASKA PENINSULA. <AEIC>. ML 2.8 (AEIC).PYRENEES. <STR>. ML 2.5 (LOG), 2.4 (STR) Balagnas, France.

MID-INDIAN RIDGEOREGON. <SEA-?>. MD 3.8 (SEA)

Felt (III) a- !£ _-

ML 4.3 (BRK). Felt at

APR 1999

28 08 47 55.4 45.464 X 26.183 E 156

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Christinas Valley and Paisley. 5.1 0.9 374 ROMANIA. Mw 5.4 (HRV). Felt at Bucharest, Cemavoda.

Constanta and Galati. Felt (V) at Chisinau, Moldova. Also felt at Skopje, former Yugoslav Republic of Macedonia.

Centroid, Moment Tensor (HRV): Centroid origin rime 08:47:58.0; Lat 45.51 N; Lon 26.08 E; Dep 143.7; Half- duration 1.2 sec; Principal axes (scale 10**17 Nm) : (T) Val=1.32, Plg=80, Azm=66; (N) Val=0.21, Plg=2, Azm=167; (P) Val=-1.53, Plg=9, Azm=258; Best double couple: Mo=1.4*10**17 Nm; NP1: Strike=350, Dip=36, Slip=93; NP2: Strike=166, Dip=54, Slip=88.

SOUTH OF FIJI ISLANDSCHILE-ARGENTINA BORDER REGION. <GUC>.OREGON. <SEA-P>. MD 3.0 (SEA). ML 3.3 (GS). Felt at Christmas Lake.NORTHWESTERN BALKAN REGION. ML 3.3 (PDG), 3.2 (ROM).OREGON. ML 2.6 (GS). MD 2.5 (SEA).SOUTH SANDWICH ISLANDS REGIONPAKISTAN. Felt at Islamabad and Rawalpindi.BAJA CALIFORNIA, MEXICO. <ECX>. MD 4.0 (ECX) . Felt at El Rosario, San Quintin and Vicente Guerrero.

MONA PASSAGE. <MPR>. MD 3.4 (MPR).CENTRAL ALASKA. <AEIC>.POLAND. ML 4.2 (GRF), 3.7 (VIE).KURIL ISLANDSPANAMA-COSTA RICA BORDER REGION. <UPA>. MD 4.1 (UPA)-OFF COAST OF CHIAPAS, MEXICOANDREANOF ISLANDS, ALEUTIAN IS.NORTH ATLANTIC OCEANPERU-BOLIVIA BORDER REGIONGREECE-ALBANIA BORDER REGION.SOUTHERN IRANSOUTHERN IRANGREECE. <ATH>. ML 3.2 (ATH).SANTA CRUZ ISLANDSGREECE-ALBANIA BORDER REGION.BAJA CALIFORNIA, MEXICO. <ECX>. MD 4.3 (ECX). Camalu, El Rosario, San Felipe, San Quintin, and Vicente Guerrero.

0.6 7 SOUTH SANDWICH ISLANDS REGION 1.1 21 SOUTH SANDWICH ISLANDS REGION

48 BAJA CALIFORNIA, MEXICO. <ECX>. MD 4.1 (ECX). Felt at ElRosario, San Quintin and Vicente Guerrero.

1.1 8 EASTERN NEW GUINEA REG., P.N.G. ML3.9 (PMG).4 PYRENEES. <STR>. ML 2.1 (STR), 1.9 (LDG).

0.6 21 EASTERN NEW GUINEA REG.. P.N.G.10 PUERTO RICO REGION. <MPR>. MD 3.6 (MPR).

0.9 153 UNIMAK ISLAND REGION. Mw 5.3 (HRV). ML 4.7 (PMR) , 4.2 (AEIC)Centroid, Moment Tensor (HRV): Centroid origin time 22:10:06.2; Lat 53.42 N; Lon 163.43 W; Dep 51.2; Half- duration 1.1 sec; Principal axes (scale 10**16 Nm) : (T) Val=9.01, Plg=36, Azm=45; (N) Val=-0.48, Plg=48, Azm=262; (P) Val=-8.53, Plg=19, Azm=149; Best double couple: Mo=8.8*10**16 Nm; NP1: Strike=193, Dip=50, Slip=14; NP2: Strike=94, Dip=79, Slip=l39.

1.0 43 CHILE-BOLIVIA BORDER REGION12 OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.4 (GUC).

0.7 15 POLAND. ML 3.7 (GRF), 3.4 (VIE).7 GREECE. <ATH>. MD 2.8 (ATH).

11 NORTH ISLAND, NEW ZEALAND. <WEL>.8 CHILE-ARGENTINA BORDER REGION. <GUC>.

29 SOUTHEASTERN ALASKA. <AEIC>. ML 2.9 (AEIC), 2.9 (PGC).1.1 31 SOUTH OF KERMADEC ISLANDS 1.1 14 ADRIATIC SEA. MD 2.7 (PDG).

47 CENTRAL ALASKA. <AEIC>. ML 2.6 (AEIC), 2.8 (PKH). 1.0 13 SAN JUAN PROVINCE, ARGENTINA 1.3 18 SOUTHERN XINJIANG, CHINA

25 SOUTHERN CALIFORNIA. <PAS-P>Camarillo and Ventura.

8 SOUTH OF PANAMA. <UPA>. MD 4.3 (UPA). 1.2 13 IRIAN JAYA REGION, INDONESIA1.0 330 SOUTHEAST OF RYUKYU ISLANDS. Mw 5.9 (GS) , 5.9 (HRV). Me-5-. 7

(GS) . Felt (III JMA) on Amami-0-shima, (II JJ4A) on Kikai- jima and (I JMA) on Nakano-shima and Tanega-shima. Also felt (I JMA) in southern Kyushu.

Broadband Source Parameters (GS): Dep 18; NP1: Strike=200, Dip=75, Slip=-70; NP2: Strike=325, Dip=25, Slip=-142; Radiated energy 8.6*10**12 Nan.

Moment Tensor (GS): Dep 20; Principal axes (scale 10**17 Nm): (T) Val=7.33, Plg=37, Azm=277; (N) Val=-0.44, Plg=3, Azm=9; (P) Val=-6.89, Plg=53, Azm=103; Best double couple: Mo=7.1*10**17 Nm; NP1: Strike=348, Dip=8, SIi?=-lll; NP2: Strike=189, Dip=82, Slip=-87.

Centroid, Moment Tensor (HRV): Centroid origin time 07:46:11.5; Lat 28.92 N; Lon 131.10 E; Dep 26.9; Half- duration 2.5 sec; Principal axes (scale 10**13 Nm) : (T) Val=0.75, Plg=19, Azm=280; (N) Val=0.27, Plc=IO, Azm=13; (P) Val=-1.02, Plg=68, Azm=130; Best double ccuple: Mo=8.9*10**17 Nm; NP1: Strike=353, Dip=27, Sli?=-112; NP2: Strike=198, Dip=65, Slip=-79.

Scalar Moment (PPT): Mo=l.3*10**18 Nm. 1.3 13 BONIN ISLANDS REGION

.1.0 15 NEAR COAST OF NORTHERN PERU

4.7

5.0 4.3

MD 3.3 (GUC)

ML 2.8 (PAS). Felt at

4.5 4.5

APR 1999 PAGE 26

29 09 30 07.1* 8.497 S 111.833 E 33 N 4.0 1.1 12 JAWA, INDONESIA29 09 49 43.8* 12.367 N 144.148 E 33 N 4.4 1.3 17 SOUTH OF MARIANA ISLANDS29 10 29 20.7 37.384 N 20.227 E 33 N 4.3 1.2 93 IONIAN SEA. MD 4.4 (ATH), 4.4 (PDG). ML 4.3 (THE).29 10 40 35.5* 51.525 N 174.835 W 33 N 3.9 1.1 14 ANDREANOF ISLANDS,' ALEUTIAN IS.29 11 02 33.5 28.870 N 131.163 E 33 N 4.9 4.4 1.3 68 SOUTHEAST OF RYUKYU ISLANDS29 11 05 20.4& 39.050 N 22.400 E 5 5 GREECE. <ATH>. MD 3.0 (ATH).29 11 13 59.5* 31.563 S 69.529 W 131 ? 0.9 15 SAN JUAN PROVINCE, ARGENTINA. MD 3.5 (GUC) .29 11 17 56.3& 44.565 N 7.223 E 13 8 NORTHERN ITALY. <GEN>. ML 2.1 (GEN).29 11 56 07.0 28.864 N 131.260 E 33 N 4.4 1.2 31 SOUTHEAST OF RYUKYU ISLANDS29 12 09 15.4? 5.17 S 102.99 E 33 N 4.5 0.8 11 SOUTHERN SUMATERA, INDONESIA29 12 16 12.6? 35.94 N 141.45 E 33 N 1.4 5 NEAR EAST COAST OF HONSHU, JAPAN29 12 22 10.7* 33.960 S 68.380 W 10 G 1.3 14 MENDOZA PROVINCE, ARGENTINA. MD 4.0 (GUC).29 12 22 39.3& 53.622 N 165.412 W 54 9 FOX ISLANDS, ALEUTIAN ISLANDS. <AEIC>. ML 2.9 (AEIC) .29 13 41 37.0? 13.65 N 90.37 W 33 N 4.0 1.2 12 NEAR COAST OF GUATEMALA29 13 51 31.7* 8.358 S 120.621 E 207 * 4.4 1.3 20 FLORES REGION, INDONESIA29 13 55 41.4* 26.621 S 114.466 W 10 G 4.8 4.6 0.9 41 EASTER ISLAND REGION29 14 02 59.9* 6.850 N 82.255 W 33 N 4.6 1.2 28 SOUTH OF PANAMA. MD 4.4 (UFA).29 14 06 29.5& 32.614 S 71.793 W 26 12 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.4 (GUC).29 14 07 38.0 28.900 N 131.123 E 33 N 4.5 4.5 1.2 34 SOUTHEAST OF RYUKYU ISLANDS29 14 17 25.0? 5.91 S 130.40 E 90 ? 3.9 1.0 10 BANDA SEA29 14 21 54.26 44.412 N 7.273 E 11 6 NORTHERN ITALY. <GEN>. ML 1.9 (GEN).29 14 36 50.6? 12.12 N 143.80 E 33 N 1.4 7 SOUTH OF MARIANA ISLANDS29 14 40 35.5& 33.742 S 71.859 W 34 13 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.5 (GUC).29 14 42 53.7& 34.022 S 70.076 W 8 8 CHILE-ARGENTINA BORDER REGION. <GUC>.29 14 57 23.4* 17.930 N 40.127 E 10 G 4.5 0.9 19 RED SEA29 15 01 18.6 26.611 S 114.396 W 10 G 5.1 4.8 0.9 75 EASTER ISLAND REGION. Mw 5.3 (HRV) .

Centroid, Moment Tensor (HRV): Centroid origin time 15:01:22.4; Lat 27.25 S; Lon 114.36 W; Dep 15.0 Fix; Half- duration 1.1 sec; Principal axes (scale 10**16 Nm): (T) Val=8.97, Plg*13, Azm*39; (N) Val=0.83, Plg=5, Azm=131; (P) Val=-9.81, Plg*76, Azm=242; Best double couple: Mo«9.4*10**16 Nm; NP1: Strike=123, Dip=32, Slip=-100; NP2: Strike*314, Dip=58, Slip=-84.

29 16 27 23.3 28.897 N 131.160 E 33 N 4.7 4.5 1.3 58 SOUTHEAST OF RYUKYU ISLANDS 29 16 31 29.76 10.236 N 60.277 W 10 10 TRINIDAD. <TRN>. MD 3.5 (TRN) . 29 17 03 02.66 44.572 N 7.180 E 12 9 NORTHERN ITALY. <GEN>. ML 2.3 (GEN). 29 17 15 20.8* 15.224 N 91.541 W 232 ? 4.2 0.9 16 MEXICO-GUATEMALA BORDER REGION29 17 33 10.2& 32.697 S 70.094 W 105 11 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.6 (GUC). 29 17 54 32.7? 18.03 N 39.92 E 10 G 4.5 1.6 44 RED SEA 29 18 26 37.7 35.781 S 102.900 W 10 G 5.1 5.2 1.1 78 SOUTHERN PACIFIC OCEAN. Mw 5.8 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 18:26:42.6; Lat 35.87 S; Lon 103.05 W; Dep 15.0 Fix; Half- duration 2.1 sec; Principal axes (scale 10**17 Nm): (T) Val=6.61, Plg=3, Azm=231; (N) Val=-0.38, Plg=80, Azm=127 ; (P) Val=-6.23, Plg=10, Azm=322; Best double couple: Mo=6.4*10**17 Nm; NP1: Strike=6, Dip=81, Slip=-5; NP2: Strike=97, Dip=85, Slip=-171.

29 18 44 12.7 45.660 N 26.398 E 154 4.0 1.2 38 ROMANIA29 18 57 56.8 31.636 N 59.704 E 33 N 4.4 0.8 26 NORTHERN IRAN. Felt at Birjand.29 19 04 29.66 58.155 N 143.217 W 10 G 45 GULF OF ALASKA. <AEIC>. ML 3.4 (AEIC), 3.3 (PGC). 29 19 51 16.96 34.831 S 70.909 W 106 8 CHILE-ARGENTINA BORDER REGION. <GUC>. 29 19 54 35.5 28.893 N 131.163 E 33 N 4.7 4.6 1.1 53 SOUTHEAST OF RYUKYU ISLANDS 29 20 12 35.6* 51.466 N 16.057 E 5 G 0.7 8 POLAND. ML 3.0 (VIE), 2.4 (CLL). 29 20 27 14.6? 20.52 S 167.84 E 33 N 4.4 1.5 10 LOYALTY ISLANDS 29 20 29 54.0* 33.695 N 132.383 E 61 ? 1.1 6 SHIKOKU, JAPAN. Felt (I JMA) in western Ehime Prefecture.

Also felt (I JMA) in eastern Yamaguchi Prefecture, Honshu.29 20 36 26.7* 5.488 S 146.816 E 154 4.2 0.9 15 EASTERN NEW GUINEA REG., P.N.G.29 21 09 45.56 48.176 N 121.319 W 2 54 WASHINGTON. <SEA-P>. MD 2.6 (SEA). ML 2.5 (PGC). 29 21 44 24.96 32.378 S 71.363 W 34 11 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.4 (GUC). 29 22 14 07.46 42.620 N 0.750 E 2 G 10 PYRENEES. <STR>. ML 2.3 (STR), 2.0 (LOG).29 23 00 53.86 43.946 N 7.608 E 11 12 NEAR SOUTH COAST OF FRANCE. <GEN>. ML 2.0 (GEN), 1.6 (LOG). 29 23 25 15.06 44.569 N 6.941 E 5 19 FRANCE. <GEN>. ML 2.4 (GEN), 1.7 (LOG). 29 23 42 51.36 62.605 N 149.006 W 58 38 CENTRAL ALASKA. <AEIC>. ML 2.7 (AEIC).29 23 47 39.06 59.778 N 152.950 W 105 78 SOUTHERN ALASKA. <AEIC>.30 00 36 58.2* 7.192 S 128.958 E 160 ? 4.3 1.1 12 BANDA SEA30 00 51 34.16 55.070 N 7.370 W 9 5 UNITED KINGDOM. <BGS>. ML 1.7 (BGS) . Felt (III) in the

epicentral area.30 01 37 23.3? 7.19 N 72.76 W 125 ? 4.1 1.4 8 NORTHERN COLOMBIA30 01 47 07.56 35.797 N 32.058 E 15 6 CYPRUS REGION. <CSS>. ML 3.3 (CSS).30 01 48 08.4? 2.20 N 126.87 E 33 N 4.5 0.7 8 NORTHERN MOLUCCA SEA30 01 49 53.3* 37.722 N 142.066 E 82 ? 0.7 15 OFF EAST COAST OF HONSHU, JAPAN. Felt (I JMA) in eastern

Fukushima Prefecture.30 02 20 08.3? 6.22 N 127.07 E 200 G 4.1 1.5 11 PHILIPPINE ISLANDS REGION30 02 30 40.86 31.708 S 69.760 W 144 10 SAN JUAN PROVINCE, ARGENTINA. <GUC>.30 03 30 38.8 44.181 N 20.071 E 14 5.0 4.8 0.9 209 NORTHWESTERN BALKAN REGION. Mw 5.4 (HRV). MD 5.3 (PDG). ML

5.1 (VIE). Felt at Belgrade and Novi Sad, Yugoslavia. Also felt in Montenegro.

Centroid, Moment Tensor (HRV): Centroid origin time 03:30:46.7; Lat 43.75 N; Lon 20.20 E; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**17 Nm): (T) Val=1.32, Plg=28, Azm=135; (N) Val=0.25, Plg=48, Aza=261; (P) Val=-1.57, Plg=28, Azm=28; Best double couple: Mo=1.4*10**17 Nm; NP1: Strike=171, Dip=48, Slip=-180; NP2 : Strike=81, Dip=90, Slip=-42.

30 03 39 33.1* 25.409 N 94.134 E 33 N 4.3 1.2 12 MYANMAR-INDIA BORDER REGION30 03 53 08.1? 13.77 N 145.05 E 136 * 1.4 12 MARIANA ISLANDS30 04 03 10.5* 37.633 N 142.415 E 33 N 1.2 9 OFF EAST COAST OF HONSHU, JAPAN30 04 20 02.5 27.837 N 53.538 E 36 4.9 4.8 0.9 208 SOUTHERN IRAN. Mw 5.2 (HRV). .Several older buildings damaged

at Khonj. Felt at Jahrom.Centroid, Moment Tensor (HRV): Centroid origin time 04:20:12.5; Lat 27.74 N; Lon 52.96 E; Dep 44.9; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm): (T) Val=6.25, Plg=56, Azm=293; (N) Val=-0.57, Plg=34, Azr.= 110;

APR 1999

VCYJ 30 04 22 24.1& 18.060 N|TOFT 30 04 42 24.4* 35.703 Np:QC 30 05 11 08-5 28.855 N

VDDM 30 16 42 09.2t 44.420 N VCVF 30 16 44 14.3* 53.720 N VCWC 30 16 47 16.1& 35.304 S VCWK 30 16 56 55.3& 61.270 N VCWD 30 17 15 3S.4& 33.418 S VCWE 30 17 35 28.3& 35.299 S VCWF 30 18 30 59.S& 33.591 S VDGR 30 18 42 49.2* 6.832 S

WWW Other magnitude and VCQB 30 18 52 04.9 6.657 N

WWW Other magnitude and VCQD 30 19 28 48.9 31.646 S

<P) Val=-5.69, Plg=l, Azm=201; Best double couple: Mo=6.0*10**16 Nm; NP1: Strike=321, Dip=53, Slip=134; NP2: Strike=82, Dip=55. Slip=47.

66.850 W 1 5 PUERTO RICO REGION. <MPR>. MD 2.1 (MPR). 141.745 E 33 N 4.0 1.5 14 NEAR EAST COAST OF HONSHU, JAPAN 131.177 E 33 N 5.0 5.3 1.3 86 SOUTHEAST OF RYUKYU ISLANDS. Mw 5.2 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 05:11:08.0; Lat 28.83 N; Lon 131.37 E; Dep 27.2; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm): (T) Val=7.01, Plg=29, Azm=270; (N) Val=0.87, Plg=12, Azm=173; <P) Val=-7.88, Plg=58, Azm=64; Best double couple: Mo=7.4*10**16 Nm; NP1: Strike=30, Dip=19, Slip=-51; NP2: Strike=170, Dip=75, Slip=-102.

LOYALTY ISLANDSSOUTHERN ALASKA. <AEIC>.TAIWAN REGION. Felt (III JMA) in the epicentral area, (II JMA) at I-lan and (I JMA) at Hua-lien. Felt in many parts of northern Taiwan.

AFGHANISTAN-TAJIKISTAN BORD REG.NORTHERN COLOMBIASAMOA ISLANDS REGIONEASTER ISLAND REGIONNORTHWESTERN BALKAN REGION. ML 4.6 (TRI), 4.4 (VIE), 4.2 (ROM). MD 4.3 (PDG).

SOUTH OF MARIANA ISLANDSPORTUGAL. mbLg 3.8 (MOD). Felt (III) at Caceres, Don Benito and Valencia de Alcantara, Spain.

NORTHWESTERN BALKAN REGION. ML 1.2 (LJU).CARLSBERG RIDGEEASTERN HONSHU, JAPAN. Felt (I JMA) in Iwate Prefecture.SOUTHERN CALIFORNIA. <PAS-P>. ML 3.0 (PAS).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.5 (GUC).WINDWARD ISLANDS. <FDF>. MD 2.5 (FDF).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.8 (GUC).

CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.5 (GUC).PUERTO RICO REGION. <MPR>. MD 2.5 (MPR).KODIAK ISLAND REGION. <AEIC>. ML 3.0 (AEIC).TONGA ISLANDSGREECE. <ATH>. MD 3.0 (ATH).CHILE-ARGENTINA BORDER REGION. <GUC>.IRAN-IRAQ BORDER REGION. Forty-one houses damaged at Baneh, Iran.

IRAN-IRAQ BORDER REGIONSAN JUAN PROVINCE, ARGENTINA. <GUC>.UNIMAK ISLAND REGION. Mw 5.0 (HRV). ML 4.4 (PMR). Felt strongly at False Pass.

Centroid, Moment Tensor (HRV): Centroid origin time 16:35:34.5; Lat 53.48 N; Lon 164.11 W; Dep 52.4 Fix; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm): (T) Val=3.39, Plg=8, Azm=50; (N) Val=0.43, Plg=77, Azm=178; (P) Val=-3.83, Plg=10, Azm=319; Best double couple: Mo=3.6*10**16 Nm; NP1: Strike=95, Dip=77, Slip=-179; NP2: Strike=4, Dip=89, Slip=-13.

6 NORTHERN ITALY. <GEN>. ML 1.8 (GEN). 13 UNIMAK ISLAND REGION. ML 3.3 (AEIC). 12 CENTRAL CHILE. <GUC>. MD 3.3 (GUC). 53 SOUTHERN ALASKA. <AEIC>.11 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.5 (GUC).12 CENTRAL CHILE. <GUC>. MD 3.4 (GUC). 9 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.7 (GUC).

13 SUNDA STRAIT

VCQE 30VCVD 30VCQF 30

VDFV 30VCPW 30VDFX 30VDFY 30VCPY 30

VCPZ 30VCQG 30

VKLR 30VDGE 30VDGF 30VKND 30VCVX 30VKJM 30VCVY 30

05 2705 3605 44

06 2807 0007 2307 3407 41

07 5109 00

09 1709 2809 3510 0911 3713 1013 14

57.35.40.

35.41.55.02.01.

37.32.

25.19.12.50.14.27.28.

4* 202& 611* 24

5 372 67? 146? 269 44

9 128 39

5? 469? 28* 393t 337& 341& 147& 34

.031

.541

.791

.531

.848

.99

.72

.192

.996

.769

.33

.40

.646

.015

.585

.988

.101

SNN

NNSSN

NN

NSNNSNS

168152122

7173

17511420

1459

1667

141115706070

.208 E

.261 W

.039 E

.928 E

.052 W

.10 W

.91 W

.103 E

.216 E

.014 W

.10 E

.84 E

.675 E

.582 W

.981 W

.446 W

.127 W

1413472 *

124 *162 D33 N10 G10 G

33 N10 G

5 G10 G

112 ?9

77327

4.3

3.7

4.44.3

3.94.2

4.83.6

0.9

1.0

0.81.11.00.70.7

0.90.9

0.50.40.9

194112

4261107

91

3753

56

148

134

14WWW Previous event is close.

VCVZ 30VCYK 30VCVG 30VDGK 30VKHT 30VCWA 30VDGN 30

VDGP 30VCWB 30VCQA 30

13 1513 2313 5313 5513 5714 2014 54

15 0815 5816 35

38.52.35.19.33.25.22.

33.29.35.

8& 343& 187t 580? 190& 394& 340 35

0* 358& 319 53

.104

.150

.733

.57

.240

.085

.968

.766

.800

.846

SNNSNSN

NSN

7066

152175217045

4569

164

.111 W

.090 W

.886 W

.79 W

.840 E

.096 W

.653 E

.526 E

.681 W

.125 W

51359

250 G56

33 N

33 N14052

4.4

4.6

4.4

4.9

1.2

0.9

0.8

0.8

107

421459

42

2712

103

7.423 E164.008 W71.047 W

151.937 W71.064 W71.686 W71.048 W105.592 E

1.01533 N 106 100 68 60 6533 N 4.4

GS Ms differ by more than 0.582.359 W 10 G 4.4 4.1 1.1

GS Ms differ by more than 0.5 71.681 W 52 5.1 5.0

1.3

34 SOUTH OF PANAMA. MD 4.7 (CASC) , 4.5 (UPA) .

1.1 103

VDGT 30VCWJ 30VDGU 30VCYN 30

WWWVDGV 30VCYP 30VCXM 30VDGX 30VDKX 30VDGY 30mCTE 30 KMV 30^DHA . 0VDHD _,GVDCY 30VKJN 30

19 3820 1620 1920 20Zone

20 3020 3920 5921 1021 3421 4622 0322 32.2 40^3 2323 3223 53

06.31.02.13.is

13.53.08.42.22.16.25.06.12.24.21.48.

1? 29.7& 53.9* 24.5& 31.

.00 N,396 N330 N,714 S

131.151.125.71.

nearly aseismic!1? 48.6& 31.9& 44.7? 204& 63.3% 36,1 447% 454* 188 259& 532& 14

.69 S

.692 S

.045 N. 14 5.506 N.374 N.212 N'.459 N.441 S.608 N. 3C5 N.937 N

120.71.8.

176.150.71.20.26.

168.100.167.60.

49 E447 W000 E710 W

( 16.86 E765 W077 E36 W910 W716 E138 E206 E615 E280 E145 W496 W

33 N9

33 N26

4 YEARS10 G327

250 G78

262 *10 G

120 G13942 *9834

3.7

4.1

per4.0

4.0

4.34.5

1.

0.

event )1.

1

00010

.4

,9

.5

.5

.8

.8

.5

.0

.8

9451211

87

80103111157

1150104

NEAR COAST OF CENTRAL CHILE. Mw 5.6 (HRV). MD 5.0 (GUC). Felt (V) at Canela; (IV) in the La Serena-Quintero area and at Valparaiso and Vina del Mar; (III) in the Concon-San Felipe-Santiago area and at Copiapo; (II) at Casablanca, Guardia Vieja and Rancagua.Centroid, Moment Tensor (HRV): Centroid origin time 19:28:50.3; Lat 31.90 S; Lon 72.27 W; Dep 32.1; Half- duration 1.4 sec; Principal axes (scale 10**17 Nm): (T) Val=2.18, Plg=73, Azm=107; (N) Val=0.53, Plg=4, Azm=3; (P) Val=-2.70, Plg=16, Azm=272; Best double couple: Mo=2.4*10**17 Nm; NP1: Strike=355, Dip=29, Slip=81; NP2: Strike=185, Dip=61, Slip=95.

SOUTHEAST OF RYUKYU ISLANDSCENTRAL ALASKA. <AEIC>. ML 3.3 (AEIC), 3.4 (PMR).SOUTHWESTERN RYUKYU ISLANDSNEAR COAST OF CENTRAL CHILE. <GUC>. MD 4.2 (GUC).

SOUTH OF AUSTRALIANEAR COAST OF CENTRAL CHILE. <GUC>. MD 3NORTHERN ITALY. <GEN>. ML 3.7 (GEN), 3.4FIJI ISLANDS REGIONCENTRAL ALASKA. <AEIC>.AFGHANISTAN-TAJIKISTAN BORD REG.NORTHWESTERN BALKAN REGION. MD 2.7 (PDG)ROMANIAVANUATU ISLANDSYUNNAN, CHINAFOX ISLANDS, ALEUTIAN ISLANDS. <A£IC>.WINDWARD ISLANDS. <FDF> . MD 2.3 (?DF).

.6 (GUC). (STR), 3.4 (LDG).

Compiled by John J. Bellini, Pamela J. Benfield, Don L. Blakeman, Charles G. Bufe, George L. Choy, Stuart K. Koyanagi, Brian C. Lassige, Alena L. Leeds, John H. Minsch, Waverly J. Person, Bruce W. Presgrave, Stuart A. Sipkin, William K. Smith, Trina F. Vithayathil and Madeleine D. Zirbes.

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USGSscience for a changing world

Pre

U.S. Department of the Interior U.S. Geological Survey

yi ofMonthly Listing

National Earthquake Information CenterMAY 1999

ORIGIN TIMEUTC

DAY HR MN SEC

GEOGRAPHICCOORDINATES

LAT LONG

DEPTH MAGNITUDE SD NO.GS STA

MB Msz USED

REGION, CONTRIBUTED MAGNITUDES AND COMMENTS

01 01010101010101010101010101

I01010101010101010101010101010101010101010101010101010101010101010101010101£1

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00 00000000000102020203030303

04 04 04040505060606070707080808080809101010111112121212131313131313131415151515151518 18181920

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TURKEY. <ISK>. MD 3.1 (ISK).TURKEY. <ISK>. MD 2.8 (ISK).TURKEY. <ISK>. MD 2.9 (ISK).SOUTHEAST OF SHIKOKU, JAPANGREECE. <ATH>. MD 3.1 (ATH).CHILE-ARGENTINA BORDER REGIONSOUTHERN ALASKA. <AEIC>. ML 3AFGHANISTAN-TAJIKISTAN BORD REG.PYRENEES. <STR>. ML 2.3 (STR), 2.1 (LDG)SOUTH OF KERMADEC ISLANDSRYUKYU ISLANDSSOUTHERN ALASKA. <AEIC>.PUERTO RICO REGION. <MPR>. MD 2.5 (MPR).GERMANY. <FBB>. ML 1.7 (FBB), 1.6 (UCC).event in the Lorraine region, France.

MARIANA ISLANDSCHILE-ARGENTINA BORDER REGION. <GUC>. NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.4 (GUC). MINAHASSA PENINSULA, SULAWESI NORTHERN ITALY. ML 3.0 (LDG), 2.9 (STR). CHILE-ARGENTINA BORDER REGION. <GUC>. MD 4.0 (GUC). KENAI PENINSULA, ALASKA. <AEIC>. CHILE-ARGENTINA BORDER REGION. <GUC>. SOUTHERN BOLIVIA TURKEY. <ISK>. MD 3 TURKEY. <ISK>. MD 3 TURKEY. <ISK>. MD 3 OFF COAST OF OREGON TURKEY. <ISK>. MD 2.7 (ISK). HINDU RUSH REGION, AFGHANISTAN MONA PASSAGE. <MPR>. MD 3.0 (MPR) TURKEY. <rSK>. MD 3.2 (ISK). SOUTH OF FIJI ISLANDS TURKEY. <ISK>. MD 2.9 (ISK). NEAR COAST OF CENTRAL CHILE NEAR COAST OF CENTRAL CHILE KURIL ISLANDSFRANCE. <LDG>. ML 2.6 (STR), 2.5 (LDG) SOUTHERN CHILENEAR EAST COAST OF HONSHU, JAPAN NORTHERN ITALY. <GEN>. ML 2.7 (GEN), 2 NORTHWESTERN BALKAN REGION. <PDG>. ML NORTH OF SEVERNAYA ZEMLYA OFF W COAST OF NORTHERN SUMATERA TURKEY. MD 3.7 (ATH).SOUTHERN ALASKA. <AEIC>. ML 2.6 (AEIC). ALASKA PENINSULA. <AEIC>. NORTHERN XINJIANG, CHINA ALASKA PENINSULA. <AEIC>. TURKEY. X2 4.0 (ISK).NORTHWESTERN BALKAN REGION. ML 2.4 (VIE) KURIL ISLANDSMONA PASSAGE. <MPR>. MD 3.6 NEAR COAST OF CENTRAL CHILE NORTHERN ITALY. <GEN>. ML 2 OFF COAST OF CENTRAL CHILE. NORTHERN TERRITORY, AUSTRALIA CENTRAL Al^SKA. <AEIC>. ML 3.1 (AEIC) NORTHERN ITALY. <GEN>. ML 1.7 (GEN). KURIL ISLANDS TURKEY. <ISK>. MD 2.7 (ISK).

<GUC>. <GUC>. MD 3.7 (GUC)

4 (LDG), 2.3 (STR) 1.3 (PDG).

(MPR).. <G'JC>. MD 3.4 (GUC) . .5 (GEN).<GUC>. MD 3.4 (GUC).

3.4 (PMR).

HAY 1995 PAGE 2

01 21 04 18.8& 63.821 N 148,534 W 96 32 CENTRAL ALASKA. <AEIC>.01 ' 21 2C 41.7* 46.232 N 12.942 E 10 G 1.1 7 NORTHERN ITALY. ML 2 .3 (VIZ) .01 <.<. j , 54.2& 43.497 N 17.200 E 4 17 NORTHWESTERN BALKAN REGION'. <PDG>. ML 2 .0 (TR-;. :- 2.8

(PDG).01 22 41 54.2 46.030 N 14.769 E 10 G 0.8 8 NORTHWESTERN BALKAN ?^G10N. ML 2 .1 ('."£: . Cl 22 45 17.9 12.237 N 121.721 E 33 N 4.8 4.5 1.5 48 MINDORO, PHILIPPINE ISLANZS 01 22 52 I8.1& 32.698 S 71.763 W 15 13 NEAR COAST OF CENTRAL CHILE. <GUC>. XT 2.7 (QUO .01 23 53 35.4% 36.613 N 70.894 E 187 ? 0.8 10 HINDU RUSH REGION, AFGHANISTAN02 00 1" 18.5* 35.099 S 78.600 E 10 G 4.9 0.7 12 MID-INDIAN RIDGE. Xv 5.1 ;KRV).

Centroid, Moment Ter-sor (HHV) : Centrcid origin tine 00:17:24.9; Lat 35.18 S; Lon 78.64 E: Dep 15.0 Fix; duration 1.1 sec; Principal axes (scale 10**16 Nisi : Val=5.51, Plg=0, Az==106; (N) Val=-1.23, Plg=90, Azr.= 13: ; (P) Val=-4.13, Plg=C, Az==16; Best dcuile couple: Mo=4.8*10**16 Nm; 1CP1: Strike=151, r:ip=90, Slip=-l=C; 117 2: Strike=241, Dip=90, Slip=0.

02 00 2" 40.3 47.710 N 16.062 E 10 G 1.4 31 AUSTRIA. ML 3.7 (GR?), 3.4 (VIE). Fell (IV) at Pitten. 02 00 3S 49.8* 5.467 S 35.806 E 10 G 4.1 1.1 9 TANZANIA02 00 4C 46.3* 2.299 S 134.368 E 33 N 1.1 7 IRIAN JAYA REGION, INDONESIA 02 01 0~ 59.36 33.956 N 116.319 W 8 44 SOUTHERN CALIFORNIA. <PAS-P>. ML 3.7 (PAS). Felt in the Palm

Springs area.02 02 12 18.7? 28.55 N 51.96 E 33 N 3.9 1.1 9 SOUTHERN IRAN 02 02 IS 19.26 36.081 N 29.157 E 33 N 5 TURKEY. <ISK>. MD 3.1 (ISK) . 02 03 1C 53.7* 17.850 S 174.999 W 33 N 4.1 0.6 13 TONGA ISLANDS02 04 45 20.2& 34.490 S 70.294 W 143 8 CHILE-ARGENTINA BORDER REGION. <GUC>.02 04 45 44.2 47.687 N 13.746 E 10 G 1.1 31 AUSTRIA. ML 3.2 (GRF), 3.2 (LOG), 3.2 (VIE), 3.1 (FUR) . 02 05 OS 59.66 36.510 N 3.170 W 1 8 STRAIT OF GIBRALTAR. <MDD>. mbLg 1.7 (HDD). 02 05 42 24.56 35.255 S 71.347 W 96 8 CENTRAL CHILE. <GUC>.02 05 55 24.06 63.710 N 150.420 W 38 40 CENTRAL ALASKA. <AEIC>. ML 2.8 (AEIC) , 3.1 (PMR) . 02 05 55 45.26 38.002 N 123.513 WO 8 NEAR COAST OF NORTHERN CALIF. <GM-P>. KD 3.1 (GM) . ML 2 . 1

(BRK).02 06 2= 15.06 39.629 N 29.449 E 12 4 TURKEY. <ISK>. MD 2.6 (ISK). 02 07 01 27.1* 18.422 S 168.588 E 122 * 4.1 1.1 15 VANUATU ISLANDS 02 07 16 49.26 36.560 N 26.460 E 142 13 DODECANESE ISLANDS. <ATH>.02 07 37 04.76 35.500 N 4.040 W 5 5 STRAIT OF GIBRALTAR. <MDD>. mbLg 2.0 (MOD). 02 07 37 30.1* 8.880 S 119.563 E 152 * 3.8 0.7 11 FLORES REGION, INDONESIA 02 08 03 45.0& 48.300 N 9.040 E 12 29 GERMANY. <FBB>. ML 2.5 (LDG), 2.3 (FBB) , 2.2 (STR). 2.2

(VIE).02 08 11 05.3 8.742 N 39.656 W 10 G 4.6 0.9 74 CENTRAL MID-ATLANTIC RIDGE 02 08 15 26.36 40.290 N 121.383 W 7 13 NORTHERN CALIFORNIA. <GM-?>. MD 2.8 (GM) . 02 08 5-4 36.46 18.616 N 101.625 W 70 6 GUERRERO, MEXICO. <UNM>. MD 3.9 (UNM) . 02 09 3~ 43.2? 31.11 S 71.86 W 10 G 0.4 14 NEAR COAST OF CENTRAL CHILE. MD 4.1 (GUC).02 09 41 30.06 60.170 N 150.990 W 57 94 KENAI PENINSULA, ALASKA. <AEIC>. ML 3.2 (AEIC), 3.3 (PKR) . 02 09 23 45.1& 31.198 S 71.906 W 21 12 NEAR COAST OF CENTRAL CHILE. <GUC>. MO 4.0 (GUC) . 02 10 2: 33.26 60.020 N 152.680 W 103 41 SOUTHERN ALASKA. <AEIC>.02 10 45 58.5* 31-849 S 68.501 W 150 G 0.9 16 SAN JUAN PROVINCE, ARGENTINA. MD 3.6 ;GUC). 02 10 52 37.3 31.485 N 49.639 E 33 N 4.2 0.7 32 WESTERN IRAN02 10 59 02.96 39.331 N 27.807 E 5 5 TURKEY. <ISK>. MD 2.7 (ISK). 02 11 01 47.2? 20.24 S 178.73 W 600 G 4.1 0.8 11 FIJI ISLANDS REGION02 11 13 26.5* 11.573 N 87.434 W 51 * 4.2 1.4 15 NEAR COAST OF NICARAGUA. MD 4.4 (CASC) . 02 11 25 09.0? 11.52 N 87.40 W 33 N 4.3 0.7 7 NEAR COAST OF NICARAGUA 02 11 49 27.6* 6.379 S 128.334 E 385 * 3.9 1.1 22 BANDA SEA02 12 01 15.9& 37.710 N 2.210 W 1 9 SPAIN. <MDD>. mbLg 1.8 (HDD). 02 12 03 07.66 40.910 N 29.270 E 5 5 TURKEY. <ISK>. MD 2.6 (ISK). 02 13 02 42.4* 20.416 S 178.670 W 616 ? 4-3 1.0 - 34 FIJI ISLANDS REGION02 13 40 59.16 31.692 S 71.831 W 23 12 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC). 02 14 C5 19.76 10.850 N 62.325 W 67 6 NEAR COAST OF VENEZUELA. <TRN>. MD 3.5 (TRN) . 02 14 25 00.0 56.806 N 34.295 W 10 G 4-8 4.4 0.8 121 NORTH ATLANTIC OCEAN 02 14 27 59.3% 56.776 N 34.082 W 10 G 0.7 6 NORTH ATLANTIC OCEAN 02 14 29 01.5* 56.753 N 34.237 W 10 G 4.7 1.4 17 NORTH ATLANTIC OCEAN 02 14 44 34.36 46.600 N 2.700 E 16 8 FRANCE. <LDG>. ML 1.9 (LDG). 02 15 15 41.86 44.783 N 6.750 E 13 16 FRANCE. <GEN>. ML 2.1 (GEN), 1.6 (LDG). 02 15 25 41.0* 10.678 N 126.028 E 33 N 4.3 1.2 18 PHILIPPINE ISLANDS REGION 02 16 13 50.5 56.794 N 34.268 W 10 G 5.3 5.6 1.0 304 NORTH ATLANTIC OCEAN. Mw 5.6 (HRV), 5.5 (GS) .

Moment Tensor (GS): Dep 7; Principal axes (scale 1C**17 Nm): (T) Val=1.86, Plg=5, Azm=108; (N) Val=0.30, Plg=l, Az==18; (P) Val=-2.16, Plg=85, Azm=282; Best double couple: Mo=2.0*10**17 Nm; NP1: Strike=199, Dip=40, Slip=-£9; N?2: Strike=18, Dip=50, Slip=-91.

Centroid, Moment Tensor (HRV): Centroid origin tiae 16:13:56.0; Lat 56.96 N; Lon 34.10 W; Dep 15.0 Fix; Half- duration 1.6 sec; Principal axes (scale 10**17 Nz; : (T! Val=2.65, Plg=l, Azm=108; (N) Val=O.S8, Plg=7, Az==13; (P) Val=-3.33, Plg=83, Azm=203; Best double couple: Mo=3.0*10**17 Nm; NP1: Strike=205, Eip=45, Slip=-8D; :,T>2: Strike=ll, Dip=46, Slip=-100.

02 16 1= 51.9% 56.595 N 34.378 W 10 G 0.9 9 NORTH ATLANTIC OCEAN02 17 02 26.36 34.094 S 70.114 W 5 12 CHILE-ARGENTINA BORDER REGION. <GUC>. 02 17 13 24.7* 31.786 S 71.860 W 33 N 1.2 21 NEAR COAST OF CENTRAL CHILE. MD 4.2 (GUC) . 02 17 43 14.2* 4.775 N 76.415 W 123 ? 4.1 1.0 17 COLOMBIA02 17 55 49.4 42.089 N 142.411 E 70 D 4.2 1.0 44 HOKKAIDO, JAPAN REGION. Felt (II JMA) in the Shizunai area. 02 18 13 39.56 38.310 N 1.930 W 0 G 14 SPAIN. <MDD>. mbLg 2.4 (MDD) . 02 18 2£ 17.4* 85.595 N 86.257 E 10 G 4.1 1.5 11 NORTH OF SEVERNAYA ZEMLYA 02 19 E5 05.4* 28.664 N 131.438 E 33 N 4.2 1.4 18 SOUTHEAST OF RYUKYU ISLANDS 02 20 c: 19.3* 35.867 N 43.231 E 33 N 3.8 0.9 15 IRAQ 02 20 2£ 49.6* 9.565 S 74.950 W 153 * 4.2 1.2 31 CENTRAL PERU 02 20 2 = 26.8 29.083 N 131.212 E 33 N 5.1 4.7 1.0 142 SOUTHEAST OF RYUKYV ISLANDS. Mw 5.1 f =RV).

Centroid, Moment Tensor (HRV) : Cer.trcid origin ti. s 20:39:24.8; Lat 28.88 N; Lsn 131.23 ;.; Dep 26.3; H=l£- duration 1.0 sec; Principal axes (scale 10**16 Jfc : .7 Val=4.82, Plg=35, Azm=297 ; (N) Val=l.=l. Plg=35, Ar=:=l~5; (P) Val=-6.63, Plg=35, Az:n=57; Best double couole: Mo=5.7*10**16 Nm; NP1: Strike=87, Dip=35, Slip=l; K?2:

MAY 1999

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.270

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Strike=357, Dip=90, Slip=125.FRANCE. <LDG>. ML 2.2 (LDG), 2.1 (STR)BANDA SEAKURIL ISLANDSFRANCE. <LDG>. MLALASKA PENINSULA.SPAIN. <MDD>. mbLg 2.3 (MDD).GREECE. <ATH>. MD 2.9 (ATH).TURKEY. <ISK>. MD 2.8 (ISK).STRAIT OF GIBRALTAR. <MDD>.BANDA SEAPOLAND. ML 2.7 (VIE).CHILE-ARGENTINA BORDER REGION.CHILE-ARGENTINA BORDER REGION.CHILE-ARGENTINA BORDER REGION.NORTH OF SEVERNAYA ZEMLYATURKEY. <ISK>. MD 2.8 (ISK).SOUTHERN SUMATERA, INDONESIA.Centroid, Moment Tensor (HRV) 02:24:03.8; Lat 6.01 S; Lon 102.71 E; Dep 51.1; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm}: (T> Val=4.32, Plg=67, Azm=266; (N) Val=0.35, Plg=22, Azm=lCl; (P) Val=-4.67, Plg=6, Azm=9; Best double couple: Mo=4.5*10**16 Nm; NP1: Strike=77, Dip=44, Slip=58; N?2: Strike=298, Dip=54, Slip=117.

<GUC>. <GUC>. <GUC>.

(GUC). (GUC). (GUC).

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NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3 . 6 (GUC). CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.2 (GM). JC. 3.3(BRK).

NORTHERN MID-ATLANTIC RIDGETURKEY. <ISK>. MD 2.6 (ISK).NORTH ATLANTIC OCEANCENTRAL ALASKA. <AEIC>.TAIWANNEAR COAST OF GUERRERO, MEXICO. <UNM>. MD 4 . 0 (UNM).VANUATU ISLANDSFRANCE. <LDG>. ML 3 . 5 (LDG).OFF EAST COAST OF KAMCHATKAKERMADEC ISLANDS REGIONTURKEY. <ISK>. MD 2 . 8 (ISK).TURKEY. <ISK>. MD 2 . 8 (ISK).TURKEY. <ISK>. MD 3.3 (ISK).NEAR COAST OF CHIAPAS, MEXICO. MD 4 . 5 (UNM) .NORTHERN MOLUCCA SEAFRANCE. <LDG>. ML 3.0 (LDG), 2.9 (STR).SPAIN. <MDD>. mbLg 2.3 (MDD).SPAIN. <MDD>. mbLg 2.0 (MDD).SPAIN. <MDD>. mbLg 2.2 (MDD).HALMAHERA, INDONESIACENTRAL ALASKA. ML 2 . 8 (PMR) .RYUKYU ISLANDSGREECE. <ATH>. MD 3 . 1 (ATH).EASTERN HONSHU, JAPANSOUTH OF HONSHU, JAPANNEAR COAST OF CENTRAL CHILE. <GUC> . MD 3 . 3 (GUC) .NORTHWESTERN BALKAN REGION. ML 2 . 0 (VIE), 1.4 (LJU) .WESTERN CAROLINE ISLANDSNORTHWESTERN BALKAN REGION. <PDG>. MD 1 . 5 (PDG) .OFF COAST OF CALIFORNIA. <PAS-P>. ML 3.7 (PAS) .FIJI ISLANDS REGIONSOUTHERN CHILEGREECE. <ATH>. ML 3 . 0 (ATH).GREECE. <ATH>. MD 3 . 1 (ATH).TURKEY. <ISK>. MD 3 . 8 (ATH), 3.4 (ISK).TURKEY. <ISK>. MD 3 . 7 (ATH), 3.3 (ISK).NEAR NORTH COAST OF IRIAN JAYAIRIAN JAYA REGION, INDONESIA. Mw 5.3 (HRV). Felt (III: ;=Biak.

Centroid, Moment Tensor (HRV) : Centroid origin time17:55:29.4; Lat 1.07 S; Lon 137.27 E; Dep 34.5; Half-duration 1.1 sec; Principal axes (scale 10**17 Nm) : ,T,Val=0.92, Plg=64, Azm=211; (N) Val=0.25, Plg=4 , Azm=113;(P) Val=-1.16, Plg=26, Azm=21; Best double couple:Mo=1.0*10**17 Nm; NP1: Strike=101, Dip=19, Slip=78; ir=2 :Strike=294, Dip=71, Slip=94.

TURKEY. <ATH>. MD 3 . 7 (ATH).ROMANIABANDA SEAPYRENEES. <LDG>. ML 2 . 1 (LDG).SOUTH OF AUSTRALIAALASKA PENINSULA. <AEIC> . ML 2.7 (AEIC) .LOYALTY ISLANDSVANUATU ISLANDSCHIAPAS, MEXICO. <UNM> . MD 4 . 0 (UNM).VANUATU ISLANDSSOUTHERN ALASKA. <AEIC> .LAKE BAYKAL REGION, RUSSIA. Felt (V) at Verkhnyaya Z a :_=>.»,(IV) at Kichera and (III) at Severobaykalsk.

LAKE BAYKAL REGION, RUSSIA. Felt: (V) at Verkhnyaya Zs.--^s.= ,(IV) at Kichera and (III) at Severobaykalsk.

LAKE BAYKAL REGION, RUSSIA. Fei- (III) at Kichera ar.zVerkhnyaya Zaimka .CHILE -ARGENTINA BORDER REGION. <GUC> . MD 4 . 2 (GUC).CHILE-ARGENTINA BORDER REGION. <GUC> . MD 3 . 4 (GUC).

MAY 1999 PAGE 4

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FRANCE. <LDG>. ML 1.4 (LOG).VANUATU ISLANDSPUERTO RICO'REGION. <MPR>. MD 2.2 (MPR).VANUATU ISLANDSSOUTH OF ALASKA. <AEIC>. ML 2.9 (AEIC).FOX ISLANDS, ALEUTIAN ISLANDS. <AEIC>. ML 3.6 (AEIC)NORTHERN SUMATERA, INDONESIAFOX ISLANDS, ALEUTIAN ISLANDS.GREECE-ALBANIA BORDER REGION.SEA OF OKHOTSKSOUTHEASTERN ALASKA. <AEIC>. ML 2.7 (AEIC), 2.7 (PGC).NEAR EAST COAST OF HONSHU, JAPANNEAR COAST OF CENTRAL CHILE. <GUC>.TURKEY. <ISK>. MD 2.6 (ISK).TURKEY. <ISK>. MD 2.7 (ISK).NORTH ISLAND, NEW ZEALAND. <WEL>.NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.6 (GUC).TURKEY. <ISK>. MD 2.7 (ISK).ALASKA PENINSULA. <AEIC>. ML 2.5 (AEIC).CHILE-BOLIVIA BORDER REGIONKURIL ISLANDSCENTRAL ALASKA. <AEIC>.NICARAGUA. MD 4.4 (CASC).NEAR COAST OF NICARAGUA. MD 4.5 (CASC).FIJI ISLANDS REGIONGUATEMALA. MD 4.7 (UNM), 4.6 (CASC).KERMADEC ISLANDS REGION. Felt on Raoul.MINAHASSA PENINSULA, SULAWESINEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.5 (GUC).FRANCE. <STR>. ML 2.3 (STR) .TAJIKISTANROMANIACHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.3 (GUC).GREECE. <ATH>. ML 3.2 (ATH).NORTHEAST OF TAIWANGREECE. <ATH>. MD 3.2 (ATH).AFGHANISTAN-TAJIKISTAN BORD REG.NEAR WEST COAST OF HONSHU, JAPANNORTHERN ITALY. <LDG>. ML 2.0 (LOG), 1.9 (STR).DODECANESE ISLANDS. <ATH>. MD 4.0

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OFF COAST OF CENTRAL AMERICA MONA PASSAGE. <MPR>. MD 2.8 (MPR). FRANCS. ML 2.9 (LOG), 2.9 (STR). OFF EAST COAST OF KAMCHATKASOUTHERN CALIFORNIA. <PAS-P>. ML 3.6 (PAS). NEAR COAST OF CENTRAL CHILE. <GUC>. OFF COAST OF CENTRAL AMERICA. MD 4.3 (CASC) . NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.1 (GUC). KERMADEC ISLANDS, NEW ZEALAND SPAIN. mbLg 2.4 (MOD). TURKEY. MD 3.1 (ISK). TURKEY. MD 3.0 (ISK). SOUTH OF FIJI ISLANDS SOUTHERN PACIFIC OCEAN NEAR COAST OF NORTHERN CHILE SOUTHERN GREECE. MD 3.2 (ATH). PUERTO RICO REGION. <MPR>. MD 2.2 (MPR). LAKE BAYKAL REGION, RUSSIA CENTRAL CHILE. <GUC>. TURKEY. MD 2.8 (ISK).PUERTO RICO REGION. <MPR>. MD 2.3 (MPR). KENAI PENINSULA, ALASKA. Mw 5.8 (GS) , 5.8 (HRV). Me 5.3(GS). Felt at Anchorage, Anchor Point, Homer, Kenai andWasilla. Felt strongly throughout south-central Alaska andthe Kenai Peninsula.

Broadband Source Parameters (GS): Dep 63; NP1: Strike=246,Dip=68, Slip=90; NP2: Strike=66, Di?=22, Slip=90; Radiatedenergy 2.3*10**12 Nm.

Moment Tensor (GS): Dep 70; Principal axes (scale 10**17Nm): (T) Val=4.99, Plg=68, Azm=98; (N) Val=0.12, ?lg=16,Azm=235; (P) Val=-5.11, Plg=15, Az==329; Besr doublecouple: Mo=5.0*10**l7 Nm; NP1: Strike=81, Dip=34, Slip=xJO-NP2: Strike=225, Dip=61, Slip=71.

Centroid, Moment Tensor iHHV): Centroid origin time10:30:04.8; Lat 59.16 N; Lori 151.48 W; Dep 63.0 3dy; Half-

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duration 2.2 sec; Principal axes (scale 10**17 Mr.): :TJ Val=5.07, Plg=68, Azm=97; (N) Val = -0.09, Plg=20. Az^=253; (P) Val=-4.97, Plg=8, Azm=346; Best double couple: Ko = 5.0*10**17 Nm; NP1: Strike=98, Dip=41, Slip=122; N?2 : Strike=239, Dip=56, Slip=65.

56 SOUTHERN ALASKA. <AEIC>. ML 3.0 (AEIC).14 TURKEY. MD 4.0 (ISK).25 MARIANA ISLANDS25 SOUTH OF KERMADEC ISLANDS21 BANDA SEA 4 SOUTHERN GREECE. <ATH>. MD 3.0 (ATH).

35 NEW BRITAIN REGION. P.N.G.13 SOUTH OF HONSHU, JAPAN 4 TURKEY. <ISK>. MD 2.8 (ISK).

14 ALBANIA. MD'2.6 (PDG).15 ALBANIA. MD3.4 (ATH), 3.2 (PDG). 4 TURKEY. <ATH>. MD 3.8 (ATH).

16 ALBANIA. MD3.5 (ATH), 3.4 (PDG). 33 CENTRAL ALASKA. <AEIC>.10 SPAIN. ffibLg 3.0 (HDD).11 NEAR COAST OF CENTRAL CHILE. <GUC>. 10 PYRENEES. ML 2.4 (STR), 2.4 (LOG). 36 TONGA ISLANDS9 NORTHWESTERN BALKAN REGION. <PDG>. MD 2.6 (PDG). 7 COLOMBIA. <RSNC>. ML 2.5 (RSNC).

11 MENDOZA PROVINCE, ARGENTINA. <GUC>.336 OFF COAST OF CHIAPAS, MEXICO. Mw 6.2 (GS) . 6.2 (HRV) . Me 6.3

(GS). ML 5.6 (CASC).Broadband Source Parameters (GS) : Dep 15; NPl: Strike=210, Dip=75, Slip=-30; NP2: Strike=48, Dip*61. Slip=-163; Radiated energy 5.4*10**13 Mm. Two events about 2.5 seconds apart. Depth based on first event.

Moment Tensor (GS): Dep 16; Principal axes (scale 10**16 Nm): (T) Val=2.13, Plg=10, Azm=l; (N) Val=-0.19, Plg=63, Azsi=lll; (P) Val=-1.93, Plg=24, Azm=266; Best double couple: Mo=2.0*10**18 Nm; NPl: Strike=46, Dip=65, Slip=-169; NP2: Strike=312, Dip=80, Slip=-25.

Centroid, Moment Tensor (HRV): Centroid origin time 22:41:33.3; Lat 14.63 N; Lon 94.86 W; Dep 15.0 Bay.- Half- duration 2.8 sec; Principal axes (scale 10**18 Nn) : (7) Val=1.92, Plg=3, Azm=212; (N) Val=-0.05, Plg=12, A2C=:21; (P) Val=-1.87. Plg=78, Azm=314; Best double couple: Mo=1.9*10**16 Nm; NPl: Strike=313, Dip=44, Slip=-73; N?2 : Strike*lll. Dip=49, Slip=-106.

Scalar Moment (PPT): Mo=4.3*10*«18 Nm.JAWA, INDONESIAPUERTO RICO REGION. <MPR>. MD 2.3 (MPR).MENDOZA PROVINCE, ARGENTINA. <GUC>.CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.9 (GUC) .MENDOZA PROVINCE, ARGENTINA. <GUC>. MD 2.3 (GUC).NEAR COAST OF PERU. Felt (V) at Callao, Chilca, Lina and Los Olivos; (IV) at Cieneguilla and San Vicente de Car.ete; (III) at Chancay and Huaral; (II) at Chincha Alta ar.d Huacho.

SVALBARD REGIONKODIAK ISLAND REGION. ML 3.9 (AEIC).ALASKA PENINSULA. <AEIC>.KODIAK ISLAND REGION. ML 4.9 (PMR), 4.8 (AEIC).MARIANA ISLANDSKODIAK ISLAND REGION. ML 4.4 (PMR), 4.3 (AEIC).KODIAK ISLAND REGION. Mw 5.1 (HRV). ML 5.1 (PMR), 4 £ iAEIC)Centroid, Moment Tensor (HRV): Centroid origin time 04:19:34.1; Lat 56.48 N Fix; Lon 152.86 W Fix; Dep 15.0 Fix; Half-duration 1.0 sec; Principal axes (scale 1~**16 Nm): (T) Val=4.62, Plg=56. Azm=285; (N) Val=-0.22, ?lg=2, Azm=18; (P) Val«-4.41, Plg=34, Azm=110; Beat double couple: Mo«4.5nO«M6 Nm; NPl: Strike«209, Dip=ll, Slip=lCl; NP2: Strike*18, Dip=79, Slip=88.

AFGHANISTAN-TAJIKISTAN BORD REG.SOUTH SANDWICH ISLANDS REGIONCORSICA. ML 2.0 (GEN), 1.6 (LOG).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.6 (GUC).CORSICA. <GEN>. ML 2.3 (GEN), 2.1 (LOG).SPAIN. <MDD>. mbLg 2.1 (MOD).NEAR COAST OF NICARAGUA. MD 4.1 (CASC).FRANCE. <GEN>. ML 2.6 (GEN), 2.4 (LOG).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC).SPAIN. <MDD>. mbLg 2.5 (HDD).MID-INDIAN RIDGE. Mw 5.2 (HRV).Centroid, Moment Tensor (HRV) : Centroid origin tir.e 06:54:50.7; Lat 11.31 S; Lon 65.96 E; Dep 15.0 Fix Half- duration 1.0 sec; Principal axes (scale 10**16 N- . '?) Vai = 5.79, Plg=0, Azm=79; (N) Val = 0.58, Plg=21, Ar.- = ̂ ; ; (Fi Val=-6.36, Plg=69, Azm=169; Best double couple: Kc=6.1«10«»16 Nm; NPl: Strike=iS9, Dip=49, Slip=-£l N?2 : Strike=329, Dip=49, Slip=-119.

7 CHILE-ARGENTINA BORDER REGION. <G'JC> . 9 NORTHWESTERN BALKAN REGION. <PD3>. KD 1.4 (PDG).

18 SC'JTK OF KERMADEC ISLANDS. Kw 5.2 (HRV).Cer.troid, Moment Tensor (KRV) : Centroid origin ti-e 09:05:11.5; Lat 32.67 S; Lon 175.13 W; Dep 13C.3 Hilf- curatior. 1.0 sec; Principal axes (scale 10**16 N- 7, Vai=6.38, Plg = 17, Azm=231,- (N) Val=2.25, Pig = 55. A:-O;5,

MAY 1999 PAGE 6

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(P) Val=-8.63, Plg=32, Azm=130; Best double couple: Mo=7.5«10**16 Nm; XP1: Strike=275, Dip=55, Slip=-168; N?2: Scrike=178, Dip=SC, Slip=-36.

OREGON. <S£A-P>. tC 3.0 (SEA).NEW GUINEA, PAPUA NSW GUINEA. Mw 5.2 (KHV).Centroid, Moment Tensor (HRV): Centroid origin tide 11:15:35.6; Lat 5.51 S; Lon 142.10 E; Dep 75.1; Half- duration 1.0 sec; Principal axes (scale 10**16 N=o : (T) Val=7.09. Plg=27. Azm=129; (N) Val=-0.20, Plg=63. Azm=304. (P) Val=-6.89. Plg=2. Azm=38; Best double couple: MO=7.0*10--16 Nm; NP1: Strike=170, Dip=70, Slip=162; NP2: Strike=266, Dip=73. Slip=21.

NEAR SOUTH COAST OF FRANCE. <LDG>. ML 2.3 (LOG).WESTERN IDAHO. ML 3.4 (GS). 3.7 (BUT), 3.8 (BSE).CHILE-BOLIVIA BORDER REGIONTRINIDAD.-<TRN>. MD2.9 (TRN).LOYALTY ISLANDS REGIONSOUTH OF KERMADEC ISLANDS. Mw 5.5 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 13:21:33.8; Lat 33.69 S; Lon 178.24 W; Dep 15.0 Bdy; Half- duration 1.4 sec; Principal axes (scale 10»«17 Nm) : (T) Val=1.92, Plg=71, Azm=306; (N) Val=0.44, Plg=5, Azm=200; (P) Val*-2.36. Plg=19, Azm=108; Best double couple: Mo=2.1*10**17 Nm; KP1: Strike=189, Dip=27, Slip=78; NP2: Strike=23, Dip=64. Slip=96.

RYUKYU ISLANDSTAIWAN REGIONNEW GUINEA, PAPUA NEW GUINEAEASTERN NEW GUINEA REG., P.N.G.SAN JUAN PROVINCE, ARGENTINA.ALBANIA. <PDG>. ML 3.0 (PDG).CENTRAL ALASKA. ML 2.7 (PMR).OFF COAST OF CHIAPAS. MEXICO.CENTRAL ITALY. ML 3.2 (VIE).FRANCE. <GEN>. ML 2.7 (GEN), 2.7 (LOG), 2.5 (STR).CHILE-ARGENTINA BORDER REGION. <GUC>.VANUATU ISLANDSCALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.8 (GM).ANDAMAN ISLANDS, INDIASOUTH OF HONSHU. JAPANPOLAND. ML 3.8 (GRF). 3.2 (VIE).FIJI ISLANDS REGIONPUERTO RICO REGION. <MPR>. MD 2.9 (MPR).CHILE-ARGENTINA BORDER REGION. <GUC>.NEAR COAST OF CENTRAL CHILE. <GUC>.SPAIN. <MDD>. mbLg 1.7 (MOD).ANDREANOF ISLANDS, ALEUTIAN IS.UNIMAK ISLAND REGIONALBANIA. <PDG>. MD 3.1 (PDG).NEAR COAST OF CENTRAL CHILE. <GUC>.ALBANIA. <PDG>. MD 2.7 (PDG).NORTHWESTERN BALKAN REGION. ML 2.0 (VIE).SWITZERLAND. <STR>. ML 2.6 (LOG), 2.5 (STR).SOUTHERN IRAN. Mw 6.2 (HRV), 6.1 (GS). Ms 6.2 (BRK). At least 26 people killed, 100 injured and 800 houses destroyed in southwestern Fars Province. Felt at Kazerun and Shiraz. Also felt in parts of Bushehr and Kohkiluyeh va Buyer Ahmadi Provinces.

Moment Tensor (GS): Dep 14; Principal axes (scale 10**18 Nm) : (T) Val«1.70, Plg=2, Azm=90; (N) Val=0.05, Plg*86, Azm=208; (P) Val«-1.76, Plg=4, Azm=360; Best double couple: Mo=1.7«10**18 Nm; KP1: Strike=135, Dip=86, Slip=-179; NP2: Strike*45, Dip*89. Slip=-4.

Centroid, Moment Tensor (HRV) : Centroid origin tiiae 23:00:58.3; Lat 29.34 N; Lon 52.03 E; Dep 17.4 Fix; Half- duration 3.5 sec; Principal axes (scale 10**18 Nm): (T) Val*2.69, Plg«6, Azn=277; (N) Val=-0.44, Plg=74. Azm=165; (P) Val=-2.25, Plg*14. Azm=8; Best double couple: Mo«=2.5*10"18 Nm; KP1: Strike=52, Dip«=76, Slip=-6; NP2: Strike=143, Dip«84. Slip»-l65.

SOUTHERN IRANSOUTHERN IRANSOUTHERN IRANCENTRAL ALASKA. <AE1C>. ML 3.1 (AEIC), 3.3 (PMR).MONA PASSAGE. <MPR>. MD 2.6 (MPR).SOUTHERN IRANALASKA PENINSULA. <A£IC>.NORTHERN ITALY. <GEN>. ML 1.7 (GEN).TONGA ISLANDSTAIWAN. Felt (IV JMA) at I-lar. ar.d (II in much cf northern Taiwan. Aisc felt jima, Ryukyu Islaiids.

tNA BOrOER REGION. <GrJC> . >C 2 . 3 (GUCi .CHILE-ARG£?~rNA BOr-TER REGION. <3'JC> . >CZ 2 . (G-C!.

LA.ir.'IKA REGION IBrALTAR. =bLg 2.6 (MDD). KA5.IANA ISLANDS hCA? TANA INLANDS

Ir^iiJKZXICO. MT 4.4 (UNX!.P£?/J.- Felt (II) at Are^ipa.

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CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.6 (GUC) VIRGIN ISLANDS. <MFR>. MD 3.8 (MPR). NEAR COAST OF CENTRAL CHILE. <GUC>. NEAR COAST OF NORTHERN CALIF.(BRK).

CRETESOUTHERN IRANNORTHERN MID-ATLANTIC RIDGE NEAR COAST OF CENTRAL CHILE. SOUTHERN IRANEAST CENTRAL PACIFIC OCEAN OFF COAST OF OREGON FIJI ISLANDS REGIONOFF COAST OF CENTRAL CHILE. <GOC>. NORTHERN ITALY. ML 3.2 (VIE), 2.8 (LOG), 2.7 (TRI), 2.7(FUR), 2.6 (LJU).

KURIL ISLANDSBAJA CALIFORNIA, MEXICO. <ECX>. MD 3.2 (ECX). ML 3.5 (PAS). CALIF.-BAJA CALIF. BORDER REGION. <ECX>. MD 3.3 (ECX). ML3.5 (PAS) .

EASTERN HONSHU, JAPAN. Felt (III JMA) in central Shizuoka and (II JMA) in other parts of Shizuoka, western Aichi, southern Chiba, southern Nagano and much of Yamanas'r.i Prefectures. Also felt (II JMA) in the Tokyo area. Felt in much of central Honshu.FOX ISLANDS. ALEUTIAN ISLANDS. <AEIC>. ML 4.4 (AEIC)- SOUTHERN IRAN JAWA, INDONESIA LAKE TANGANYIKA REGION KODIAK ISLAND REGION. Mw 6.2 (GS), 6.2 (HRV). Me 5.8 (GS).Ms 6.1 (BRK). ML 5.7 (PMR). Felt at Kodiak. Broadband Source Parameters (GS): Dep 20; NPl: Strike=60, Dip=83. Slip=90; NP2: Strike=240, Dip=7, Slip=90; Radiated energy 1.2*10**13 Nm.

Moment Tensor (GS): Dep 19; Principal axes (scale 10**18 Nm): (T) Val=2.54, Plg=49, Azm=328; (N) Val=0.05, Plg=0. Azm=59; (P) Val=-2.58, Plg=41, Azm=149; Best double couple: Mo=2.6*10**18 Nm; NPl: Strike=244, Dip=4, Slip=95; NP2: Strike=59, Dip=86, Slip=90.

Centroid, Moment Tensor (HRV): Centroid origin time 14:13:58.1; Lat 56.21 N; Lon 152.58 W; Dep 19.0 Bdy; Half- duration 3.1 sec; Principal axes (scale 10**18 Nm) : (T) Val=2.41, Plg=54, Azm=335; (N) Val=0.07, Plg=3, Azm=241; (P) Val=-2.49, Plg=36, Azm=149; Best double couple: Mo=2.5*10**18 Nm; NPl: Strike=225, Dip=9, Slip=74 ; NP2: Strike=61, Dip=81. Slip-93.

MARIANA ISLANDS JAWA, INDONESIAOFF COAST OF CHIAPAS. MEXICO. MD 4.9 (UNM), 4.4 (CASC). GREENLAND SEA NEW BRITAIN REGION, P.N.G.KODIAK ISLAND REGION. ML 4.9 (PMR), 4.7 (AEIC). CENTRAL PERUKODIAK ISLAND REGION. ML 4.6 KODIAK ISLAND REGION. ML 4.3 XIZANG-INDIA BORDER REGIONNEAR COAST OF CENTRAL CHILE. <GUO. MD 3.5 (GUC) . COSTA RICA. MD 4.6 (CASC). KODIAK ISLAND REGION. ML 2.7 KODIAK ISLAND REGION. ML 4.1NEAR COAST OF CENTRAL CHILE. <GOC>. MD 3.3 (GUC). KODIAK ISLAND REGION. ML 3.5 (AEIC). FRANCE. <LDG>. ML 2.0 (STR), 1.8 (LOG). NORTHERN IRANSAN JUAN PROVINCE, ARGENTINA. <GUC>. MD 2.8 (GUC). HALMAHERA, INDONESIA SPAIN. <MDD>. mbLg 2.0 (MOD). KODIAK ISLAND REGION. ML 4.0 (AEIC). SOUTHERN IRANGUERRERO, MEXICO. <UNM>. MD 3.8 (UNM). KODIAK ISLAND REGION. ML 4.2 (PMR), 4.0 (AEIC). KODIAK ISLAND REGIONNEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.3 (GUC). SOUTHWESTERN ATLANTIC OCEAN NORTHERN ALASKA. <AEIC>. ML 2.8 (AEIC). KODIAK ISLAND REGION MARIANA ISLANDS REGION NORTH OP SEVERNAYA ZEMLYA COLOMBIA. <RSNC>. ML 2.5 (RSNC).NORTHWESTERN BALKAN REGION. ML 2.1 (VIE), 1.5 (LJU) GREECE. MD 4.2 (PDG). KYUSHU, JAPAN SALTA PROVINCE, ARGENTINA PUERTO RICO REGION. <MPR>. MD NEAR COAST OF NICARAGUA. Mw 5.(CASC).

Centroid, Moment Tensor (HRV) 23:58:05.3; Lat 11.48 N; Lon 86.70 W; Dep 71.5; Half- duration 1.0 sec; Principal axes (scale 10**16 N= .- !T) Val=5.43, Plg=32, Aza=63; (N) Val=0.81, Plg=47, A~=293; (P) Vai=-6.24, Plg=26, Azm=171; Best double coupls: Mo=5.8-10**16 Nm,- KP1: Strike=209, Dip=47, Slip=4; K?2: Strike=116, Dip=87, Slip=137.

(PMR), (PMR),

4.5 3.7

(AEIC). (AEIC).

(AEIC). (AEIC).

2.3 (MPR). .1 (HRV). MD 5.3 (UPA;.


4.7

HAY 1999 PAGE 8

08 00 02 51.1% 6.583 S 08 00 15 08.6* 34.392 S

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EASTERN NEW GUINEA REG., P.N.G. SOUTH OF KERMADEC ISLANDS. Mw 5.3 (HRV) . Centroid, Moment Tensor (HRV): Centroid origin time 00:15:05.4; Lat 33.71 S; Lon 178.16 W; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**17 Nm) : (?) Val=0.83, Plg=56. Azm=279; (N) Val=0.29, Plg=4, Aza=lS; (P) Val=-1.12, Plg=34, Azm=109; Best double couple: Mo=9.7*10**16 Nm; NPI: Strike=217, Dip=12, Slip=lll; NP2: Strike=15. Dip=79. Slip=86.

NORTHWESTERN BALKAN REGION. ML 1.9 (VIE), 1.4 (LJU) . KERMADEC ISLANDS REGION SOUTH OF FIJI ISLANDS MARIANA ISLANDS TONGA ISLANDSPOLAND. ML 4.2 (GRP). 3.7 (FUR), 3.7 (VIE). SAMAR, PHILIPPINE ISLANDSNEAR N COAST OF NEW GUINEA, PNG. Mw 5.1 (HRV) . Centroid, Moment Tensor (HRV): Centroid origin time 04:05:52.0; Lat 2.57 S; Lon 142.44 E; Dep 15.0 Fix,- Half- duration 1.0 sec; Principal axes (scale 10**16 Nm) : (T) Val=4.98, Plg*60, Azm*30; (N) Val=0.37, Plg=9, Azm=284; (P) Val=-5.35, Plg=28, Azm=188; Best double couple: Mo=5.2*10**16 Nm; NPI: Strike=255. Dip=19, Slip=60; N?2: Strike=106, Dip=74, Slip=100.

MID-INDIAN RIDGENORTHWESTERN BALKAN REGION. ML 2.2 (VIE). GREECE. MD 3.9 (PDG) .NEAR COAST OF NICARAGUA. Mw 5.2 (HRV) . MD 4.4 (CASC) . Centroid, Moment Tensor (HRV): Centroid origin time 05:12:00.4; Lat 11.02 N; Lon 86.73 W; Dep 54.0; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm) : (T) Val=7.32, Plg=52, Azm=129; (N) Val=-1.97, Plg=32, Azm=274; (P) Val=-5.36, Plg=17, Azm=15; Best double couple: Mo=6.3*10**16 Nm; NPI: Strike=143, Dip=40, Slip=147,- NP2: Strike=260, Dip=70, Slip=55.

NEAR COAST OF NICARAGUA. MD 4.0 (CASC) . STRAIT OF GIBRALTAR. mbLg 2.7 (MDD) . MID-INDIAN RIDGE FOX ISLANDS, ALEUTIAN ISLANDS WINDWARD ISLANDS. MD 2.7 (TRN). SPAIN. <MDD>. mbLg 2.8 (MDD).NEAR COAST OF GUATEMALA. MD 4.9 (UNM) , 4.6 (CASC). MONA PASSAGE. <MPR>. MD 3.3 (MPR) . SOUTHERN IRANGREECE. ML 4.1 (ROM). MD 3.8 (PDG). CHILE-ARGENTINA BORDER REGION. <GUC>. PUERTO RICO REGION. <MPR>. MD 2.3 (MPR). GREECE-ALBANIA BORDER REGION. MD 3.9 (PDG). SOUTHERN ALASKA. <AEIC>. ML 2.5 (AEIC). TAIWAN. Felt (IV JMA) in the epicentral area,lan and (I JMA) at Taipei.

SOUTHERN IRANTURKEY. <ISK>. MD 2.2 (ISK). SOUTHERN IRAN KODIAK ISLAND REGION. NORTHERN ITALY. <LDG>. FRANCE. <LDG>. ML 2.3CHILE-ARGENTINA BORDER REGION. <GUC>. CENTRAL ALASKA. <AEIO. ML 2.9 (AEIC), UKRAINE-MOLDOVA-SW RUSSIA REGION POLAND. ML 2.6 (VIE). NEW GUINEA, PAPUA NEW GUINEA NEAR COAST OF GUERRERO, MEXICO. <UNM>. FRANCE. <LDG>. ML 2.0 (LOG), 1.7 (STR). TURKEY. <ISK>. MD 2.9 (ISK). STRAIT OF GIBRALTAR. <MDD>. mbLg 2.7 (MDD). Felt (III) atRoquetas de Mar, Spain.

VANUATU ISLANDSOAXACA, MEXICO. <UNM>. MD 3.8 (UNM). KYRGYZSTAN-XINJIANG BORDER REG. NEAR COAST OF CENTRAL CHILE. <GUC>. PYRENEES. <STR>. ML 2.3 (STR), 2.0 (LOG). VANCOUVER ISLAND REGION. <PGC-P>. ML 3.8 (PGC). MD 3.5(SEA). Felt at Tofine.

SWITZERLAND. ML 2.3 (LDG), 2.2 (STR). SOUTHERN IRANNEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.6 (GUC) . NEAR EAST COAST OF HONSHU, JAPAN AZORES ISLANDS REGIONCENTRAL ALASKA. <A£IC>. ML 3.6 (AEIC), 3.8 (PMR). RYUKYU ISLANDSCENTRAL ALASKA. <AHIC>. ML 2.7 (AEIC). SOLOMON ISLANDS. Mw 5.3 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 17:56:45.5; Lat 11.29 S; Lon 162.30 2; Dep 16.6; Half- duration 1.2 sec; Principal axes (scale 10**16 Nm; : (T) Val=7.84, Plg=68, Azm=354; (N) Val=1.55, Plg=7, Azn=101; (P) Val=-9.39, ?Ig=21, Azm=193; Best double couple: Mo=8.6*10**16 Nn; NPI: Strike=295, Dip=25, Slip=i:f NP2: Strike=98, Dip=65, Slip=83.

ROMANIANEAR COAST OF CHIAPAS, MEXICO SOLOMON ISLANDS

(III JXX) at I-

ML 4.9 (PMR), ML 1.9 (LDG) (LDG).

4.7 (AEIC). 1.3 (STR).

3.0 (PMR).

MD 4.0 (UNM)

MAY 1999

08 19 44 35.9 45.449 N 151.630 E 63 D 6.2 5.3 0.8 511 KURIL ISLANDS. Mw 5.9 (GS) , 5.9 (HRV) . Me 5.9 (GS) . Felt (IJMA) in eastern Hokkaido and in southeastern Aomori and northern Iwate Prefectures, Honshu.Broadband Source Parameters (GS): Dep 54; NPl: Strike=77, Dip=80, Slip=95; NP2: Strike=230, Dip=ll, Slip=64; Radiated energy 1.8*10**13 Nm.

Moment Tensor (GS) .- Dep 51; Principal axes (scale 10**17 Nm): (T) Val=9.85, Plg=50, Azm=347; (N) Val=-3.58, Plg=2, Azm=254; (P) Val=-6.27, Plg=40, Azm=162; Best double couple: Mo=8.1*10**17 Nm; NPl: Strike=229, Dip=5, Slip=65; NP2: Strike=74, Dip=85, Slip=92.

Centroid, Moment Tensor (HRV): Centroid origin time 19:44:38.6; Lat 45.34 N; Lon 151.76 E; Dep 49.0 Bdy; Half- duration 2.3 sec; Principal axes (scale 10**17 Nm) : (T) Val=8.32, Plg=58, Azm=355; (N) Val=-0.47, Plg=5, Azm=257; (P)' Val=-7.85, Plg=32, Azm=164; Best double couple: Mo=8.1*10**17 Nm; NPl: Strike=235, Dip=14, Slip=68; NP2: Strike=78, Dip=77, Slip=95.

08 19 48 30.4? 21.49 S 173.44 E 33 N 4.9 1.3 14 VANUATU ISLANDS REGION. Mw 5.7 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 19:48:28.2; Lat 21.29 S; Lon 174.14 E; Dep 35.5; Half- duration 1.7 sec; Principal axes (scale 10**17 Nm) : (T) Val=3.36, Plg=0, Azm=247; (N) Val=0.02, Plg=85, Azm=157; (P) Val=-3.38, Plg=5, Azm=337; Best double couple: Mo=3.4*10**17 Nm; NPl: Strike=22, Dip=87, Slip=-3; NP2: Strike=112, Dip=87, Slip=-177.

08 20 01 21.5* 18.729 S 169.141 E 223 * 1.1 14 VANUATU ISLANDS08 20 43 06.4 29.156 S 70.142 W 120 * 4.0 1.2 31 CENTRAL CHILE08 21 10 22.84 15.901 N 98.670 W 8 8 OFF COAST OF GUERRERO, MEXICO. <UNM>. MD 4.1 (UNM) .08 21 17 39.1* 34.447 N 23.294 E 33 N 3.9 1.2 29 CRETE08 21 18 14.84 16.512 N 94.646 W 106 13 OAXACA, MEXICO. <UNM>. MD 4.3 (UNM).08 21 45 34.1 10.168 S 161.208 E 96 D 4.8 0.9 24 SOLOMON ISLANDS08 21 48 46.94 60.204 N 152.696 W 109 16 SOUTHERN ALASKA. <AEIC>.08 22 12 45.5 14.214 N 91.945 W 39 5.3 5.7 0.7 323 GUATEMALA. Mw 6.1 (GS), 6.1 (HRV). MD 5.4 (UNM). Felt at

Guatemala City.Moment Tensor (GS): Dep 36; Principal axes (scale 10**18 Nm): (T) Val=1.37, Plg=80, Azm=334; (N) Val=0.15, Plg=10. Azm=135; (P) Val=-1.51, Plg=3, Azm=226; Best double couple: Mo=1.4*10**18 Nm; NPl: Strike=326, Dip=43, Slip=104; NP2: Strike=127, Dip=49, Slip=77.

Centroid, Moment Tensor (HRV): Centroid origin time 22:12:50.4; Lat 14.19 N; Lon 92.38 W; Dep 32.1 Fix; Half- duration 2.7 sec; Principal axes (scale 10**18 Nm) : (T) Val=1.32, Plg=72, Azm=48 ; (N) Val=0.06, Plg=7, Azm=297; (P) Val=-1.38, Plg=17, Azm=205; Best double couple: Mo=1.4*10**18 Nm; NPl: Strike=285, Dip=29, Slip=76; NP2: Strike=121, Dip=62, Slip=97.

08 22 40 02.4* 46.005 N 15.207 E 10 G 0.3 5 NORTHWESTERN BALKAN REGION. ML 2.0 (VIE), 1.5 (LJU) .08 22 48 48.0? 13.73 N 92.30 W 33 N 3.8 1.5 9 OFF COAST OF CHIAPAS, MEXICO08 23 40 13.34 38.170 N 2.340 W 0 G 17 SPAIN. <MDD>. mbLg 2.0 (MOD).08 23 52 00.8* 34.039 N 140.293 E 104 * 3.7 0.4 12 NEAR EAST COAST OF HONSHU, JAPAN09 00 06 45.24 16.913 N 99.881 W 40 17 NEAR COAST OF GUERRERO, MEXICO. <UNM>. MD 3.9 (UNM).09 00 35 02.9 16.102 S 172.961 W 33 N 4.8 4.7 1.0 68 SAMOA ISLANDS REGION. Mw 5.2 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 00:35:08.5; Lat 16.15 S,- Lon 172.43 W; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm): (T) Val=9.10, Plg=65, Azm=24; (N) Val=-3.86, Plg=24, Azm=193; (P) Val=-5.24, Plg=4, Azm=285; Best double couple: Mo=7.2*10**16 Nm; NPl: Strike=38, Dip=46, Slip=125; NP2: Strike=174, Dip=54, Slip=60.

09 00 48 09.84 38.170 N 2.310 WO 10 SPAIN. <MDD>. mbLg 1.6 (MOD) .09 01 46 25.9 30.563 S 71.262 W 55 D 4.5 1.0 56 NEAR COAST OF CENTRAL CHILE. MD 4.5 (GUC) . Felt (IV) at

Combarbala, Coquimbo, Hurtado, La Serena, Monte Patria, Ovalle, Punitaqui and Vicuna; (II) at IIlapel.

09 02 03 30.54 42.831 N 17.904 E 9 13 ADRIATIC SEA. <PDG>. ML 2.7 (VIE). MD 2.4 (PDG) .09 02 06 11.64 42.594 N 19.033 E 17 9 NORTHWESTERN BALKAN REGION. <PDG>. MD 1.4 (PDG).09 02 44 51.5? 53.82 N 169.22 E 33N3.8 1.4 9 KOMANDORSKY ISLANDS REGION09 03 53 27.3 0.533 S 135.509 E 33 N 4.8 4.2 1.1 36 IRIAN JAYA REGION, INDONESIA09 04 27 51.2* 11.971 N 144.134 E 33 N 4.4 1.4 19 SOUTH OF MARIANA ISLANDS09 04 34 47.1* 33.274 N 139.196 E 33 N 1.0 10 SOUTH OF HONSHU, JAPAN09 04 48 30.24 39.880 N 22.430 E 5 11 GREECE. <ATH>. MD 3.2 (ATH) .09 04 49 53.84 34.471 S 70.426 W 11 12 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.5 (GUC).09 05 06 19.34 39.460 N 21.510 E 37 7 GREECE. <ATH>. MD 3.1 (ATH).09 05 09 12.0* 14.562 S 166.660 E 33 N 1.0 41 VANUATU ISLANDS09 05 11 46.9* 7.310 N 126.854 E 33 N 4.5 1.0 24 MINDANAO, PHILIPPINE ISLANDS09 05 26 14.6 33.225 N 139.367 E 33 N 4.3 1.0 18 SOUTH OF HONSHU, JAPAN09 05 26 57.1 45.910 N 15.280 E 10 G 0.3 9 NORTHWESTERN BALKAN REGION. ML 2.3 (VIE), 1.7 (LJU).09 06 11 19.74 60.940 N 152.290 W 108 30 SOUTHERN ALASKA. <AEIC>.09 06 26 35.0& 43.400 N 0.600 W 12 4 PYRENEES. <LDG>. ML 1.7 (LOG).09 06 45 59.0? 11.83 S 65.97 E 10 G 0.9 11 MID-INDIAN RIDGE09 06 48 23. 3& 18.960 N 64.100 W 74 9 VIRGIN ISLANDS. <MPR>. MD 3.5 (MPR) .09 07 13 53.8 29.272 S 68.653 W 111 D 4.4 1.0 58 SAN JUAN PROVINCE, ARGENTINA09 07 16 49.0& 38.320 N 21.470 E 38 10 GREECE. <ATH>. MD 3.3 (ATH).09 08 29 15.4& 13.756 N 92.055 W 17 4.2 13 OFF COAST OF CHIAPAS, MEXICO. <UNM>. MD 4.2 (UNM).09 08 38 23.1& 15.426 N 96.955 W 7 8 NEAR COAST OF OAXACA, MEXICO. <UNM>. MD 3.9 (UNM).09 08 47 50.8 34.456 N 32.259 E 10 G 0.9 15 CYPRUS REGION. MD 3.7 (ISK) .09 09 25 17.4& 37.020 N 22.580 E 5 7 SOUTHERN GREECE. <ATH>. ML 3.0 (ATH).09 09 41 36.3S. 18.010 N 66.370 W 12 5 PUERTO RICO REGION. <MPR>. MD 2.2 (MPR).09 09 52 15.0? 37.00 N 12.42 W 10 G 1.0 37 NORTH ATLANTIC OCEAN. mbLg 3.2 (MOD).09 10 01 53.4& 40.406 N 26.224 E 8 6 TURKEY. <ISK>. MD 2.8 (ISK).09 10 58 33.6* 50.474 N 18.857 E 5 G 1.4 6 POLAND. MG 2.5 (WAR).09 11 18 20.4& 32.957 S 70.240 W 99 12 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.6 (GUC).09 11 35 28.6 34.335 S 71.177 W 33 N 0.6 10 NEAR COAST OF CENTRAL CHILE. MD 2.7 (GUC).

MAY 1999 PAGE 10

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SOUTHERN IRANMID-INDIAN RIDGE. Mw 5.0 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 12:28:11.1; Lat 10.89 S Fix; Lon 66.63 E Fix; Dep 15.0 Fix; Half-duration 1.0 sec; Principal axes (scale 10**16 Nra) : (T) Val=4.45, Plg=24, Azm=222; (N) Val=-1.69, Plg=55, Azm=92; (P) Val=-2.76, Plg=24, Azm=323; Best double couple: Mo=3.6*10**16 Nm; NP1: Strike=2, Dip=55, Slip=0; NP2: Strike=92. Dip=90, Slip=-145.

NEAR COAST OP VENEZUELA. <TRN>. MD 3.2 (TRN).UNIMAK ISLAND REGIONFRANCE. <LDG>. ML 2.0 (STR). 1.7 (LOG).SPAIN. <MDD>. mbLg 1.8 (MOD).KURIL ISLANDSEASTERN NEW GUINEA REG., P.N.G.RYUKYU ISLANDSSTRAIT OF GIBRALTAR. <MDD>. mbLg 2.5 (MOD).TURKEY. <ISK>. MD 3.7 (ATH), 3.3 (ISK).NORTHERN SUMATERA, INDONESIASTRAIT OF GIBRALTAR. <MDD>. mbLg 2.1 (MOD).STRAIT OF GIBRALTAR. <MDD>. mbLg 2.8 (MOD). Felt (III) at El Bosque and Prado del Key, Spain.FOX ISLANDS, ALEUTIAN ISLANDSSTRAIT OF GIBRALTAR. <MDD>. mbLg 1.8 (MOD).STRAIT OF GIBRALTAR. <MDD>. mbLg 1.9 (MOD).NORTHWESTERN BALKAN REGION. <PDG>. MD 1.9 (PDG).SPAIN. <MDD>. mbLg 2.2 (MDD).ALBANIA. <PDG>. MD 2.1 (PDG).CZECH AND SLOVAK REPUBLICS. MG 2.5 (WAR).FRANCE. <GEN>. ML 1.7 (GEN).TURKEY. MD 3.2 (ATH), 3.0 <ISK).STRAIT OF GIBRALTAR. <MDD>. mbLg 2.9 (MDD). Felt (III) at El Bosque and Prado del Rey, Spain.

NEW GUINEA, PAPUA NEW GUINEASOUTHERN ALASKA. <AEIC>.FIJI ISLANDS REGIONSTRAIT OF GIBRALTAR. <MDD>. mbLg 1.8 (MDD).WEST CHILE RISESPAIN. <MDD>. mbLg 2.4 (MDD).MID-INDIAN RIDGE. Mw 5.7 (GS), 5.5 (HRV).Moment Tensor (GS): Dep 3; Principal axes (scale 10**17 Nm) : (T) Val=3.63, Plg=50, Azm=223; (N) Val=1.99, Plg=40, Azm»55; (P) Val=-5.63, Plg=6, Azm=320; Best double couple: Mo=4.6*10**17 Nm; NP1: Strike=15, Dip*52, Slip=36; NP2: Strike=261, Dip=63, Slip=136.

Centroid, Moment Tensor (HRV) - Centroid origin time 18:56:13.9; Lat 42.39 S; Lon 83.89 E; Dep 15.0 Fix,- Half- duration 1.5 sec; Principal axes (scale 10**17 Nm) : (T) Val=2.18, Plg=63, Azm=200; (N) Val=0.03, Plg=27, Azm=3i; (P) Val=-2.21, Plg=5, Azm=299; Best double couple: Mo=2.2*10**17 Nm; NP1: Strike=3, Dip=47, Slip=52; NP2: Strike=232, Dip=55, Slip=123.

GREECE. <ATH>. MD 3.1 (ATH).TURKEY. <ISK>. MD 2.7 (ISK).ADRIATIC SEA. <PDG>. MD 2.6 (PDG).OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC).GREECE. <ATH>. MD 3.0 (ATH).STRAIT OF GIBRALTAR. <MDD>. mbLg 1.8 (MDD).MINDORO, PHILIPPINE ISLANDSSOUTH SANDWICH ISLANDS REGIONNORTHERN ALASKA. <AEIC>. ML 3.3 (AEIC), 3.3 (PGC). 3.2 (PMR)NORTHWESTERN KASHMIR. Mw 5 .3 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 21:38:11.1; Lat 36.75 N Fix; Lon 73.21 E Fix; Dep 69.2; Half-duration 1.2 sec; Principal axes (scale 10**17 Nm) : (T) Val=1.08, Plg=9, Azm=104; (N) Val=-0.11, Plg=38, Azm=7; (P) Val=-0.98, Plg=51, Azm=205; Best double couple: Mo=1.0*10**17 Nm; NP1: Strike=229, Dip=49, Slip=-36 Strike=345, Dip=64, Slip-133.

MINDANAO, PHILIPPINE ISLANDSCHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.3SOUTHERN YUKON TERRITORY, CANADA. <AEIC> (PGC).

OFF EAST COAST OF HONSHU, JAPAN SPAIN. <MDD>. mbLg 2.2 (MDD).NORTHERN ITALY. <LDG>. ML 1.6 (LOG).MID-INDIAN RIDGENORTHERN ITALY. <GEN>. ML 2.1 (GEN), 1 GUERRERO, MEXICO. <UNM>. MD 3.4 (UNM). CHILE-ARGENTINA BORDER REGION. <GUC>.

NP2:

(GUC). ML 3.0 (AEIC). 3.4

8 (LOG), 1.7 (STR)

NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3<GUC>. MD

(GUC). 9 (GUC)CHILE-ARGENTINA BORDER REGION

SOUTHERN IRANNORTHERN PERUCHILE-ARGENTINA SOFTER REGIONSOUTHERN ALASKA. <ATIC>.CHILE-ARGENTINA BORDER REGIONSOUTH OF KERMADEC ISLANDSUNIMAK ISLAND REGICX. <AEIC>.NEAR EAST COAST OF HONSHU, JAPAN. Felt (I JMA) inFukushima and norcheastern Miyagi Prefectures.

NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.3 (GUC). CENTRAL ALASKA. <AEIC> .

<GUC>. MD 3.3 (GUC)

<GUC>. MD 2.8 (GUC)

MAY 1999

10 08 12 03.34 36.410 N 5.750 W 5 8 STRAIT OF GIBRALTAR. <MDD>. mbLg 2.7 (HDD). 10 08 43 14.04 62.841 N 150.492 W 88 8 CENTRAL ALASKA. <AEIC>.10 08 47 25.0 30.397 S 69.163 W 65 5.2 0.9 142 CHILE-ARGENTINA BORDER REGION. Mw 5.2 (HRV). MD 4.8 (GUC) .

Centroid, Moment Tensor (HRV): Centroid origin time 08:47:26.7; Lat 29.51 S; Lon 69.05 W; Dep 67.5; Half- duration 1.0 sec; Principal axes (scale 10**16 >5m): (T) Val=6.32, Plg=35, Azm=333; (N) Val=1.00. Plg=50, Azm=186; (P) Val=-7.32, Plg=17, Azm=75; Best double couple: Mo=6.8*10**16 Nm; NP1: Strike=119, Dip=53, Slip=15; NP2: Strike=20, Dip=78, Slip=142.

10 09 12 57.4? 52.92 N 175.49 W 222 ? 3.7 0.8 10 ANDREANOF ISLANDS, ALEUTIAN IS. 10 09 17 40.0* 31.431 S 68.828 W 100 G 0.9 13 SAN JUAN PROVINCE, ARGENTINA. MD 3.9 (GUC). 10 10 01 55.64 53.855 N 165.639 W 73 7 FOX ISLANDS, ALEUTIAN ISLANDS. <AEIC>. 10 10 02 23.8 20.104 S 133.869 E 10 G 4.4 1.0 22 NORTHERN TERRITORY, AUSTRALIA10 10 20 07.1* 28.304 N 130.262 E 33 N 0.8 8 RYUKYU ISLANDS. Felt (I JMA) on Amami-O-shima and Kikai-jima. 10 10 34 36.1* 39.222 N 26.225 E 33 N 1.2 5 TURKEY10 10 42 57.24 38.807 N 122.810 W 2 15 NORTHERN CALIFORNIA. <GM-P>. MD 3.1 (GM) . 10 11 05 53.7 46.408 N 13.352 E 10 G 1.3 11 AUSTRIA. ML 2.4 (VIE), 1.9 (LJU) . 10 11 55 24.7 11.658 S 166.289 E 83 ? 5.0 5.2 1.0 79 SANTA CRUZ ISLANDS. Mw 5.7 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 11:55:23.9; Lat 11.69 S; Lon 166.05 E; Dep 51.0 Bdy; Half- duration 1.8 sec; Principal axes (scale 10**17 Km): (T) Val=3.91, Plg=82, Azm=309; (N) Val=0.46, Plg=5, Azm=178; (P) Val=-4.36, Plg=6, Azm=88; Best double couple: Mo=4.1*10**17 Nm; NP1: Strike=172, Dip=39, Slip=82; NP2: Strike=3, Dip=51, Slip=97.

10 12 12 54.54 36.460 N 4.730 W 0 G 5 STRAIT OF GIBRALTAR. <MDD>. mbLg 2.0 (MOD). 10 12 58 07.0* 29.854 N 141.246 E 73 ? 3.7 1.3 15 SOUTH OF HONSHU, JAPAN 10 13 58 21.1* 13.927 N 119.431 E 33 N 4.3 1.0 16 PHILIPPINE ISLANDS REGION 10 14 02 43.lt 39.196 N 27.063 E 10 4 TURKEY. <ISK>. MD 2.8 (ISK) . 10 14 25 20.7 8.097 S 130.403 E 33 N 4.7 1.3 21 TANIMBAR ISLANDS REG., INDONESIA 10 14 31 07.84 40.590 N 30.789 E 5 5 TURKEY. <ISK>. MD 2.7 (ISK).10 14 39 09.14 16.664 N 100.477 W 5 19 NEAR COAST OF GUERRERO, MEXICO. <UNM>. MD 4.1 (ONM) . 10 14 56 33.44 39.222 N 27.264 E 9 5 TURKEY. <ISK>. MD 2.8 (ISK). 10 15 02 21.0* 26.021 N 109.678 W 10 G 1.2 8 GULF OF CALIFORNIA10 15 22 57.84 54.588 N 162.571 W 8 10 ALASKA PENINSULA. <AEIC>. ML 2.7 (ABIC). 10 15 49 55.0 16.441 S 167.374 E 33 N 4.7 1.1 45 VANUATU ISLANDS 10 15 51 08.2* 29.169 N 51.878 E 33 N 4.3 1.3 19 SOUTHERN IRAN10 16 03 12.34 17.890 N 68.440 W 92 8 MONA PASSAGE. <MPR>. MD 3.6 (MPR) .10 16 03 45.64 34.613 S 70.862 W 97 12 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.2 (GUC). 10 16 23 21.34 18.320 N 67.790 W 51 4 MONA PASSAGE. <MPR>. MD 2.9 (MPR). 10 16 23 53.64 53.778 N 163.959 W 17 15 UNIMAK ISLAND REGION. <AEIO. ML 3.1 (AEIC) . 10 16 28 34.94 33.520 S 70.396 W 101 12 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.7 (GDC) . 10 16 35 43.74 39.140 N 27.586 E 10 G 5 TURKEY. <ISK>. MD 2.8 (ISK). 10 17 09 45.1* 29.380 N 51.868 E 33 N 4.2 0.8 15 SOUTHERN IRAN10 17 19 21.54 38.300 N 24.140 E 8 4 AEGEAN SEA. <ATH>. ML 2.8 (ATH) .10 18 27 17.84 33.864 S 70.711 W 84 11 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.8 (GDC). 10 18 29 08.0% 29.222 N 52.325 E 33 N 1.4 12 SOUTHERN IRAN 10 18 57 17.6* 18.613 S 172.674 W 68 D 4.6 1.1 34 TONGA ISLANDS REGION 10 19 55 44.7* 26.912 S 26.782 E 10 G 1.3 12 REPUBLIC OF SOUTH AFRICA 10 20 21 40.3 28.150 N 129.846 E 60 D 4.0 0.8 18 RYUKYU ISLANDS. Felt (II JMA) on Amami-O-shima and (I JMA)

on Kikai-jima. 10 20 33 02.0 5.159 S 150.880 E 138 D 6.5 6.8 0.9 430 NEW BRITAIN REGION, P.N.G. Mw 7.1 (GS), 7.1 (HRV). Me 7.0

(GS). mb 6.5 (BRK). Felt on New Britain. Also felt at Port Moresby, New Guinea.Broadband Source Parameters (GS): Dep 124; NP1: Strike=45, Dip=50, Slip=-75; NP2: Strike=202, Dip=42, Slip=-107; Radiated energy 7.7*10**14 Nm.

Moment Tensor (GS): Dep 136; Principal axes (scale 10**19 Nm): (T) Val=4.10, Plg=9, Azm=154; (N) Val=1.48, Plg=14, Azm=246; (P) Val=-5.58, Plg=73, Azm=30; Best double couple: Mo=4.8*10**19 Nm; NP1: Strike=228, Dip=38, Slip=-113; NP2: Strike=75, Dip=56, Slip=-74.

Centroid, Moment Tensor (HRV) : Centroid origin time 20:33:09.5; Lat 5.38 S; Lon 150.97 E; Dep 144.6; Half- duration 9.3 sec; Principal axes (scale 10**19 Nm) : (T) Val=4.37, Plg=4, Azm=137; (N) Val=0.59, Plg=25, Azm=229; (P) Val=-4.97, Plg=64, Azm=38; Best double couple: Mo=4.7*10**19 Nm; NP1: Strike=202, Dip=47, Slip=-126; NP2: Strike=69, Dip=54. Slip=-58. Scalar Moment (PPT): Mo=4.4*10**19 Nm.

10 20 54 14.5% 13.635 N 124.260 E 33 N 0.4 7 LUZON, PHILIPPINE ISLANDS 10 20 58 23.7* 46.905 N 150.919 E 33 N 4.2 1.3 12 KURIL ISLANDS10 21 15 19.0* 56.388 S 26.913 W 33 N 4.5 1.2 19 SOUTH SANDWICH ISLANDS REGION10 21 23 46.14 44.564 N 6.852 E 2 30 FRANCE. <GEN>. ML 2.3 (GEN), 2.0 (STR) , 1.9 (LOG). 10 21 26 53.3* 19.929 S 168.045 E 33 N 4.9 1.3 32 VANUATU ISLANDS10 21 53 11.54 16.063 N 61.358 W 13 8 LEEWARD ISLANDS. <TRN>. MD 3.3 (TRN). 10 22 17 50.7* 41.146 N 24.403 E 10 G 1.3 10 GREECE-BULGARIA BORDER REGION 10 22 22 26.7? 53.11 N 170.88 W 117 ? 1.2 3 FOX ISLANDS, ALEUTIAN ISLANDS 10 23 03 28.6* 10.572 S 66.645 E 10 G 0.9 15 MID-INDIAN RIDGE10 23 26 01.0 6.302 S 147.592 E 85 4.6 0.8 20 EASTERN NEW GUINEA REG., P.N.G. 10 ' 23 40 31.54 18.560 N 67.620 W 6 4 MONA PASSAGE. <MPK>. MD 2.5 (MPR). 10 23 53 45.4Sc 46.300 N 3.300 E 12 14 FRANCE. <LDG>. ML 2.0 (LOG), 1.9 (STR>.10 23 57 46.8* 59.066 S 25.600 W 33 N 4.5 0.9 23 SOUTH SANDWICH ISLANDS REGION11 01 00 40.9 36.102 S 110.640 W 10 G 5.1 5.5 0.8 68 SOUTHERN EAST PACIFIC RISE. Mw 6.0 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 01:00:48.2; Lat 35.55 S; Lon 110.46 W; Dep 15. Z Fix; Half- duration 2.5 sec,- Principal axes (scale 10**15 Nm) : (T) Val = 1.27, Plg=18, Azm=242,- (N) Val=-0.16, Plg=70, Azm=89; (P) Val=-l.ll, Plg=8, Azm=334 ; Best double couple: Mo=1.2*10**18 NIB; NP1: Strike=19, Dip = 71, Slip=7; N?2 : Strike=287, Dip==4, Slip=161.

11 01 14 38.4 32.066 S 71.984 W 10 G 0.5 17 NEAR COAST 0? CEHTRAL CHILE. MD 4.3 (GUC).

MAY 1999 PAGE 12

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FOX ISLANDS, ALEUTIAN ISLANDS. <AEIC>. Mw 5.4 (HRV). ML 5.1 (AEIC). Felt strongly at Dutch Harbor. Also felt at AJcutanand Unalaska.

Centroid, Moment Tensor (HRV): Centroid origin time04:22:00.6; Lat 52.94 N; Lon 165.80 W; Dep 69.2; Half- duration 1.3 sec; Principal axes (scale 10**17 Nm): (T)Val=1.50, Plg=55, Azm=272; (N) Val=0.07, Plg=22, Azm=37; (P) Val=-1.57, Plg=26, Azm=138; Best double couple:Mo=1.5*10**l7 Nm; NP1: Strike=268, Dip=27, Slip=144; NP2:Strike=31, Dip=74, Slip=67. SWITZERLAND. <LDG>. ML 2.0 (LOG). TURKEY. <ISK>. MD 2.8 (ISK). E. CAROLINE ISLANDS, MICRONESIA JAWA, INDONESIAEASTERN NEW GUINEA REG., P.N.G. NEAR COAST OF VENEZUELA. <TRN>. MD 3.3 (TRN). NEAR COAST OF VENEZUELA. <TRN>. MD 3.2 (TRN). FOX ISLANDS, ALEUTIAN ISLANDS. <AEIC>. ML 2.9 (AEIC). SOUTHERN ALASKA. <AEIC>. ML 3.0 (AEIC), 3.2 (PMR). VOLCANO ISLANDS REGIONNEAR COAST OF GUERRERO, MEXICO. <UNM>. MD 3.8 (UNM). TURKEY. <ISK>. MD 2.8 (ISK). TURKEYNORTHERN ITALY. <GEN>. ML 1.9 (GEN). NEAR COAST OF GUERRERO, MEXICO. MD 4.0 (UNM). SOUTHERN ALASKA. <AEIC>. NORTHERN ITALY. <GEN>. ML 2.1 (GEN). IRIAN JAYA, INDONESIACHIAPAS, MEXICO. <UNM>. MD 3.7 (UNM). CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.9 (GUC). TAIWANOAXACA, MEXICO. MD 4.6 (UNM). ALASKA PENINSULA. <AEIO. ML 3.4 (AEIC). GREECE. <ATH>. MD 3.0 (ATH). NEW IRELAND REGION, P.N.G. CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.4 (GUC).SOUTHERN EAST PACIFIC RISE. Mw 5.6 (HRV). Centroid, Moment Tensor (HRV): Centroid origin time 15:56:17.8; Lat 36.41 S; Lon 110.71 W; Dep 15.0 Fix; Half- duration 1.3 sec; Principal.axes (scale 10**17 Nm) : (T) Val=2.95, Plg=6, Azm=242; (N) Val=0.22, Plg=79, Azm=7 ; (P) Val=-3.17, Plg=9, Azm=151; Best double couple: Mo=3.1*10**17 Nm; NP1: Strike=287, Dip=80, Slip=-178; NP2: Strike=197, Dip=88, Slip=-10.

TRINIDAD. <TRN>. MD 3.0 (TRN).SOUTHERN EAST PACIFIC RISE. Mw 5.7 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 16:05:17.6; Lat 36.63 S; Lon 110.68 W; Dep 15.0 Fix; Half- duration 1.3 sec; Principal axes (scale 10**17 Nm): (T) Val=3.68, Plg=8, Azm=238; (N) Val=-0.08, Plg=82, Azm=59; (P) Val=-3.61, Plg=0, Azm=328; Best double couple: Mo=3.6*10**17 Nm; NPl: Strike=13, Dip=84, Slip=6; NP2: Strike=283, Dip=84, Slip=174.

GUERRERO, MEXICO. MD 3.5 (UNM).SOUTHERN EAST PACIFIC RISENORTHEASTERN INDIA. Felt in north-central Assam.EASTERN GULF OF ADENCRETE. MD 3.9 (ATH).EASTERN GULF OF ADENKURIL ISLANDSSOUTHERN GREECE. MD 3.9 (ATH).GREECE. <ATH>. MD 3.2 (ATH).SOUTH OF KERMADEC ISLANDSPUERTO RICO REGION. <MPR>. MD 2.6 (MPR).AEGEAN SEA. <ATH>. MD 3.2 (ATH).NORTHERN CALIFORNIA. <GM-P>. MD 3.3 (GM). ML 3.4 (BRK).TRINIDAD. <TRN>. MD 3.0 (TRN).NORTH ATLANTIC OCEANNEAR SOUTH COAST OF FRANCE. <STR>. ML 2.0 (LOG), 1.7 (STR).ALASKA PENINSULA. <AEIC>. ML 2.6 (AEIC).ALASKA PENINSULA. <AEIC>.CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.5 (GUC).NORTHWESTERN BALKAN REGION. <PDG>. MD 2.9 (PDG).NORTHWESTERN BALKAN REGION. MD 3.6 (PDG). ML 3.3 (ROM).GUERRERO, MEXICO. <UNM>. MD 3.8 (UNM).NORTH ATLANTIC OCEANFRANCE. <LDG>. ML 1.7 (STR), 1.6 (LOG).NORTH ATLANTIC OCEANSTRAIT OF GIBRALTAR. <MDD>.NORTH ATLANTIC OCEANTURKEY. MD 2.9 (ISK).NORTHEASTERN CHINA. ML 4.4 (BJI).CHILE-ARGENTINA HORDE?. REGION. <GUC>. MD 3.3 (GUC).KERMADEC ISLANDS, NEW ZEALANDROMANIASOUTHERN SUMATERA, INDONESIASTRAIT OF GIBRALTAR. <XDD>. rabLg 2.3 (MOD).TRINIDAD. <TRN>. MD 3.I (TRN).SOUTHERN YUKON TERRITORY, CANADA. <PGC-P>. ML 5.0 (PGC), 5. ' (AEIC).

NORTHWESTERN BALKAN EZGION. <PDG>. MD 2.2 (PDG).AUSTRIA ,M'_ 3.3 (GRF) , 3.2 (LOG), 3.1 (VIE), 2.8 (TRI), 2.:(FUR), (LJU). Felt (V) at Bovec and Kobarid, Slovenia.

MAY 1999

12 04 10 08.3 45.598 N 97.123 E 33 N 3.9 0.7 12 MONGOLIA12 04 39 08.6& 15.899 N 98.362 W 3 5 OFF COAST OF GUERRERO, MEXICO. <UNM>. MD 3.7 (UNM) .12 04 45 09.7& 16.949 N 94.399 W 174 8 OAXACA, MEXICO. <UNM>. MD 3.8 (UNM).12 04 45 57.0& 38.680 N 24.120 25 4 AEGEAN SEA. <ATH>. ML 3.0 (ATH).12 05 13 55.1& 36.810 N 5.430 W 0 G 10 STRAIT OF GIBRALTAR. <MDD>. mbLg 2.1 (MOD).12 05 14 36.2& 36.840 N 5.600 '« 0 11 STRAIT C? GIBRALTAR. <MDD>. ffibLg 2.4 (MED).12 07 39 17.3* 50.278 N 6.650 2 10 G 0.9 5 GERMANY. ML 2.4 (UCC).12 08 00 24.8& 39.556 N 29.363 E 10 G 4 TURKEY. <ISK>. MD 2.6 (ISK).12 08 05 31.0& 32.524 S 71.354 W 39 11 NEAR COAST OF CENTRAL CHILE. <GUC>.12 08 57 33.6% 39.705 N 29.415 E 10 G . 0.4 6 TURKEY. MD 2.8 (ISK).12 09 05 34.8& 61.687 N 146.507 W 17 51 SOUTHERN ALASKA. <AEIC>. ML 3.1 (AEIC), 3.2 (PMR) .12 09 27 54.0& 18.020 N 66.350 W 5 7 PUERTO RICO REGION. <MPR>. MD 2.7 (MPR) .12 09 41 39.5* 34.232 S 178.896 W 68 * 5.1 5.0 1.0 38 SOUTH OF KERMADEC ISLANDS. Mw 5.4 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 09:41:37.8; Lat 34.23 S Fix; Lon 178.90 W Fix; Dep 15.0 Fix; Half-duration 1.0 sec; Principal axes (scale iO**17 Nm): (T) Val=1.32, Plg=49, Azm=270; (N) Val=0.00, ?lg=8, Azm=9; (P) Val=-1.32, Plg=40, Azm=105; Best double couple: Mo=1.3-10**17 Nm; NP1: Strike=248, Dip=9, Slip=149; NP2 : Strike=8, Dip=85, Slip=82.

12 09 45 43.7& 31.628 S 70.085 W 130 9 CHILE-ARGENTINA BORDER REGION. <GUC>.12 09 47 23.9& 38.700 N 23.550 E 5 10 GREECE. <ATH>. ML 3.4 (ATH).12 09 59 48.2& 44.395 N 7.271 E 13 5 NORTHERN ITALY. <GEN>. ML 1.8 (GEN).12 10 10 03.0& 40.710 S 174.800 E 46 9 COOK STRAIT, NEW ZEALAND. <WEL>. Felt at Wellington on the

North Island.12 11 17 35.2& 32.191 S 71.842 W 13 11 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC) .12 11 32 58.7& 36.820 N 5.510 W 0 G 8 STRAIT OF GIBRALTAR. <MDD>. mbLg 2.4 (MDD) .12 11 41 22.7% 36.811 N 5.498 W 10 G 0.9 7 STRAIT OF GIBRALTAR. mbLg 2.1 (MDD).12 11 45 35.2 35.181 S 70.980 W 100 G 3.8 0.7 17 CHILE-ARGENTINA BORDER REGION. MD 3.9 (GUC). Felt (II) in

the epicentral area, Chile.12 11 48 41.0& 36.820 N 5.500 W 0 G 7 STRAIT OF GIBRALTAR. <MDD>. mbLg 2.3 (MDD).12 12 09 46.0& 37.510 N 118.990 HO 16 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 2.9 (GM) , 3.2

(BRK) .12 12 37 05.2& 36.800 N 5.540 W 0 G 8 STRAIT OF GIBRALTAR. <MDD>. mbLg 2.3 (MDD).12 13 07 02.8* 37.898 N 134.920 E 393 * 1.0 11 SEA OF JAPAN12 13 07 45.3& 53.799 N 164.082 W 20 13 UNIMAK ISLAND REGION. <AEIC>. ML 2.8 (AEIC).12 13 17 39.2% 18.152 N 99.557 W 55 * 0.6 14 GUERRERO, MEXICO. MD 3.6 (UNM).12 14 08 16.0& 60.819 N 152.022 W 87 56 SOUTHERN ALASKA. <AEIC>.12 14 39 30.0& 62.210 N 150.396 W 14 44 CENTRAL ALASKA. <AEIC>. ML 2.8 (AEIC), 2.9 (PMR).12 15 50 40.6& 39.219 N 27.289 E 5 4 TURKEY. <ISK>. MD 2.7 (ISK).12 17 10 56.5& 39.190 N 21.620 E 5 13 GREECE. <ATH>. ML 3.4 (ATH).12 17 59 22.4 43.032 N 143.835 S 103 D 5.9 0.8 451 HOKKAIDO, JAPAN REGION. Mw 6.2 (GS), 6.2 (HRV). Me 6.5

(GS). Felt (IV JMA) in southeastern Hokkaido and (III JMA) in parts of Aomori, Iwate and Miyagi Prefectures, Honshu. Felt in much of Hokkaido and south to Fukushima Prefecture. Also felt (IV) at Yuzhno-Kurilsk, Kunashir. Broadband Source Parameters (GS): Dep 97; NP1: Strike=275, Dip=75, Slip=-100; NP2: Strike=129, Dip=18, Slip=-57 ; Radiated energy 1.2*10**14 Nm.

Moment Tensor (GS): Dep 95; Principal axes (scale 13**18 Nm): (T) Val=2.80, Plg=32. Azm=10; (N) Val=-0.81. ?lg=6, Azra=275; (P) Val=-1.99, Plg=57, Azra=175; Best double couple: Mo=2.4*10**18 Nm; NP1: Strike=123, Dip=14, Slip=-62; NP2: Strike=274, Dip=78, Slip=-97.

Centroid, Moment Tensor (HRV): Centroid origin tine 17:59:24.9; Lat 43.12 N; Lon 143.70 E; Dep 96.2; Half- duration 3.6 sec; Principal axes (scale 10**18 Nm) : (T) Val=2.90, Plg=24, Azm=2; (N) Val=-0.96, Plg=l, Azm=93; (P) Val=-1.94, Plg=66, Azm=186; Best double couple: Mo=2.4«10**18 Nm; NP1: Strike=90, Dip=21, Slip=-94; NP2: Strike=273, Dip=69, Slip=-89.

12 18 00 59.4& 18.480 N 67.470 W 17 7 MONA PASSAGE. <MPR>. MD 3.5 (MPR). 12 19 48 51.7* 29.655 N 52.119 E 33 N 4.3 1.3 26 SOUTHERN IRAN. Felt in the Shiraz area. 12 19 52 05.6* 29.711 N 52.249 E 33 N 4.2 1.3 19 SOUTHERN IRAN12 21 35 21.4& 38.590 S 175.890 E 162 12 NORTH ISLAND, NEW ZEALAND. <WZL>. 12 22 07 57.7& 55.294 N 158.072 W 10 19 ALASKA PENINSULA. <AEIC>. ML 3.4 (AEIC). 12 23 14 11.li 36.730 N 4.410 W 83 19 STRAIT O? GIBRALTAR. <MDD>. 12 23 33 52.9& 35.062 S 70.310 W 15 11 CHILE-ARGENTINA BORDER REGION. <GUC>. 12 23 42 34.6? 32.22 N 141.59 2 33 N 4.3 0.8 11 SOUTH OF HONSHU, JAPAN12 23 52 14.0& 53.765 N 166.024 W 86 10 FOX ISLANDS, ALEUTIAN ISLANDS. <AEIC>.13 00 39 04.9* 17.424 S 69.260 W 133 ? 3.9 0.3 8 PERU-BOLIVIA BORDER REGION13 00 39 08.5* 43.465 N 134.127 S 433 * 4.2 1.0 14 NEAR SOUTHEAST COAST OF RUSSIA13 02 24 19.4 44.249 N 12.074 2 10 G 1.1 27 NORTHERN ITALY. ML 2.9 (LOG).13 02 28 58.9& 47.400 N 2.700 W 2 9 FRANCE. <LDG>. ML 2.3 (LOG).13 02 42 23.6& 38.050 N 21.880 E 5 16 GREECE. <ATH>. MD 3.6 (ATH). Felt at Kato Akhaia.13 02 43 00.9 18.604 N 64.493 W 68 D 4.3 0.9 41 VIRGIN ISLANDS. MD 4.2 (MPR), 4.2 (TRN). Felt (IV) on

Tortola, British Virgin Islands. Felt throughout, che U.S.and British Virgin Islands.

13 03 14 47.5 6.690 S 130.504 E 33 N 4.8 1.0 52 BANDA SEA 13 04 31 56.0? 23.23 S 170.66 E 33 N 4.8 1.4 27 LOYALTY ISLANDS REGION13 04 59 16.7& 36.788 N 121.531 W 11 13 CENTRAL CALIFORNIA. <GM-P>. KD 2.9 (GM) . Felt at Salinas. 13 05 21 58.5& 45.778 N 117.417 W 5 G 10 OREGON. <3SE-P>. ML 2.8 (BSE). 13 05 46 08.1 14.112 N 91.726 W 36 D 4.4 1.1 58 GUATEMALA. MD 4.8 (UNM). 13 06 25 35.9& 37.650 N 21.910 E 5 5 SOUTHERN GREECE. <ATH>. ML 3.0 (ATH). 13 06 37 38.7& 17.182 N 99.872 * 47 12 GUERRERC, MEXICO. <UNM>. MD 4.0 (UNM). 13 08 04 18.7& 39.677 N 29.35S E 10 G 5 TURKEY. <ISK>. MD 2.8 (ISK).13 08 37 20.3& 34.035 S 71.196 K 63 12 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.6 (GUC). 13 08 42 27.9 36.501 N 27.824 E 105 3.8 0.9 31 DODECANESE ISLANDS. MD 3.2 CSK). 13 09 40 28.0& 39.207 N 27.972 E 5 4 TURKEY. <ISK>. MD 2.8 (ISK). 13 10 35 25.6& 42.620 N 1.51C K 2 G 4 PYRENEES. <STR>. ML 2.5 (STHi, 2.3 (LDG). 13 10 38 59.9& 35.092 N 37.026 W 22 7 TENNESSEE. <TVA>. MD 2.8 (TVA) . Felt at Pulaski. 13 11 56 35.7& 37.920 N 22.23C E 5 3.8 34 SOUTHERN GREECE. <ATH>. MD 3.7 (ATH), 13 12 11 58.4& 32.161 S 71.604 X 7 11 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.5 (GUC;.

MAY 1999 PAGE 14

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STRAIT OF GIBRALTAR. mbLg 2.8 (MOD).SANTA CRUZ ISLANDSSTRAIT OF GIBRALTAR. <MDD>. mbLg 2.6 (HDD).MINDANAO, PHILIPPINE ISLANDSMINAHASSA PENINSULA, SULAWESI. Mw 5.5 (GS), 5.5 (HRV) . Felt(IV) at Poso; (III) at Gorontalo and Manado.

Moment Tensor (GS): Dep 27; Principal axes (scale 10**17Nm): (T) Val=2.21, Plg=17, Azm=313; (N) Val=-0.49, Plg=32,Azm=211; (P) Val=-1.73, Plg=52, Azm=66; Best double couple:Mo=2.0*10**17 Nm; NP1: Strike=81, Dip=40, Slip=-33; NP2:Strike=198, Dip=69, Slip=-125.

Centroid, Moment Tensor (HRV): Centroid origin time13:54:45.3; Lat 0.06 S; Lon 121.58 E; Dep 51.3; Half- duration 1.3 sec; Principal axes (scale 10**17 Nm) : (T)Val=1.83, Plg=4, Azm=326; (N) Val=0.02, Plg=47, Azm=232;(P) val=-1.85, Plg=43, Azm=59; Best double couple:Mo=1.8*10**17 Nm; NP1: Strike=93, Dip=58, Slip=-31; NP2:Strike=201, Dip=64, Slip=-144.

MISSOURI-KANSAS BORDER REGION. <MACRO>. mbLg 3.0 (GS). Somedamage in the epicentral area. Felt in parts of KansasCity, Kansas. Possible collapse of a limestone mine.

TURKEY. <ISK>. MD 2.7 (ISK). COLOMBIA. <RSNC>. ML 2.7 (RSNC). OFF EAST COAST OF KAMCHATKA TURKEY. <ISK>. MD 2.8 (ISK). SOUTHERN GREECE. <ATH>. ML 3.9 (ATH). TAIWAN REGIONNEAR SOUTHEAST COAST OF RUSSIA NEW BRITAIN REGION, P.N.G. AUSTRIA. ML 4.4 (GRF), 3.9 (VIE), 3.8 (CLL), 3.8 (FUR), 3.7(LOG), 3.7 (TRI), 3.6 (FBB). Felt (V) in the Kobarid area.Slovenia. Also felt in northeastern Italy.

NEAR COAST OF CHIAPAS, MEXICO. MD 4.8 (UNM) , 4.3 (CASC) . NEAR SOUTH COAST OF FRANCE. <STR>. ML 2.0 (STR) , 2.0 (LDG) . GERMANY. <STR>. ML 2.7 (LDG), 2.5 (STR)(GRF).

SOUTHERN GREECE. <ATH>. ML 3.4 CHILE-ARGENTINA BORDER REGION. KURIL ISLANDS NEAR COAST OF NICARAGUAFOX ISLANDS, ALEUTIAN ISLANDS. <AEIC>. ML'3.2 (AEIC). LAKE ISSYK-KUL REGION NORTHERN SUMATERA, INDONESIA GULF OF ALASKA. ML 2.5 (AEIC).KENAI PENINSULA, ALASKA. <AEIC>. ML 3.4 (AEIC), 3.3 (PMR) SOUTHERN NEVADA. <REN-P>. MD 3.5 (REN). NEAR SOUTHEAST COAST OF RUSSIA CHILE-ARGENTINA BORDER REGION. <GUC>. NEAR COAST OF GUERRERO, MEXICO. CENTRAL ALASKA. <AEIC>. ML 2.9 OFF EAST COAST OF KAMCHATKA SAN JUAN PROVINCE, ARGENTINA NEAR COAST OF CENTRAL CHILE. <GUC>. MD 4.7 (GUC) . Felt (III)at Cauguenes, Chilian, Concepcion and Talcahuano.

NEAR COAST OF NICARAGUA NEAR COAST OF NICARAGUANORTHWESTERN BALKAN REGION. MD 2.7 (PDG). FRANCE. <LDG>. ML 2.0 (LDG).MEXICO-GUATEMALA BORDER REGION. <UNM>. MD 4.2 (UNM). OFF EAST COAST OF HONSHU, JAPAN SOUTH SANDWICH ISLANDS REGION SWITZERLAND. <LDG>. ML 2.3 (LDG). SPAIN. <MDD>. mbLg 2.3 (MOD). NEAR COAST OF CENTRAL CHILE. MD 4.2 (GUC). TURKEY. <ISK>. MD 2.6 (ISK). AUSTRIA. ML 2.6 (VIE). SOUTHERN CALIFORNIA. <PAS-P>. ML 4.9 (PAS). Felt strongly atLanders. Felt in parts of Los Angeles, Riverside.Bernardino and San Diego Counties. SOUTHERN CALIFORNIA. <PAS-P>. ML 3.5 SOUTHERN CALIFORNIA. SOUTHERN CALIFORNIA. SOUTHERN CALIFORNIA. SOUTHERN CALIFORNIA. SOUTHERN CALIFORNIA. SOUTHERN CALIFORNIA. XIZANG-INDIA BORDER REGIONSOUTHERN CALIFORNIA. <PAS-P>.SOUTHERN CALIFORNIA. <PAS-P>.SOUTHERN CALIFORNIA. <PAS-P>. NORTHERN SUMATERA, INDONESIA ANDAMAN ISLANDS, INDIASOUTHERN CALIFORNIA. <PAS-P>.SOUTHERN CALIFORNIA. <PAS-P>.SOUTHERN CALIFORNIA. <PAS-P>.

<UNM>. MD 3.6 (UNM). (AEIC) .

San

<PAS-P>. <PAS-P>. <PAS-P>. <PAS-P>. <PAS-P>. <PAS-P>.

ML 3.1 ML 3.1 ML 3.0 ML 3.0 ML 3 ML 3

(PAS).(PAS).(PAS).(PAS).(PAS).

5 (PAS). 9 (PAS).

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ML MLML 3.4

(PAS) . (PAS). (PAS).

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(PAS). (PAS).

MAY 1999

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.285 N

.381 N

.619 N

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.600 N

.26 K

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.063 N

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.140 S

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.748 K

.810 N

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.196 N

.124 N

.415 N

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15 10 20 37.8& 4.668 N 74.755 W 18 4.115 10 34 52.2- 39.575 N 113.381 E 10 G 4.715 10 47 50.6? 5.25 N 127.48 E 33 N 4.015 11 01 58.2& 31.820 S 72.025 W 25

1.3 1.5

161478

SOUTHERN CALIFORNIA. <PAS-P>. ML 2.9 (PAS)SOUTHERN CALIFORNIA. <PAS-P>. ML 4.2 (PAS)LAKE BAYKAL REGION, RUSSIALAKE BAYKAL REGION, RUSSIASOUTH OF HONSHU, JAPANCHILE-ARGENTINA BORDER REGION.RAT ISLANDS, ALEUTIAN ISLANDSTURKEY. <ISK>. MD 2.8 (ISK).BALI REGION, INDONESIADOMINICAN REPUBLIC REGIONSOUTHERN IRANNEAR COAST OF OAXACA, MEXICO. <UNM>.TURKEY. <ISK>. MD 2.6 (ISK).SWITZERLAND. <LDG>. ML 2.5 (LOG), 2.NORTHWESTERN BALKAN REGION. ML 2.5RAT ISLANDS, ALEUTIAN ISLANDSTRISTAN DA CUNHA REGIONSOUTHERN CALIFORNIA. <PAS-P>. ML 2.9 (PAS)NORTHERN ITALY. <GEN>. ML 2.2 (GEN).CHILE-ARGENTINA BORDER REGION. <GUC>.SUMBAWA REGION, INDONESIARYUKYU ISLANDS. Felt (II JMA) on Okinawa and (I JMA) on Kume- jima.

SWITZERLAND. <STR>. ML 4.2 (GRF), 3.9 (LOG), 3.7 (FB3). 3.6 (STR), 3.5 (FUR).

NEAR COAST OF GUERRERO, MEXICO. <UNM>.OAXACA, MEXICO. <UNM>. MD 3.9 (UNM).OAXACA, MEXICO. <UNM>. MD 3.9 (UNM).MINAHASSA PENINSULA, SULAWESIOFF COAST OF OREGONSOUTHERN CALIFORNIA. <PAS-P>. ML 3.2 (PAS). Felt at Carpinteria and Santa Barbara.SOUTHERN IRANNORTHWESTERN BALKAN REGION. ML 2.1 (VIE).SERAM, INDONESIA. Mw 5.5 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 20:36:41.5; Lat 2.80 S; Lon 130.08 E; Dep 24.6; Half- duration 1.2 sec; Principal axes (scale 10*«17 Nm): (T) Val=1.77, Plg=60, Azm=226; (N) Val=0.09, Plg=2, Az»=319; (P) Val=-1.86, Plg=30, Azm=50; Best double couple: Mo=1.8*10*«17 Nm; NP1: Strike=146, Dip-15, Slip=97; NP2: Strike=319, Dip=75, Slip=88.

NEW BRITAIN REGION, P.N.G.NEW BRITAIN REGION, P.N.G.NORTH OF HALMAHERA, INDONESIANORTHERN ITALY. <GEN>. ML 2.1 (GEN)NEAR COAST OF CENTRAL CHILE. <GUC>.PUERTO RICO REGION. <MPR>. MD 3.0 (MPR).ALBANIA. <PDG>. ML 3.4 (PDG), 3.3 (ROM).CHILE-ARGENTINA BORDER REGION. <GUC>.SOUTHERN MOLUCCA SEACOLOMBIA. ML 3.2 (RSNC).TURKEY. <ISK>. MD 3.0 (ISK).TURKEY. <ISK>. MD 2.7 (ISK).SPAIN. <MDD>. mbLg 2.1 (MOD).EASTERN NEW GUINEA REG., P.N.G.HALMAHERA, INDONESIACENTRAL CHILE. <GUC>.MARIANA ISLANDSCOOK STRAIT, NEW ZEALAND. <WEL>.NEAR SOUTH COAST OF FRANCE. <LDG>. ML 3.0 (STR), 2.5 (LOG).TAIWAN REGIONSOUTHERN XINJIANG, CHINAIRIAN JAYA REGION, INDONESIASOUTHERN XINJIANG, CHINANORTH ATLANTIC OCEAN. mbLg 2.7 (MOD).AUSTRIA. ML 3.3 (STR), 3.2 (GRF), 3.1 (FBB), 2.9 (VZE), 2.8 (FUR), 2.7 (TRI).

NORTHERN ITALY. ML 2.6 (VIE).SOUTHERN XINJIANG, CHINASWITZERLAND. <STR>. ML 2.7 (LOG), 2.6 (FBB), 2.6 (STR).GERMANY. ML 2.8 (VIE), 2.6 (GRF), 2.6 (LOG), 2.5 (FBB), 2.5 (STR). - -

MONA PASSAGE. MD 3.5 (MPR).NORTHEASTERN CHINA. ML 4.3 (BJI).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.2 (GUC).NORTHERN ITALY. ML 2.6 (VIE), 2.1 (LJU). SOUTHERN ALASKA. <AEIC>.NEW BRITAIN REGION, P.N.G.TURKEY. <ISK>. MD 2.9 (ISK).SOUTHERN SUMATERA, INDONESIA. Mw 4.9 (HRV). Felt (~~~: atBengkulu and Kepahiang.

Centroid, Moment Tensor (HRV): Centroid origin time 10:05:36.2; Lat 4.08 S Fix; Lon 102.66 E Fix; Dep ~7.9; Half-duration 1.0 sec; Principal axes (scale 10**15 Nm) : (T) Val=2.62, Plg=68, Azm=55; (N) Val=0.14, Plg=13, Azm=289; (P) Val=-2.75, Plg=17, Azm=195; Best douile couple: Mo=2.7«10**16 Nm; NP1: Strike=265, Dip=30, Slip=62; NP2: Strike=116, Dip=64, Slip=105. COLOMBIA. <RSNC>. ML 4.8 (RSNC). NORTHEASTERN CHINA. ML 4.3 (BJI). PHILIPPINE ISLANDS REGION OFF COAST OF CENTRAL CHILE. <GUC>. MD"3.6 (GUC).

1.8 (LDG). MD 3.1 (GUC).

MAY 1999 PAGE 16

15 11 07 58.7t 38.610 N 23.600 E 5 7 GREECE. <ATH>. ML 3.2 (ATH). 15 11 19 58-1? 34.51 N 141.49 E 33 N 4.0 0.9 10 OFF EAST COAST OF HONSHU, JAPAN15 11 30 10.8t 32.645 S 71.604 W 29 13 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.6 (GUC). 15 13 21 50.5- 5.828 S 130.682 E 71 * 4.1 1.0 9 BANDA SEA15 13 22 10.5t 37.529 N 118.817 W 6 5.1 5.1 223 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. Mw 5.6 (GS), 5.5

(HRV), 5.5 (BRK). Small items knocked from shelves in tie epicentral area. Felt in many parts of central California as far north as Placerville and south to Valencia.

Moment Tensor (GS): Dep 16; Principal axes (scale 10**17 Nm): .(T) Val=2.68, Plg=9, Azm=63; (N) Val=0.01, Plg=77, Azm=288; (P) Val=-2.69, Plg=9, Azm=154; Best double couple: Mo=2.7*10**17 Nta; NP1: Strike=198, Dip=77, Slip=0; NP2: Strike=108, Dip=90, Slip=167.

Centroid, Moment Tensor (HRV): Centroid origin time 13:22:17.3; Lat 37.44 N; Lon 118.76 W; Dep 15.0 Fix; Half- duration 1.5 sec; Principal axes (scale 10**17 Nm) : (T) Val=2.38, Plg=14, Azm=248; (N) Val=0.10. Plg=64, Azm=9; (P) Val=-2.49, Plg=21, Azm=152; Best double couple: Mo=2.4*10**17 Nta; NP1: Strike=291, Dip=64, Slip=-175; N?2: Strike=199. Dip=85, Slip=-26.Moment Tensor (BRK): Dep 8; Principal axes (scale 10**17 Nm): (T) Val=2.31, Plg=4, Azm=249; (N) Val=0.00, Plg=78. Azm=359; (P) Val=-2.31, Plg=ll, Azm=158; Best double couple: Mo=2.3*10**17 Nm; NP1: Strike=203, Dip=85, Slip=-ll; NP2: Strike=294, Dip=79, Slip=-175.

15 13 28 17.8t 37.478 N 118.838 W 5 5 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.3 (BRK), 3.0(GS). Double event.

15 13 32 28.4t 37.479 N 118.841 W 7 3 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.2 (GM) . ML 3.2(BRK).

15 13 32 47.lt 18.120 N 67.290 W 14 7 MONA PASSAGE. <MPR>. MD 2.8 (MPR).15 13 34 37.2t 37.551 N 118.814 W 5 3 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.0 (GM). 15 13 34 53.8- 2.908 N 126.476 E 33 N 4.5 1.0 19 NORTHERN MOLUCCA SEA 15 13 38 06.2t 37.508 N 118.833 W 7 46 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 4.3 (GM), 4.4

(BRK).15 13 59 51.0 37.548 N 118.851 W 5 G 0.3 9 CALIFORNIA-NEVADA BORDER REGION. ML 3.2 (GS) . Multiple event. 15 14 00 28.2- 33.762 N 25.706 E 33 N 1.5 6 EASTERN MEDITERRANEAN SEA15 14 00 34.1 37.511 N 118.829 W 5 G 0.5 7 CALIFORNIA-NEVADA BORDER REGION. ML 3.4 (BRK), 3.3 (GS). 15 14 01 59.lt 37.485 N 118.847 W 11 9 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.1 (GM), 3.3

(BRK).15 14 04 34.lt 37.519 N 118.824 W 4 7 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.1 (GM). 15 14 06 08.5t 44.373 N 7.241 E 14 15 NORTHERN ITALY. <GEN>. ML 2.2 (GEN), 2.0 (LOG). 15 14 08 20.56 4.507 N 75.642 W 5 6 COLOMBIA. <RSNC>. ML 2.5 (RSNC).15 14 24 23.7t 34.067 S 70.379 W 9 12 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.7 (GUC). 15 14 28 46.9t 37.532 N 118.813 W 6 12 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.2 (GM), 3.4

(BRK) .15 14 30 40.16 44.351 N 7.193 E 16 8 NORTHERN ITALY. <GEN>. ML 1.8 (GEN). 15 14 33 29.9t 34.278 S 70.141 W 10 10 CHILE-ARGENTINA BORDER REGION. <GUC>. 15 14 36 54.8t 37.526 N 118.832 WO 14 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.3 (GM), 3.5

(BRK).15 14 58 36.3t 46.660 N 7.340 E 2 13 SWITZERLAND. <STR>. ML 2.4 (LOG), 2.2 (STR). 15 15 08 42.8t 37.525 N 118.817 W 5 11 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.9 (GM) . ML 3.0

(BRK).15 15 36 02.Ot 34.050 N 116.350 W 1 4 SOUTHERN CALIFORNIA. <PAS-P>. ML 2.8 (PAS). 15 15 58 34.06 33.736 S 70.353 W 111 11 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.5 (GUC). 15 15 59 55.96 37.525 N 118.812 W 1 20 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.6 (GM), 3.6

(BRK). Double event.15 16 20 08.0? 45.55 N 26.53 E 150 G 0.6 5 ROMANIA15 16 21 35.0* 8.156 S 74.182 W 150 ? 3.6 1.1 14 PERU-BRAZIL BORDER REGION 15 17 07 55.7* 6.827 S 127.302 E 369 ? 4.6 1.4 9 BANDA SEA15 17 13 41.7t 36.124 S 71.478 W 156 9 CENTRAL CHILE. <GUC>. MD 2.8 (GUC).15 17 28 00.4t 33.853 S 70.858 W 79 13 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.5 (GUC). 15 17 28 05.Ot 37.513 N 118.831 W 8 7 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.1 (GM) . 15 17 47 05.66 37.490 N 118.839 W 2 9 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.1 (GM) . ML 3.0

(BRK).15 17 54 08.7t 37.507 N 118.833 W 8 4.5 115 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. Mw 4.6 (BRK). Felt

at Arnold, Isleton, Soulsbyvilie and other parts of the San Joaquin Valley.Moment Tensor (BRK): Dep 8; Principal axes (scale 10**15 Nm): (T) Val=9.49, Plg=17, Azm=250; (N) Val=0.00, Plg=62, Azm=15; (P) Val=-9.49, Plg=22, Azm=153; Best double couple: Mo=9.5*10**15 Nm; NP1: Strike=201, Dip=86, Slip=-28; NP2:

- - Strike=293, Dip=62, Slip=-176. 15 18 13 32. 9t 37.020 N 3.710 W 5 7 SPAIN. <MDD>. mbLg 1.8 (MDD). 15 18 31 53.46 37.505 N 118.826 W 5 9 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.0 (GM). Ml. 3.0

(BRK).15 18 48 33.7? 51.32 N 16.00 E 5 G 1.0 6 POLAND15 19 00 09.7t 39.000 N 24.480 E 30 13 AEGEAN SEA. <ATH>. ML 3.4 (ATH). 15 19 02 03.6& 44.695 N 7.235 E 19 10 NORTHERN ITALY. <GEN>. ML 2.1 (GEN). 15 19 06 5£.2t 43.010 N 0.680 W 2 G 13 PYRENEES. <STR>. ML 2.8 (STR), 2.3 (LOG). 15 19 08 2C.9% 36.667 N 8.257 W 10 G 0.7 18 WEST OF GIBRALTAR. mbLg 2.6 (MDD). 15 19 15 33. 3& 37.531 N 118.824 W 3 14 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.3 (GM) , 3.5

(BRK).15 19 20 CS.Ot 36.290 N 22.050 E 3 5 SOUTHERN GREECE. <ATH>. MD 3.1 (ATH). 15 19 27 IS.7- 2.756 N 126.237 E 33 N 3.9 1.4 11 NORTHERN MOLUCCA SEA 15 19 41 2T.7* 38.291 N 74.052 E 134 ? 3.9 1.2 14 TAJIKISTAN-XINJIANG BORDER REG. 15 19 41 42.£& 46.400 N 7.200 E 2 4 SWITZERLAND. <LDG>. ML 1.9 (LOG). 15 19 49 44.6 17.750 S 178.749 W 561 D 4.5 0.9 76 FIJI ISLANDS REGION 15 20 11 35.1& 37.534 N 118.825 W 8 14 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.1 (GM) . >C. 3.2

(BRK).15 20 45 :3.1& 40-470 N 29.065 E 10 3 9 TURKEY. <ISK>. XD 3.3 (ISK). 15 20 58 55. OS: 40.3-60 N 125.130 W 0 3.5 70 OFF COAST OF NORTHERN CALIFORNIA. <GM-P>. Mw 4.0 (BRK). >C.

4.0 (GM), 4.0 (BRK). Felt at Eureka. Scalar Moment (BRK): Mo=l.3*10**15 Nm.

MAY 1999

15 21 24 57.64 33.136 S 15 21 40 10.46 37.490 N

70.306 W 118.848 W

15 21 56 46.54 37.550 N 118.812 W

15 22 00 18.74 40.320 S15 22 44 46.64 43.304 N15 22 49 36.94 40.220 S15 23 34 36.74 37.487 N

15 23 38 34.4* 33.933 N15 23 46 21.84 37.484 N16 00 13 07.1 45.526 N

174.440 E 1918.939 E 8

174.390 E 33 N118.830 W 5

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16 00 44 26.24 37.473 N 118.841 W

16 00 50 10.86 61.767 N 16 00 51 20.4 4.751 S

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CHILE-ARGENTINA BORDER REGION. < CALIFORNIA-NEVADA BORDER REGION.(BRK).

CALIFORNIA-NEVADA BORDER REGION.(BRK). Double event.

COOK STRATT, NEW ZEALAND. <WEL>. NORTHWESTERN BALKAN REGION. <PDG>. COOK STRAIT, NEW ZEALAND. <WEL>. CALIFORNIA-NEVADA BORDER REGION.(BRK).

NEAR S. COAST OF HONSHU, JAPAN CALIFORNIA-NEVADA BORDER REGION. NORTHWESTERN BALKAN REGION. ML 4.(TRI).

CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.1 (GM). ML 3.1(BRK).

SOUTHERN ALASKA. <AEIC>. ML 4.0 NEW BRITAIN REGION, P.N.G. Mw 7.

(GS). Felt strongly on the Gazelle Peninsula. Also felt in other part.s of New Britain and on New Ireland.

Broadband Source Parameters (GS): Dep 46; NP1: Strike=280, Dip=40, Slip=100; NP2: Strike=87, Dip=51, Slip=82; Radiated energy 1.0*10**14 Nm. Two events about 6 seconds apart. Depth based on second event.

Moment Tensor (GS): Dep 45; Principal axes (scale 10**19 Nm): (T) Val=3.99, Plg=77, Azm=358; (N) Val=0.02, Plg=3, Azm=256; (P) Val=~4.01, Plg=12, Azm=165; Best double couple: Mo=4.0*10**19 Nm; NP1: Strike=252, Dip=33, Slip=85; NP2: StrOce=78, Dip=57, Slip=93.

Centroid, Moment Tensor (HRV): Centroid origin time 00:51:32.1; Lat 4.99 S; Lon 152.76 E; Dep 42.0 Bdy; Half- duration 8.9 sec; Principal axes (scale 10**19 Nm): (T) Val=4.40, Plg=72, Azm=337; (N) Val=0.15, Plg=3, Azm=77 ; (P) Val=-4.54, Plg=17, Azm=167; Best double couple: MO=4.5*10«*19 Nm; NP1: Strike=262, Dip=28, Slip=96; NP2: Strike=75. Dip=62, Slip=87.

Scalar Moment (PPT): Mo=4.0*10**19 Nm.CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.9 (GM). NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.4 (GUC). PYRENEES. <LDG>. ML 2.2 (LOG), 2.2 (STR). BONIN ISLANDS REGION CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.1 (GM), 3.3

(BRK).SOUTHERN ALASKA. <AEIC>. CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.1 (GM). ML 3.2(BRK).

CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.2 (GM), 3.5(BRK).

FIJI ISLANDS REGION FIJI ISLANDS REGION TONGA ISLANDSKASHMIR-XIZANG BORDER REGIONNEAR SOUTH COAST OF FRANCE. <GEN>. ML 1.7 (GEN). CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.1 (GM). CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.0 (GM). ML 3.0(BRK).

SPAIN. <MDD>. mbLg 2.2 (MOD).CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.9 (GM) . CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.8 (GM) . CHILE-ARGEHTINA BORDER REGION. <GUC>. MD 2 .8 (GUC). SWITZERLAND. <LDG>. ML 2.5 (LOG), 2.4 (STR). VANUATU ISLANDS CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.0 (GM). ML 3.1(BRK).

CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.1 (GUC). CENTRAL ALASKA. <AEIC>. ML 2.6 (AEIC). NORTHWESTERN BALKAN REGION. <PDG>. MD 2.0 (PDG). CENTRAL ALASKA. <AEIC>. ML 3.7 (AEIC), 3.6 (PMR). Feltstrongly at Talkeetna.

NORTHERN ITALY. <GEN>. ML 2.3 (GEN). CENTRAL ALASKA. <AEIC>. ML 2.8 (AEIC), 3.0 (PMR). TURKEY. <ISK>. MD 2.8 (ISK).SOUTHERN A1ASKA. <AEIC>. ML 3.2 (AEIC), 3.3 (PMR). CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.3 (GUC). KYRGYZSTAN-XINJIANG BORDER REG. NEAR COAST OF CHIAPAS, MEXICO. ML 4.1 (CASC). MEXICO-GUATEMALA BORDER REGION AUSTRIA. ML 2.8 (LOG), 2.8 (VIE), 2.7 (GRF), 2.7 (STR), 2.5

(FBB), 2.5 (FUR).NORTHWESTERN BALKAN REGION. <PDG>. ML 2.8 (PDG). SWITZERLAND. <LDG>. ML 2.0 (LDG).CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.3 (GM) . NEW BRITAZX REGION, P.N.G. CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.2 (GM), 3.3(BRK).

GREECE-ALBANIA BORDER REGION. ML 3.9 (ATM). CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.0 (GM) . ML 3.1(BRK).

MYANMAR CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.2 (GM), 3.2(BRK).

STRAIT OF 5IBRALTAR. <MDD>. mbLg 2.0 (HDD). FRANCE. <1_DG>. ML 2.3 (LDG), 2.3 (STR).

MAY 1999 PAGE 18

16 14 51 21.lt 37.523 N 118.822 W 5 12 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.9 (GM) .16 14 59 02.1* 37.530 N 70.360 E 56 ? 4.0 1.0 13 AFGHANISTAN-TAJIKISTAN BORD REG.16 15 04 54.8 12.870 N 124.772 E 33 N 4.5 0.8 26 SAMAR, PHILIPPINE ISLANDS16 15 25 53.8 2.642 S 138.217 E 59 D 6.1 6.2 0.9 246 IRIAN JAYA, INDONESIA. Mw 6.4 (HRV) , 6.3 (GS) . Me 6.4 (GS) .

Felt (III) at Genyem and Sarmi. Also felt (III) at Serui, Yapen.Broadband Source Parameters (GS): 3ep 41; NP1: Strike=110, Dip=55, Slip=60; NP2: Strike=335, Dip=45, Slip=126; Radiated energy 1.0*10**14 Nra.

Moment Tensor (GS): Dep 47; Principal axes (scale 10**18 Nra) : (T) Val=3.53, Plg=64, Azm=327; (N) Val=0.32, Plg=25, Azm=130; (P) Val=-3.85, Plg=7, Ar==223; Best double couple: Mo=3.7*10**18 Nm; NP1: Strike=339, Dip=44, Slip=127; NP2: Strike=112, Dip=57, Slip=60.

Centroid, Moment Tensor (HRV): Centreid origin time 15:25:57.9; Lat 2.50 S; Lon 138.44 E; Dep 44.0 Bdy; Half- duration 3.7 sec; Principal axes (scale 10**18 Nm) : (T) Val=3.69, Plg=66, Azm=314; (N) Val=0.26, Plg=23, Azm=127; (P) Val=-3.95, Plg=3, Azai=218; Best double couple: Mo=3.8*10**18 Nm; NP1: Strike=330. Dip=47, Slip=123; NP2: Strike*107, Dip=52, Slip=60.

Scalar Moment (PPT): Mo=2.4*10**18 Nm.16 16 13 08.9t 18.120 N 67.770 W 8 7 MONA PASSAGE. <MPR>. MD 2.8 (MPR) .16 16 16 15.9t 17.930 N 67.750 W 51 6 MONA PASSAGE. <MPR>. MD 2.6 (MPR).16 16 23 41.9t 61.800 N 151.290 W 74 2.9 41 SOUTHERN ALASKA. <AEIC>.16 16 45 12.6& 37.531 N 118.813 W 5 11 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.0 (GM) .16 16 56 04.9t 32.290 S 70.283 N 124 11 CHILE-ARGENTINA BORDER REGION. <GUO.16 17 56 13.5t 33.265 S 70.821 W 78 12 CHILE-ARGENTINA BORDER REGION. <GUO.16 18 04 33.1* 38.706 N 75.594 E 33 N 3.9 1.1 10 SOUTHERN XINJIANG, CHINA16 18 22 00.Ot 11.267 N 61.685 W 22 - 5 WINDWARD ISLANDS. <TRN>. MD 3.3 (TRN) .16 18 49 50.9 57.991 N 157.067 W 33 N 3.6 0.7 19 ALASKA PENINSULA. ML 4.1 (PMR) .16 18 51 04. lie 34.070 S 72.326 W 2 9 NEAR COAST OF CENTRAL CHILE. <GUC>.16 19 06 50. 6t 34.064 S 72.397 W 34 8 NEAR COAST OF CENTRAL CHILE. <GUC>.16 19 54 25.6* 29.459 N 51.974 E 33 N 3.9 1.0 10 SOUTHERN IRAN16 19 55 37.8& 37.572 N 118.809 W 6 11 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.0 (GM) .16 20 11 23.3* 12.380 S 166.975 E 284 ? 4.4 1.2 46 SANTA CRUZ ISLANDS16 20 22 52.Ot 45.390 N 16.240 E 0 G 4 NORTHWESTERN BALKAN REGION. <ZAG>. ML 2.2 (VIE).16 20 56 54.6t 38.062 N 31.655 E 10 G 5 TURKEY. <ISK>. MD 3.4 (ISK) .16 21 20 01.6 41.965 N 142.315 E 72 D 4.7 0.8 84 HOKKAIDO, JAPAN REGION. Felt (III. JMA) in the Shizunai area

and (I JMA) in many other parts of southern Hokkaido. Also felt (I JMA) in eastern Aomori Prefecture, Honshu.

16 21 23 28.4& 17.177 N 100.057 W 72 9 GUERRERO, MEXICO. <UNM>. MD 3.8 (UNM) .16 21 33 45. 8t 37.200 N 3.730 W 17 8 SPAIN. <MDD>. nbLg 1.6 (MDD) .16 21 45 55.3t 59.410 N 152.240 W 81 47 SOUTHERN ALASKA. <AEIC>.16 21 51 13.4* 43.663 N 140.181 E 224 ? 3.9 0.5 12 HOKKAIDO. JAPAN REGION16 21 54 13.lt 34.301 S 70.334 W 119 12 CHILE-ARGENTINA BORDER REGION. <GUO.16 22 10 53.5 9.534 S 106.637 E 33 N 4.6 1.1 33 SOUTH OF JAWA, INDONESIA16 22 27 48.2* 46.057 N 14.772 E 10 G 0.2 5 NORTHWESTERN BALKAN REGION. ML 1.9 (VIE).16 22 38 02.5t 37.469 N 118.847 Vi 8 37 CALIFORNIA-NEVADA BORDER REGION. O«-P>. ML 3.3 (GM) .16 22 45 32.9& 37.469 N 118.847 W 8 20 CALIFORNIA-NEVADA BORDER REGION. «24-P>. ML 3.3 (GM) , 3.4

(BRK).16 23 12 15.2t 37.527 N 118.819 W 7 19 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.2 (GM), 3.4

(BRK).16 23 17 11.1 32.568 N 136.544 E 451 4.5 0.9 46 SOUTHEAST OF SHIKOKU, JAPAN16 23 27 05.9t 37.524 N 118.820 W 7 14 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.1 (GM) . ML 3.1

(BRK).16 23 36 01.5 29.402 N 52.043 E 33 N 4.6 1.0 60 SOUTHERN IRAN17 00 04 06.8* 5.356 S 141.792 E 33 N 1.3 10 NEW GUINEA, PAPUA NEW GUINEA17 00 19 41.46 35.671 N 119.714 N 16 4 CENTRAL CALIFORNIA. <GM-P>. MD 2.5 (GM) . ML 2.8 (PAS).17 00 25 34.1* 52.336 S 19.802 E 10 G 1.3 11 SOUTHWEST OF AFRICA17 00 30 33.8* 52.186 S 20.347 E 10 G 0.5 7 SOUTH OF AFRICA17 00 47 39.4t 33.391 S 70.189 W 123 13 CHILE-ARGENTINA BORDER REGION. <GUO. MD 2.2 (GUC) .17 00 48 27.4t 46.300 N 7.200 E 2 16 SWITZERLAND. <LDG>. ML 2.5 (LOG).17 01 01 59.4* 44.062 N 10.595 2 10 G 1.3 22 NORTHERN ITALY. ML 2.7 (LDG).17 01 44 48.6t 17.701 N 99.061 W 73 7 GUERRERO, MEXICO. <UNM>. MD 3.7 (CXM) .17 02 34 00.8* 0.351 S 132.717 E 33 N 4.7 1.1 19 IRIAN JAYA REGION, INDONESIA17 03 01 32.2t 42.874 N 18.522 E 5 9 NORTHWESTERN BALKAN REGION. <PDG>. MD 2.2 (PDG) .17 03 29 28.7* 18.403 N 110.370 E 33 N 4.2 1.2 16 HAINAN ISLAND, CHINA. Felt on Hainan Island.17 03 46 00.lt 34.209 S 70.356 W 118 7 CHILE-ARGENTINA BORDER REGION. <GDO.17 03 55 45.3t 37.523 N 118.820 W 5 12 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.0 (GM) .17 04 12 09.3? 52.17 S 20.30 2 10 G 0.8 6 SOUTH OF AFRICA17 04 37 36.8t 14.927 N 61.360 W 184 15 - WINDWARD ISLANDS. <TRN>. MD 3.6 (THK) , 3.0 (FDF) .17 04 40 23.lt 46.000 N 2.900 E 3 10 FRANCE. <LDG>. ML 1.8 (LOG).17 04 52 34.0 42.284 N 87.917 E 33 N 4.2 0.7 16 NORTHERN XINJIANG, CHINA17 04 53 54.8& 37.950 S 174.470 2 33 N 12 NORTH ISLAND, NEW ZEALAND. <WEL>. S£L 4.5 (WEL).17 04 54 58.1 58.991 N 163.667 E 72 D 4.2 0.8 11 KAMCHATKA17 05 03 11.86 60.281 N 153.695 W 192 3.2 47 SOUTHERN ALASKA. <AEIC>.17 06 03 23.7t 37.140 N 3.690 V 0 G 17 SPAIN. <MDD>. jnbLg 2.6 (XDD).17 06 09 12.9t 31.891 S 70.594 W 102 12 CHILE-ARGENTINA BORDER REGION. <GCO. MD 2.7 (GUC).17 06 17 27.4 6.799 N 72.963 X 170 D 4.3 0.7 36 NORTHERN COLOMBIA17 06 17 33.3t 37.526 N 118.827 W 4 11 CALIFORNIA-NEVADA BORDER REGION. O*-P>. MD 2.8 (GM) .17 06 37 19.lt 37.511 N' 118.826 W 4 3.9 61 CALIFORNIA-NEVADA BORDER REGION. <3«-P>. Mw 4.0 (BRK). ML

4.3 (GM), 4.3 (BRK).Moment Tensor (BRK): Dep 4; Principal axes (scale 10**15 Nm) : (T) Val = 1.10, Plg=l, Azm=82; !N) Val=0.00, Plg=5, Azm=352; (P) Val=-1.10, ?lg=85, Aza=181,- Best double couple: Mo=l.I*10**15 Nn.; NP1: Strike=347, Dip=46, Slip=-97; NP2 : Strike=l", Dip=4i. Slip=-83.

17 07 10 28.8& 37.518 X 118.822 X 3 11 CALIFORNIA-NEVADA BORDEK REGION. <3M-P>. MD 2.9 (GM) .1~ 07 14 20.7* 2.856 N 79.713 n 33 K 4.3 O.s 20 SOUTH OF PANAMA17 07 22 46.5& 37.514 N 118.823 <f 3 21 CALIFORNIA-NEVADA BORDER REGION. O5-P>. ML 3 .1 (GM) , 3.4

(BRK).17 07 35 36.5 43.623 N 21.093 Z 10 G .1-1 30 NORTHWESTERN BALKAN REGIC*!. MD 3.4 (PDG).

MAY 1999

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NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.5 (GUC). CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.5 (GM) , 3.6(BRK).

NEW BRITAIN REGION, P.N.G. Mw 5.5 (HRV) . Centroid, Moment Tensor (HRV): Centroid origin tine09:06:39.0; Lat 5.29 S; Lon 153.04 E; Dep 15.0 Fix; Half- duration 1.3 sec; Principal axes (scale 10**17 Na): (T)Val=2.05, Plg=58, Azm=357; (N) Val=0.17, Plg=2, .Xza=264; (P) Val=-2.22. Plg=32, Azm=173; Best double couple:Mo=2.1*10**17 Nm; NP1: Strike=257, Dip=13, Slip=83; NP2:Strike=85, Dip=77, Slip=92.

MARIANA ISLANDS CALIFORNIA-NEVADA BORDER REGION. <PAS-P>. ML 3.5 (GS).Double event. Small precursor about 13 seconds prior tothis event.

NEW BRITAIN REGION, P.N.G. Mw 6.6 (HRV), 6.4 (GS). Me 6.0(GS) .

Broadband Source Parameters (GS): Dep 27; NP1: Strike=85,Dip=80, Slip=90; NP2: Strike=265, Dip=10, Slip=90; Radiatedenergy 2.2*10**13 Nm.

Moment Tensor (GS): Dep 27; Principal axes (scale 10**18Nm): (T) Val=5.01, Plg=64, Azm=348; (N) Val=-0.08. Plg=10.Azm=100; (P) Val=-4.94, Plg=23, Azm=195; Best doublecouple: Mo=5-0*10**18 Nm; NP1: Strike=305, Dip=24,Slip=117; NP2: Strike=96, Dip=69, Slip=79.

Centroid, Moment Tensor (HRV): Centroid origin tiae 10:08:02.0; Lat 5.43 S; Lon 152.82 E; Dep 26.0 Bdy; Half-duration 5.1 sec; Principal axes (scale 10**18 Na) : (T)Val=8.55, Plg=58, Azm=339; (N) Val=0.12, Plg=8, Azm=82; (P)Val=-8.67, Plg=3l. Azm=177; Best double couple:Mo=8.6*10**18 Nm; NP1: Strike=292, Dip=16, Slip=121; NP2: Strike=80, Dip=76, Slip=82.

Scalar Moment (PPT): Mo=2.6*10**18 Nm. NEW BRITAIN REGION, P.N.G. TURKEY. <ISK>. MD 2.7 (ISK). HOKKAIDO, JAPAN REGION. Felt (I JMA) in northern AomoriPrefecture, Honshu.

NEW BRITAIN REGION, P.N.G. NEW BRITAIN REGION, P.N.G. NEW BRITAIN REGION, P.N.G. NEW BRITAIN REGION, P.N.G. NEAR EAST COAST OF KAMCHATKANORTHERN CALIFORNIA. <GM-P>. ML 3.3 (GM), 3.2 (BRK). SOLOMON ISLANDS CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3 .-0 (GM) . ML 3.2(BRK).

NEW BRITAIN REGION, P.N.G. NEW IRELAND REGION, P.N.G. NEW IRELAND REGION, P.N.G. TURKEY. <ISK>. MD 3.0 (ISK).CENTRAL ALASKA. <AEIC>. ML 3.0 (AEIC), 3.2 (PMR). NORTHEASTERN INDIA NORTH OF SEVERNAYA ZEMLYASWITZERLAND. <FBB>. ML 2.6 (LDG), 2.3 (FBB), 2.3 (STR). NORTHWESTERN BALKAN REGION. MD 2.8 (PDG). CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.0 (GM) . ML 3.0(BRK).

GERMANY. ML 2.5 (LDG). CENTRAL ALASKA. <AEIC>. SOUTHERN SUMATERA, INDONESIACALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.2 (GM) , 3.3 (BRK).

ROMANIANEAR COAST OF CENTRAL CHILE. <GUC>. KD 3.5 (GUC). NEW BRITAIN REGION, P.N.G. Mw 5.6 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 17:04:19.9; Lat 5.18 S; Lon 153.03 E; Dep 15.0 Fix; Half- duration 1.4 sec; Principal axes (scale 10**17 Km): (T) Val=2.32, Plg=59, Azm=347; (N) Val=0.27, Plg=2, Azm=254; (P) Val=-2.58, Plg=31, Azm=162; Best double couple: Mo=2.5*10**17 Nm; NP1: Strike=245, Dip=14, Slip=81; NP2: Strike=74, Dip=76, Slip=92.

GULF OF ALASKA. ML 3.0 (AEIC).CENTRAL ALASKA. <AEIC>. ML 4.8 (AEIC), 4.9 (PMR). Felt (IV) at Kaltag and Unalakleet; (III) at Galena.

NEW BRITAIN REGION, P.N.G.SOUTH OF HONSHU, JAPANNEW BRITAIN REGION, P.N.G.NEW BRITAIN REGION, P.N.G.OFF COAST OF CENTRAL CHILE. <GUC>. MD 4.2 (GUC).NEW BRITAIN REGION, P.N.G.SOUTHERN GREECE. <ATH>. ML 3.2 (ATH).OFF COAST OF GUERRERO, MEXICO. <UNM>. MD 3.8 (U>K).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 4.2 (GUC) .SOOTH OF ALASKA. <AEIC>. ML 4.0 (AEIC).GUERRERO, MEXICO. <UNM>. MD 3.8 (UNM).CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.9 f3M).NEAR COAST OF NICARAGUA. MD 4.3 (CASC).CENTRAL EAST PACIFIC RISETURKEY. <ISK>. MD 3.2 (ISK).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.5 (GUC 1 .CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2 . S .C-K).NEAR COAST OF NICARAGUA. MD 4.1 (CASC).

MAY 1999

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SOLOMON ISLANDSLEEWARD ISLANDS. <FDF>. MD 3.8 (TRN) , 3.7 (PDF). Felt (III) on Guadeloupe.

GERMANY. ML 2 . 5 (VIE), 2.3 (STR) , 2.3 (LDG).CHILE-ARGENTINA BORDER REGION. <GUC>.CHILE-ARGENTINA BORDER REGIONCALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3 . 0 (GM) . ML 3 . 0 (BRK) .

PYRENEES. <STR>. ML 2.2 (STR),KODIAK ISLAND REGION. <AEIC>.PYRENEES. <LDG>. ML 2.3 (LDG), 2.2 (STR). Felt (I) at Cauterets , France .CHILE-ARGENTINA BORDER REGION.SOUTH OF ALASKA. <AEIC>. ML 4.1SOUTH OF ALASKA. <AEIC>. ML 3.1CHILE-ARGENTINA BORDER REGION.CARLSBERG RIDGEPOLAND. ML 3.0 (VIE).TAIWAN REGION. Felt (III JMA) on Lan Yu. Also felt (III JMA) at Cheng-kung and (II JMA) at Kao-hsiung and Tai-tung. Felt in much of southern Taiwan.IRIAN JAYA, INDONESIANEW BRITAIN REGION, P.N.G. Mw 6.1 (HRV) .Centre id, Moment Tensor (HRV) : Centre id origin time 04:19:58.8; Lat 5.89 S; Lon 148.60 E; Dep 124.4; Half- duration 2.6 sec; Principal axes (scale 10**18 Nm) : (T) Val=1.41, Plg=26, Azm=190; (N) Val=0.02, Plg=57, Azm=51; (P) Val=-1.42, Plg=19, Azm=289; Best double couple: Mo=1.4*10**18 Nm; NP1: Strike=331, Dip=58, Slip=6; NP2 : Strike=238, Dip=85, Slip=148.LEEWARD ISLANDS. <FDF>. MD 3.3 (PDF) .GREECE. <ATH>. MD 3.2 (ATH) .CENTRAL EAST PACIFIC RISENEW BRITAIN REGION, P.N.G. Mw 5.8 (HRV), 5.7 (GS) . ML 5.7 (PMG) .

Moment Tensor (GS) : Dep 28; Principal axes (scale 10**17 Nm) : (T) Val=3.71, Plg=70, Azm=346; (N) Val=0.13, Plg=5, Azm=90; (P) Val=-3.84, Plg=19, Azm=182; Best double couple: Mo«3.8*10**17 Nm; NP1: Strike=280, Dip=26, Slip=101; NP2: Strike=87, Dip=64, Slip=84.

Centre id, Moment Tensor (HRV) : Centre id origin time 06:16:15.3; Lat 5.14 S Fix; Lon 153.00 E Fix; Dep 21.8 Fix; Half-duration 2.0 sec; Principal axes (scale 10**17 Nm) : (T) Val=5.78, Plg=62, Azm=0; (N) Val=0.49, Plg=5. Azm=259; (P) Val«-6.27, Plg=27, Azm=167; Best double couple: Mo=6.0*10**17 Nm; NP1: Strike=243, Dip*19, Slip=73; NP2 : Strike=81, Dip*72, Slip»96.

TRISTAN DA CUNHA REGION. Mw 5 . 4 (HRV) .Centroid, Moment Tensor (HRV) : Centroid origin tiae 07:16:15.6; Lat 35.02 S; Lon 14.73 W; Dep 15.0 Fix; Half- duration 1.2 sec; Principal axes (scale 10**17 Nm) : (T) Val=1.74, Plg«3, Azm=314; (N) Val=-0.21, Plg=19, Azm=45; (P) Val=-1.53, Plg=71, Azm=214; Best double couple: Mo=1.6*10**17 Nm; NP1: Strike=24, Dip=45. Slip=-118; NP2 : Strike=241, Dip=51, Slip=-65.

NEW IRELAND REGION, P.N.G.SWITZERLAND. <FBB>. ML 2.2 (STR), 2.1 (FB3) .EASTERN NEW GUINEA REG., P.N.G.NORTHERN COLOMBIACHILE-ARGENTINA BORDER REGION. <GUO. MD 3.1 (GUC).PAKISTANPOLAND. MG 2.8 (WAR).NORTH ISLAND, NEW ZEALAND. Mw 5.8 (GS) , 5.7 (HRV). Felt strongly at Wellington and as far north as Gisborne. Also felt on the South Island as far as Christchurch.

Moment Tensor (GS) : Dep 282; Principal axes (scale 10**17 Nm) : (T) Val=5.23, Plg*18, Azm=40; (N) Val=-0.78, Plg=2, Azm=130; (P) Val=-4.45, Plg«72, Azm=225; Best double couple: Mo=4.8*10**17 Nm; NP1: Strike-127, Dip=27, Slip=-93; NP2: Strike*311, Dip=63, Slip 88.

Centroid, Moment Tensor (HRV) : Centroid origin time 09119:37.9; Lat 38.47 S; Lon 175.29 E; Dep 275.9; Half- duration 1.7 sec; Principal axes (scale 10**17 Nm) : (T) Val=4.32, Plg=16, Azm=41; (N) Val=0.39, Plg=8, Azm=309; (P) Val=-4.72, Plg=73, Azm=193; Best double couple: Mo=4.5*10**17 Nm; NP1: Strike=142, Dip-30. Slip=-74; NP2 : Strike=304, Dip»61, Slip=-99.

NORTHERN XINoIANG. CHINA SOUTHERN IRAN SOUTHERN IRANGERMANY. <FBS> . ML 2.7 (VIE), 2.4 (FBB) , 2.4 (ST?.) . NORTHWESTERN BALKAN REGION. <PDG>. MD 1 . 4 (PDG) .

0 (GEN).1 . 5 (PDG).

NORTHERN ITALY. <GEN>. ML 2 NORTHWESTERN BALKAN REGION. <PDG>. MD NORTHERN ITALY. <GEN>. ML 2 . 1 (GEN). NEW IRELAND REGION, P.N.G. NORTHERN ITALY. <GEN>. ML 1.7 NEW BRITAIN REGION, P.N.G.

(GEN). Mw 5.3 (HRV)

CancroidCentroid, Mcnent Tensor (HRV) : Cancro crigin riae 14:38:32.3; Lat 5.00 S; Lon 153.29 E; Dep 37.4; Half- duration l.C sec,- Principal axes (scale 10**!' Niu, : (T) Val=0.81, ?lg=58, Azra=329; (N) Val=0.25/ ?lg=fc, *zm=73; (P)

Val=-1.06, ?lg=30, Azm=168; Best double couple:

HAY 1999

Mo=9.4*10**16 Nm; NP1: Strike=283, Dip=16, Slip=121; NP2: Strike=7l, Dip=76, Slip=81.

18 14 54 55.6 50.507 N 18.881 E 5 G 0.7 8 POLAND. ML 3.2 (VIE). 18 14 56 23.3t 37.522 N 118.824 W 5 17 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.1 (G3J. , 3.4

(BRK). 18 14 57 56.1 5.380 S 153.046 E 33 N 5.0 5.2 1.1 58 NEW IRELAND REGION, P.N.G. Mw 5.4 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 14:57:59.3; Lat 5.74 S; Lon 152.95 E; Dep 30.0 Bay: Half- duration 1.2 sec; Principal axes (scale 10**17 Nm): (T) Val=1.34, Plg»63, Azm=353; (N) Val=0.06, Plg=l, Az2E=260; (P) Val=-1.40, Plg=27, Azm=l70; Best double couple: Mo=1.4*10**l7 Nm; NP1: Strike=256, Dip=18, Slip=85; NP2: Strike=81, Dip=72, Slip=91.

18 15 04 59.4t 63.553 N 150.060 W 137 54 CENTRAL ALASKA. <AEIC>. 18 15 30 41.0* 5.359 S 153.127 E 33 N 1.0 8 NEW IRELAND REGION, P.N.G. 18 16 06 22.9t 34.256 S 70.150 W 7 11 CHILE-ARGENTINA BORDER REGION. <:GUC>. 18 16 13 30.2* 7.583 N 59.454 E 10 G 4.8 1.3 21 CARLSBERG RIDGE 18 16 17 46.6t 40.250 N 27.854 E 10 G 5 TURKEY. <ISK>. MD 2.7 (ISK). 18 17 09 18.1* 36.924 N 73.070 E 44 ? 4.1 1.3 19 NORTHWESTERN KASHMIR18 18 23 22.4t 17.602 N 101.385 W 10 7 NEAR COAST OF GUERRERO, MEXICO. <UNM>. MD 3.8 (UNM}. 18 18 34 10.lt 31.688 S 71.756 W 14 11 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC) . 18 18 42 35.Ot 61.727 N 151.707 W 102 33 SOUTHERN ALASKA. <AEIC>. 18 18 56 49.4t 48.090 N 7.620 E 2 4 FRANCE. <STR>. ML 1.8 (STR).18 18 58 47.Ot 37.464 N 118.840 W 4 10 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.1 (Ot) . 18 19 28 28.8 2.563 N 120.897 E 675 4.8 0.9 56 CELEBES SEA18 19 39 57.3t 15.254 N 95.819 W 4 7 NEAR COAST OF OAXACA, MEXICO. <UNM>. MD 4.1 (UNM). 18 19 52 59.9 5.625 N 123.855 E 33 N 5.8 5.6 1.0 182 MINDANAO, PHILIPPINE ISLANDS. Mw 5.9 (HRV), 5.8 (GS) . Me 5.9

(GS).Broadband Source Parameters (GS) : Dep 18; NP1: Strixe=135, Dip=30, Slip=90; NP2: Strike=315, Dip=60, Slip=90; Radiated energy 1.7*10**13 Nm.

Moment Tensor (GS): Dep 17; Principal axes (scale 10**17 Nm) : (T) Val=4.72, Plg=68, Azm=188; (N) Val=0.50, ?lg=20, Azm=345; (P) Val=-5.22, Plg=8, Azm=78; Best double couple: Mo=5.0*10**17 Nm; NP1: Strike=190, Dip=41, Slip=122; NP2: Strike=331, Dip=56, Slip=65.

Centroid, Moment Tensor (HRV): Centroid origin time 19:53:03.0; Lat 5.64 N; Lon 123.74 E; Dep 19.0 Bdy; Half- duration 2.0 sec; Principal axes (scale 10**17 Nm) : (T) Val=7.78, Plg=84, Azm=l-56; (N) Val=-0.68, Plg=6, Azm=331; (P) Val=-7.09, Plg=l, Azm=61; Best double couple: Mo=7.4*10**17 Nm; NP1: Strike=157, Dip=45, Slip=99; NP2: Strike=325, Dip=46, Slip=81.

18 20 00 11.5t 37.378 N 28.410 E 10 G 5 TURKEY. <ISK>. MD 3.0 (ISK).18 20 08 31:9* 40.371 N 125.955 W 10 G 0.7 20 OFF COAST OF NORTHERN CALIFORNIA. ML 3.6 (BRK). 18 20 20 16.0 85.632 N 86.146 E 10 G 5.1 5.3 1.0 177 NORTH OF SEVERNAYA ZEMLYA. Mw 5.5 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 20:20:19.8; Lat 85.55 N; Lon 84.51 E; Dep 15.0 Fix; Half- duration 1.3 sec; Principal axes (scale 10**17 NnO : (T) Val=2.11, Plg=4, Azm=33; (N) Val=0.47, Plg=25, Az==124; (P) Val=-2.58, Plg=65, Azm=294; Best double couple: Mo=2.3*10**17 Nm; NP1: Strike=98, Dip=46, Slip=-125; NP2: Strike=324, Dip=54, Slip=-59.

18 20 25 52.2t 37.550 N 118.807 W 9 7 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.9 (OS.) . 18 20 33 16.8 13.975 N 145.077 E 33 N 5.0 1.3 48 MARIANA ISLANDS 18 20 36 48.9* 13.806 N 145.132 E 33 N 1.2 11 MARIANA ISLANDS18 20 46 29.2t 60.028 N 140.612 W 2 32 SOUTHEASTERN ALASKA. <AEIC>. ML 3.2 (AEIC), 3.2 (PGC) . 18 20 47 30.3 38.085 N 1.389 W 10 G 0.8 25 SPAIN. mbLg 3.1 (MOD) . Felt (III) at Campos del Rio, Mula

and Piiego; (II) at Abaran, Alcantarilla, Archena, La Alberca, Las Torres de Cotillas, Molina de Segura and Murcia.

18 21 06 28.4t 37.506 N 118.813 W 4 17 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.7 (G3J) , 3.7(BRK).

18 21 10 43.Ot 38.820 N 27.580 E 10 9 TURKEY. <ATH>. MD 3.5 (ATH), 3.1 (ISK). 18 21 37 59.1? 14.95 N 91.28 W 33 N 3.4 1.0 5 GUATEMALA18 21 51 26.9t 37.436 N 28.396 E 10 G 5 TURKEY. <ISK>. MD 3.0 (ISK). 18 21 57 54.3t 39.564 N 28.989 E 10 G 9 TURKEY. <ISK>. MD 2.9 (ISK). 18 22 38 51.lt 35.070 N 3.380 W 15 9 STRAIT OF GIBRALTAR. <MDD>. mbLg 2.1 (MOD). 18 23 24 48.0* 0.392 S 100.164 E 104 D 4.7 1.0 22 SOUTHERN SUMATERA, INDONESIA 18 23 30 05.5t 37.524 N 118.821 W 7 10 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.0 (GM> .18 23 58 02.1 44.200 N 129.198 W 10 G 3.6 0.7 46 OFF COAST OF OREGON19 00 10 25.4t 39.160 N 21.640 E 5 10 GREECE. <ATH>. MD 3.0 (ATH).19 00 26 57.8* 7.657 N 59.613 E 10 G 4.8 1.2 25 CARLSBERG RIDGE19 00 33 07.2t 33.584 S 71.938 W 12 11 NEAR COAST OF CENTRAL CHILE. <GUC>.19 00 34 46.lt 34.287 S 70.138 W 7 9 CHILE-ARGENTINA BORDER REGION. <GUC>.19 01 21 46.0* 33.055 S 179.447 E 271 ? 4.3 0.6 12 SOUTH OF KERMADEC ISLANDS19 01 26 37.4t 34.303 S 70.152 W 7 11 CHILE-ARGENTINA BORDER REGION. <GUC>.19 01 27 46.4* 52.940 N 160.535 E 33 N 4.6 1.0 21 OFF EAST COAST OF KAMCHATKA19 01 37 39.lt 33.957 S 70.144 W 9 8 CHILE-ARGENTINA BORDER REGION. <GUC>.19 01 39 24.5t 33.958 S 70.139 W 10 7 CHILE-ARGENTINA BORDER REGION. <GUC>.19 01 39 49.2t 33.962 S 70.146 W 8 8 CHILE-ARGENTINA BORDER REGION. <GUC>.19 01 40 43.2t 33.952 S 70.130 W 8 8 CHILE-ARGENTINA BORDER REGION. <GUC>.19 01 41 I7.lt 33.957 S 70.158 W 10 11 CHILE-ARGENTINA BORDER REGION. <GUC>.19 01 42 40.4& 33.962 S 70.147 W 8 9 CHILE-ARGENTINA BORDER REGION. <GUC>.19 01 57 52.5t 37.480 N 118.840 W 4 15 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 2.9 (G« , 3.2

(BRK).19 02 06 12.lt 61.349 N 151.005 W 52 28 SOUTHERN ALASKA. <AEIC>. ML 2.9 (AEIC). 19 02 17 14.2% 37.037 N 3.654 W 10 G 0.9 11 SPAIN. mbLg 2.0 (MOD). 19 02 25 03.1* 43.087 N 76.112 E 10 G 4.4 1.1 11 LAKE ISSYK-KUL REGION19 02 33 27.8 43.906 N 7.383 E 10 G 0.5 20 NEAR SOUTH COAST OF FRANCE. ML 2.2 (STR), 2.0 (LEG . 19 02 47 36.8? 29.66 N 51.93 E 33 N 4.2 1.4 17 SOUTH3RN IRAN19 02 49 35.4& 62.269 N 148.849 W 4 25 CENTR..L ,»^ASKA. <AEIC>. ML 2.5 (AEIC), 3.0 (PMR) . 19 03 08 18.1 44.944 N 10.569 E 10 G 1.2 13 NORTHERN ITALY. ML 2.6 (LDG).

MAY 1999 PAGE 22

19 03 33 50.2 14.636 S 73.664 W 71 * 4.3 0.7 36 CENTRAL PERU19 03 50 12.6 44.504 N 7.025 E 10 G 0.8 43 NORTHERN ITALY. ML 2.9 (GEN), 2.8 (STR) , 2.6 (LDG) .19 03 54 54.0* 5.139 S 153.020 E 62 * 4.2 1.0 13 NEW IRELAND REGION, P.N.G.19 03 55 27.4% 37.324 N 4.170 W 33 N 1.2 17 SPAIN. mbLg 2.3 (MOD).19 04 48 11.0 36.444 N 70.092 E 223 D 4.8 0.8 162 HINDU RUSH REGION, AFGHANISTAN19 05 09 43.26 43.110 N 0.300 W 2 10 PYRENEES. <STR>. ML 2.2 (STR), 2.2 (LDG).19 05 33 23.lt 33.234 S 71.560 W 43 15 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 4.3 (GUC) . Felt (III)

at Valparaiso, Villa Alemana and Vina del Mar,- (II) at La Serena, Quillota and Santiago.

19 05 43 51.26 46.700 N 7.400 E 2 7 SWITZERLAND. <LDG>. ML 2.3 (LDG), 2.1 (STR).19 06 02 12.4% 38.084 S 176.159 E 200 G 0.6 18 NORTH ISLAND, NEW ZEALAND19 06 07 14.2* 56.035 N 114.772 E 10 G 4.2 1.2 15 EAST OF LAKE BAYKAL, RUSSIA. Felt (III) at Taksimo and (II)

at Bodaybo.19 06 10 27.0 5.406 S 102.195 E 27 D 5.2 4.8 1.0 55 SOUTHERN SUMATERA, INDONESIA. Mw 5.1 (HRV) .

Centroid, Moment Tensor (HRV): Centroid origin time 06:10:28.5; Lat 5.89 S; Lon 102.08 E; Dep 49.4; Half- duration 1.0 sec; Principal axes (scale 10**16 Mm) : (T) Val=4.94, Plg=48, Azm=94; (N) Val=0.22, Plg=28, Azm=329; (P) Val=-5.16, Plg=29, Azm=222; Best double couple: Mo=5.1*10**16 Nm; NP1: Strike=263, Dip=30, Slip=21; NP2: Strike*154, Dip=80, Slip=118.

19 06 18 38.1* 24.277 S 70.405 W 100 G 4.1 0.8 9 NEAR COAST OF NORTHERN CHILE19 06 26 08.7* 5.482 S 153.091 E 33 N 4.1 1.2 10 NEW IRELAND REGION, P.N.G.19 06 31 33.7* 46.786 N 151.835 E 33 N 4.7 1.2 12 KURIL ISLANDS19 07 13 55.76 35.311 N 118.949 W 15 12 CENTRAL CALIFORNIA. <PAS-P>. ML 2.9 (PAS).19 07 21 23.26 62.062 N 148.370 W 32 22 CENTRAL ALASKA. <AEIC>. ML 2.6 (AEIC) .19 07 48 01.6* 5.183 S 153.182 E 33 N 1.1 7 NEW IRELAND REGION, P.N.G.19 07 50 25.9 40.441 S 173.551 E 176 1.1 28 COOK STRAIT, NEW ZEALAND19 08 44 47.8* 57.247 N 120.417 E 10 G 4.3 1.1 16 SOUTHEASTERN SIBERIA, RUSSIA19 10 24 59.26 34.674 S 70.743 W 99 8 CHILE-ARGENTINA BORDER REGION. <GUC>.19 10 31 34.96 37.505 N 118.825 W 8 45 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.5 (GM) , 3.7

(BRK).19 10 42 19.8* 7.205 S 129.124 E 72 * 4.7 0.9 27 BANDA SEA19 11 33 05.76 40.144 N 29.433 E 14 6 TURKEY. <ISK>. MD 2.7 (ISK).19 12 47 32.06 41.864 N 20.028 E 13 13 ALBANIA. <PDG>. MD 2.6 (PDG) .19 12 58 59.6* 20.249 S 68.934 W 133 * 4.1 0.9 22 CHILE-BOLIVIA BORDER REGION19 13 01 24.3* 36.143 S 96.913 W 10 G 4.4 0.7 12 WEST CHILE RISE19 13 34 03.76 49.270 N 8.260 E 5 G 4 GERMANY. <STR>. ML 1.9 (STR).19 13 42 06.96 49.280 N 8.300 E 5 G 5 GERMANY. <STR>. ML 1.7 (STR).19 14 17 55.1* 48.376 N 84.374 E 33 N 4.4 0.7 13 EASTERN KAZAKHSTAN. Felt (III) at Kurshim and Samarskoe.19 14 22 50.46 38.240 N 21.720 E 5 10 GREECE. <ATH>. MD 3.1 (ATH).19 14 53 56.1* 0.225 N 98.795 E 76 ? 4.4 1.0 13 NORTHERN SUMATERA, INDONESIA19 15 10 06.76 62.288 N 149.888 W 56 36 CENTRAL ALASKA. <AEIC>. ML 3.2 (AEIC), 3.7 (PMR) .19 15 44 19.16 35.716 S 71.758 W 5 10 CENTRAL CHILE. <GUC>. MD 3.8 (GUC). Felt (II) at Talca.19 15 48 20.36 35.750 N 21.540 E 35 5 CENTRAL MEDITERRANEAN SEA. <ATH>. MD 3.6 (ATH).19 18 04 06.36 34.581 S 72.357 W 36 12 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.5 (GUC).19 18 40 00.3 15.896 N 92.929 W 95 D 4.7 1.1 83 MEXICO-GUATEMALA BORDER REGION. MD 4.7 (UNM) , 4.6 (CASC) .19 20 23 06.06 19.187 N 98.957 W 5 10 CENTRAL MEXICO. <UNM>. MD 3.1 (UNM).19 20 26 54.56 34.629 S 72.365 W 31 10 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.9 (GUC) .19 21 11 16.2% 40.779 N 32.346 E 10 G 0.5 8 TURKEY. MD 3.4 (ISK).19 21 27 39.0 4.872 S 151.833 E 136 4.9 0.7 25 NEW BRITAIN REGION, P.N.G.19 21 36 33.16 64.912 N 151.508 W 36 23 CENTRAL ALASKA. <AEIC>. ML 3.0 (AEIC), 2.9 (PMR).19 22 05 19.3* 24.228 N 122.789 E 59 * 3.7 0.6 10 TAIWAN REGION19 22 20 11.7 56.852 N 153.238 W 10 G 4.6 1.1 51 KODIAK ISLAND REGION. ML 4.6 (PMR), 4.3 (AEIC). Felt at Old

Harbor.19 23 28 29.8% 36.800 N 5.467 W 10 G 0.6 10 STRAIT OF GIBRALTAR. mbLg 2.1 (HDD).20 00 22 48.06 49.140 N 6.880 E 1 G 20 GERMANY. <FBB>. ML 2.7 (GRF), 2.5 (UCC), 2.4 (FBB) . Mining

induced event in the Lorraine region, France.20 00 24 17.86 33.067 S 70.224 W 103 12 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.6 (GUC).20 01 02 44.2? 6.97 S 155.98 E 33 N 4.6 0.8 14 SOLOMON ISLANDS20 01 13 44.26 36.830 N 5.510 W 0 G 14 STRAIT OF GIBRALTAR. <MDD>. mbLg 2.5 (MOD) .20 02 27 05.86 45.200 N 6.400 E 2 5 FRANCE. <LDG>. ML 1.7 (LDG).20 03 21 04.36 37.313 N 27.780 E 10 G 10 TURKEY. <ISK>. MD 3.7 (ATH), 3.2 (ISK).20 03 24 19.86 40.138 N 122.543 W 21 21 NORTHERN CALIFORNIA. <GM-P>. ML 3.4 (GM) , 3.6 (BRK).20 03 52 07.4* 8.772 S 114.766 E 121 * 4.0 0.6 7 BALI REGION, INDONESIA20 03 58 04.56 14.578 N 61.121 W 130 7 WINDWARD ISLANDS. <FDF>. MD 3.1 (FDF) .20 04 00 50.16 30.529 S 71.333 W 53 8 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.6 (GUC).20 04 48 33.26 36.290 N 3.530 W 31 6 STRAIT OF GIBRALTAR. <MDD>. mbLg 2.1 (MOD) .20 04 49 37.86 4.521 N 75.665 W 4 5 COLOMBIA. <RSNC>. ML 2.4 (RSNC) .20 05 21 07.7 29.753 S 71.605 W 63 * 4.2 1.3 33 NEAR COAST OF CENTRAL CHILE20 05 35 28.16 11.175 N 60.735 W 4 6 WINDWARD ISLANDS. <TRN>. MD 2.2 (TRN) .20 05 42 02.26 40.751 N 29.798 E 13 7 TURKEY. <ISK>. MD 3.0 (ISK).20 06 04 36.86 42.037 N 19.185 E 3 9 NORTHWESTERN BALKAN REGION. <PDG>. MD 1.9 (PDG).20 07 00 28.7 4.700 S 153.245 E 73 D 5.0 0.9 69 NEW IRELAND REGION, P.N.G. Mw 5.4 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 07:00:30.1; Lat 4.83 S; Lon 153.19 E; Dep 49.6; Half- duration 1.2 sec; Principal axes (scale 1C-* 17 Nm) : (T) Val=1.31, Plg=63, Azm=317; (N) Val=-0.16, ?lg=17, Azm=86; (P) Val=-1.16, Plg=20, Azm=182; Best double couple: Mo=1.2*10**17 Nm; NP1: Strike=299, Dip=30. Slip=127; NP2: Strike=78, Dip=67, Slip=71.

20 07 02 43.16 38.830 N 20.530 E 5 6 GREECE. <ATH>. MD 3.2 (ATH).20 07 11 14.16 63.454 N 151.306 W 11 34 CENTRAL ALASKA. <AEIC>. ML 3.0 (AEIC), 3.2 (PMR).20 07 18 07.66 18.180 N 67.040 W 18 8 MONA PASSAGE. <MPR>. MD 2.7 (MPR) .20 07 29 04.56 63.469 N 151.331 W 5 27 CENTRAL ALASKA. <AEIC>. ML 2.5 (AEIC).20 08 29 37.5? 5.44 S 153.01 E 57 ? 4.4 1.3 10 NEW IRELAND REGION, P.N.G.20 08 31 51.36 66.312 N 153.220 WO 22 NORTHERN ALASKA. <AEIC>. ML 3.9 (AEIC).20 08 32 22.9& 39.634 N 29.510 E 10 G 4 TURKEY. <ISK>. MD 2.7 (ISK).20 08 43 45.3 40.416 N 143.794 E 50 D 4.5 1.4 54 OFF EAST COAST OF HONSHU, JAPAN20 09 12 12.8& 39.161 N 29.416 E 9 8 TURKEY. <ISK>. MD 3.1 (ISK).20 09 14 00.8* 86.032 N 79.515 E 10 G 3.9 1.1 13 NORTH OF SEVERNAYA ZEMLYA20 09 40 30.9* 36.880 N 73.831 E 33 N 4.1 0.9 12 NORTHWESTERN KASHMIR20 09 55 55.2& 40.439 N 29.277 E 10 G 6 TURKEY. <ISK>. MD 2.6 (ISK).

KA.Y 1999

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CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.8 (GM* .FRANCE. <LDG>. ML 2.0 (LOG).NEAR COAST OF NICARAGUA. MD 4.2 (CASC).POLAND. ML 3.5 (VIE), 3.4 (GRF).KURIL ISLANDSSTRAIT OF GIBRALTAR. <MDD>. mbLg 1.8 (MOD).SUMBAWA REGION, INDONESIAJAWA, INDONESIANORTHERN CHILE. Felt (III) at Chanaral. Diego de Ainagro, ElSalado, El Salvador, Inca de Oro and Potrerillos; 'ID atTierra Amarilla. SOUTH OF FIJI ISLANDSSWITZERLAND. <LDG>. ML 2.4 (LOG), 2.2 (STR). SWITZERLAND. <LDG>. ML 4.2 (GRF), 4.0 (LOG), 3.7 (F3S), 3.7(FOR), 3.7 (VIE), 3.6 (STR), 3.5 (UCC).

SWITZERLAND. <LDG>. ML 2.5 (LOG), 2.4 (STR), 2.1 (F33) . KURIL ISLANDSOFF COAST OF CENTRAL CHILE. <GUC> TURKEY. <ISK>. MD 2.8 (ISK). TURKEY. <ISK>. MD 2.7 (ISK). ALASKA PENINSULA. <AEIC>. HINDU RUSH REGION, AFGHANISTAN DODECANESE ISLANDS. <ISK>. MD 3.1 SWITZERLAND. <LDG>. ML 2.5 (LOG), TURKEY. <ISK>. MD 2.8 (ISK).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.1 (GUC). SWITZERLAND. <LDG>. ML 3.1 (LOG), 3.0 (STR), 2.7 (F33) SOUTHERN ALASKA. <AEIC>.SAN JUAN PROVINCE, ARGENTINA. MD 3.5 (GUC). NORTH OF SEVERNAYA ZEMLYA FIJI ISLANDS REGION FRANCE. <STR>. ML 2.6 (STR). OFF E. COAST OF N. ISLAND, N.Z. SWITZERLAND. <LDG>. ML 2.3 (LDG), 2.1 (STR). BANDA SEA VANUATU ISLANDS CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.1 (GM> .

MD 3.9 (GUC).

(ISK). 2.3 (STR)

OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.5 (GUC). (STR), 2.9 (FB3), 2.7

.0 (TRN).<UNM>. MD 3.9 (UNM).

SWITZERLAND. <LDG> . ML 3.3 (LDG), 3.1 (VIE) .

KENAI PENINSULA, ALASKA. <AEIC>. ML 3 . 5 (AEIC) , 3.5 (PMR) Felt at Clam Gulch.

SOUTH OF MARIANA ISLANDSOFF COAST OF CENTRAL CHILESOUTHERN ALASKA. <AEIC>.ROMANIAPYRENEES. <STR>. ML 2.4 (STR), 2.3 (LDG).SWITZERLAND. <LDG>. ML 2.1 (LDG), 2.0 (STR).CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.8 (GM, .GREECE. MD 3.2 (ATH) .NEAR COAST OF CENTRAL CHILE. <GUC> .SOUTH OF MARIANA ISLANDSNEAR COAST OF GUERRERO, MEXICO. <UNM>. MD 3 . 6 (UNM) .SWITZERLAND. <LDG>. ML 2.3 (LDG), 2.3 (STR).KERMADEC ISLANDS REGIONCRETE. <ATH>. MD 3.2 (ATH).NEAR COAST OF VENEZUELA. MD 4.OFF COAST OF GUERRERO, MEXICO.SOUTHWEST INDIAN RIDGEFRANCE. <LDG>. ML 1.6 (LDG).SOUTHERN ALASKA. <AEIC>.TURKEY. <ATH>. MD 3 . 6 {ATH).ALBANIA. <PDG>. MD 2.0 (PDG) .GREECE. <ATH>. MD 3 . 5 (ATH).OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC) .NORTHERN SUMATERA, INDONESIANORTHWESTERN BALKAN REGION. <PDG> . MD 2.7 (PDG).SOUTH OF FIJI ISLANDSMONA PASSAGE. <MPR>. MD 2 . 5 (MPR) .NEAR COAST OF CENTRAL CHILE. <GUC> . MD 3.5 (GUC) .NEAR COAST OF CENTRAL CHILE. <GUC> .OFF COAST OF GUERRERO, MEXICO. <UNM>. MD 4.0 (UNM) .PANAMA-COLOMBIA BORDER REGION. ML 4.0 (RSNC) .SOUTH SANDWICH ISLANDS REGION. Mw 5.7 (HRV).Centroid, Moment Tensor (HRV) : Centroid origin time 03:12:28.0; Lat 61.14 S; Lon 24.35 W; Dep 15.0 Fixr Half- duration 1.7 sec; Principal axes (scale 10**17 Nm! : (T) Val=4.23, Plg=2, Azm=339; (N) Val=-1.53, Plg=19, Ara=69; (P) Val=-2.70, Plg=71, Azm=242; Best double couple:Mo=3.5*10**17 Nm; NP1 : Strike=50, Dip=46, Slip=Strike=266, Dip=50, Slip=-65.

NORTHWESTERN BALKAN REGION. <SKO>. MD 2.7 (PDG). GREECE. <ATH>. MD 3.0 (ATH). CARLSBERG RIDGE NORTHERN CHILEIRIAN JAYA REGION, INDONESIA IRIAN JAYA REGION, INDONESIA IRIAN JAYA REGION, INDONESIA POLAND. ML 3.0 (CLL) . DODECANESE ISLANDS. <ATH> . MD 3 . 3 DODECANESE ISLANDS. <ATH> . MD 3 . 6 FIJI ISLANDS REGION SOUTH ISLAND, NEW ZEALAND. <WEL>. ML 4.3 (WEL) . Pel.

NP2 :

<£TH)

MAY 1999 PAGE 24

21 08 22 13.2? 9.26 S 108.86 H 10 G 4.2 0.721 08 23 51.3& 34.575 S 72.388 W 2421 09 01 02.6 0.335 S 132.684 E 33 N 4.9 4.3 1.1

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strongly at Omarama. Also felt at Twizel. 10 CENTRAL EAST PACIFIC RISE13 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC). 49 IRIAN JAYA REGION, INDONESIA. Mw 5.3 (HRV) .

Centroid, Moment Tensor (HRV): Centroid origin time 09:01:03.7; Lat 0.44 S; Lon 132.78 E; Dep 24.3; Half- duration 1.0 sec; Principal axes (scale 10**17 Nm): (T) Val=l.ll, Plg=58, Azm=141; (N) Val=-0.30, Plg=19, Azm=266; (P) Val=-0.81, Plg=24, Azm=5; Best double couple: Mo=9.6*10**16 Nm; NP1: Strike=129, Dip=27, Slip=137; NP2: Strike=259, Dip=72, Slip=69.

TURKEY. <ISK>. MD 3.4 (ISK).TURKEY. <ISK>. MD 3.0 (ISK).IRIAN JAYA REGION, INDONESIAPUERTO RICO REGION. <MPR>. MD 3.4 (MPR).NORTHERN ALASKA. <AEIC>. ML 2.6 (AEIC).NEAR COAST OF GUERRERO, MEXICO. <UNM>. MD 4.0 (UNM).GERMANY. <STR>. ML 2.5 (LOG), 2.1 (STR), 2.0 (FBB).FRANCE. <LDG>. ML 2.0 (LOG).IRIAN JAYA REGION, INDONESIACHILE-ARGENTINA BORDER REGION. <GUC>.LOYALTY ISLANDS REGIONTURKEY. <ISK>. MD 2.8 (ISK).NEW BRITAIN REGION, P.N.G.HINDU K0SH REGION, AFGHANISTANGREECE. <ATH>. MD 3.1 (ATH).TALAUD ISLANDS, INDONESIACENTRAL ALASKA. <AEIC>. ML 2.7 (AEIC), 2.9 (PMR).SOUTH SANDWICH ISLANDS REGIONCENTRAL CALIFORNIA. <PAS-P>. ML 2.9 (PAS).TURKEY. <ISK>. MD 3.6 (ATH), 3.3 (ISK).NEW BRITAIN REGION, P.N.G.SEA OF JAPANNORTH OF ASCENSION ISLANDRYUKYU ISLANDS. Felt (I JMA) in the epicentral area.WEST fBTT.g RISECHILE-ARGENTINA BORDER REGION. <GUC>.EL SALVADORCHILE-ARGENTINA BORDER REGION. <GUC>.SOUTH OF HONSHU, JAPANTALAUD ISLANDS, INDONESIASPAIN. <MDD>. nbLg 2.1 (MOD).TALAUD ISLANDS, INDONESIA. Mw 5.4 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 18:20:26.4; Lat 4.09 N; Lon 126.61 E; Dep 24.6; Half- duration 1.1 sec; Principal axes (scale 10**17 Nm): (T) Val=1.50, Plg»51, Azm=322; (N) Val=-0.50, Plg=17, Azm=210; (P) Val=-1.00, Plg=34. Azm=108; Best double couple: Mo=1.2*10**17 Nm; NP1: Strike=149, Dip*19, Slip=28; NP2 .- Strike=33, Dip=81, Slip=107.

TALAUD ISLANDS, INDONESIAALASKA PENINSULA. <AEIC>. ML 3.9 (AEIC), 4.1 (PMR).SOUTHERN IRANTURKEY. <ISK>. MD 2.9 (ISK).VANUATU ISLANDSNEAR COAST OF OAXACA, MEXICO. <UNM>. MD 3.9 (UNM).TONGA ISLANDSKENAI PENINSULA, ALASKA. <AEIC>. ML 2.8 (AEIC).CHILE-BOLIVIA BORDER REGIONSWITZERLAND. <LDG>. ML 2.0 (LOG), 2.0 (STR).NEAR S. COAST OF HONSHU, JAPAN. Felt (III JMA) in eastern Saitaaa; (II JMA) in western Chiba, western Kanagawa, eastern Shizuoka, western Tokyo and eastern Yamanashi Prefectures.

16 POLAND. ML 3.6 (GRF), 3.4 (VIE).79 CHILE-ARGENTINA BORDER REGION. Mw 5.3 (HRV). MD 4.5 (GUC).

Felt (III) at Chilian, Concepcion, Los Angeles, San Carlos and Talca, Chile.

Centroid, Moment Tensor (HRV): Centroid origin time 01:32:15.5; Lat 36.56 S; Lon 70.57 W; Dep 163.5; Half- duration 1.0 sec; Principal axes (scale 10**17 Nm) : (T) Val=0.95, Plg=34, Azm=93; (N) Val=0.14, Plg*5, Azm=0; (P) Val=-1.08, Plg=55, Azm=263; Best double couple:

. Mo=1.0*10**17 Nm; NP1: Strike=204, Dip=12. Slip=-65; NP2:Strike=359, Dip=80, Slip=-95.

8 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.3 (GUC). 19 SOUTH OF KERMADEC ISLANDS 24 TURKEY. MD 4.1 (ISK). Felt at Cankiri.4 TURKEY. <ISK>. MD 2.8 (ISK).

30 REVILLA GIGEDO ISLANDS REGION11 LOYALTY ISLANDS REGION 8 NORTHWESTERN BALKAN REGION. ML 2.2 (VIE), 1.6 (LJU).

12 NORTHWEST OF RYUKYU ISLANDS16 SOUTHEAST OF RYUKYU ISLANDS 6 WINDWARD ISLANDS. <TRN>. MD 3.1 (TRN).

13 NEAR CCAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC) .65 MINDANAO, PHILIPPINE ISLANDS. Mw 5.4 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 06:04:57.2; Lat 9.44 N; Lon 126.65 E; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**17 Nm) : (T) Val=1.20, Plg=41, Azm=171; (N) Val=0.15, Plg=8, Azm=74; (P) Val=-1.35, Plg=48, Azm=335; Best double couple: Mo=1.2*10**17 Nm; NP1: Strike=320, Dip=8, Slip=-24; N?2:

MAY 1999

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Strike=73, Dip=87, Slip=-98.SOUTH SANDWICH ISLANDS REGIONFIJI ISLANDS REGIONCENTRAL MEXICO. <UNM>. MD 3.1 (UNM).LEEWARD ISLANDS. <FDF>. MD 2.7 (FDF).GERMANY. <LDG>. ML 2.1 (LDG).SAN JUAN PROVINCE, ARGENTINA. MD 3.2 (GUC).CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.8 (GM) .NICOBAR ISLANDS, INDIATURKEY. <ISK>. MD 2.8 (ISK).SOUTHERN GREECE. <ATH>. MD 3.1 (ATH).SANTA CRUZ ISLANDSCENTRAL ALASKA. ML 3.2 (AEIC).CENTRAL ALASKA. Felt strongly at Willow. Also felt at Cbugiak, Palmer, Skwentna, Talkeetna and Wasilla.

VANUATU ISLANDS. Mw 6.1 (GS), 6.0 (HRV).Moment Tensor (GS): Dep 9; Principal axes (scale 10**18 Nm) : (T) Val=1.66, Plg=3, Azm=70; (N) Val=0.01, Plg=58, Azm=335; (P) Val=-1.68. Plg=32, Azm=162; Best double couple: Mo=1.7*10**18 Mm; NP1: Strike=201, Dip=65, Slip=-22; NP2: Strike=300, Dip«70, Slip=-154.

Centroid, Moment Tensor (HRV): Centroid origin time 10:08:56.8; Lat 20.60 S; Lon 169.97 E; Dep 15.0 Fix; Half- duration 2.4 sec; Principal axes (scale 10**18 Nm) : (T) Val=1.29, Plg=l, Azm=249; (N) Val=-0.04, Plg=50, Azm=341; (P) Val=-1.25. Plg=40, Azm=159; Best double couple: Mo=1.3*10**18 Nm; NP1: Strike=302, Dip=62, Slip=-150; NP2 : Strike=196, Dip=64, Slip=-31.

EASTERN HONSHU, JAPANVANUATU ISLANDSTURKEY. <ISK>. MD 3.1 (ISK).NEAR SOUTH COAST OF FRANCE. <GEN>. ML 2.3 (GEN), 2.1 (LDG).NEW IRELAND REGION, P.N.G.OFF EAST COAST OF HONSHU, JAPANNEW BRITAIN REGION, P.N.G.NEW BRITAIN REGION, NEW BRITAIN REGION, NEW BRITAIN REGION, MONA PASSAGE. <MPR>. TURKEY. <ISK>. MD 2. NEW BRITAIN REGION,

P.N.G. P.N.G. P.N.G.MD 3.7 (MPR).

.8 (ISK). P.N.G.

CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.8 (GM) . TURKEY. <ISK>. MD 2.9 (ISK). MARIANA ISLANDSNEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC). NORTHWESTERN CAUCASUSALASKA PENINSULA. <AEIC>. ML 2.6 (AEIC). SEA OF OKHOTSK

ML 2.7 (AEIC). ML 2.3 (GEN), 2 ML 2.1 (GEN). MD 4.2 (UNM). ML 1

CENTRAL ALASKA. NORTHERN ITALY. NORTHERN ITALY. OAXACA, MEXICO. NORTHERN ITALY.

.1 (PMR)(LDG), 2.1 (STR)

211313131013155

10

<AEIC>. <GEN>. <GEN>. <UNM>.<GEN>. ML 1.7 (GEN).

NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC) . OFF COAST OF CENTRAL CHILE. <GUC>. TURKEY. <ISK>. MD 2.6 (ISK). NEAR N COAST OF NEW GUINEA, PNG. NORTHERN IRANSOUTHERN ALASKA. <AEIC>. ML 2.7 (AEIC), 3.2 (PMR). PHILIPPINE ISLANDS REGION EAST CENTRAL PACIFIC OCEAN NORTH OF SEVERNAYA ZEMLYA NORTHERN ITALY. <GEN>. ML 2.4 (GEN). KURIL ISLANDSOFF COAST OF CENTRAL CHILE. <GUC>. MD 4.1 (GUC). NORTHERN SUMATERA, INDONESIA CENTRAL ITALY. ML 2.8 (LDG).NORTH ISLAND, NEW ZEALAND. <WEL>. ML 4.0 (WED. FIJI ISLANDS REGION GREECE. <ATH>. MD 3.0 (ATH).NEW BRITAIN REGION, P.N.G. Mw5.7 (GS) , 5.7 (HRV). Moment Tensor (GS): Dep 7; Principal axes (scale 10**17 Nm) : (T) Val=4.45, Plg=51, Azm=8; (N) Val=0.08, Plg=l, Azm=277; (P) Val=-4.53, Plg=39, Azm=187; Best double couple: Mo=4.5*10**17 Nm; NP1: Strike=271, Dip=6, Slip=84; NP2: Strike=97, Dip=84, Slip=91.

Centroid, Moment Tensor (HRV): Centroid origin time 22:56:29.5; Lat 5.58 S Fix; Lon 152.91 E Fix; Dep 15.0 Bdy; Half-duration 1.8 sec; Principal axes (scale 10**17 :£a) : (T) Val=4.28, ?lg=58, Azm=348; (N) Val=-0.01, Plg=l, Azm=80; (P) Vai=-4.28, Plg=32, Azm=170; Best double c=uple: Mo=4.3*10**17 Kn; NP1: Strike=264, Dip=13, Slip=95; K?2: Strike=80, Dip=77, Slip=89.

MINDORO, PHILIPPINE ISLANDSNEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC). KYUSHU, JAPANCHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.7 (GUC). MID-INDIAN RIDGECENTRAL ALASKA. <AEIC>. ML 2.8 (AEIC). NEW BRITAIN REGION, P.N.G. TURKEY. <ISK>. MI *.7 (ISK). TURKEY. MD 3.7 (ATH), 3.6 (ISK). FRANCE. <LDG>, ML 1.6 (LDG).

MAY 1999 PAGE 26

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31. 8t38.5*16. 6t29. 2t12. 4t46.324. 2t31.112. 6t58. 2t26. 5t48. 2t35.905.246.4*59.lt29.755. Ot46. 2t22. "7 &08. 2t02. 6&49.249.217. 4t24. 2&22. 9t14. 6t20.6*02.6?04. OS.

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40.5295.792

20.028.371

39.11139.22516.545

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24 05 22 34.4& 60.169 N 139.324 W 0

24 05 24 14.9& 42.110 N 8.130 W 1424 06 04 39.7& 38.870 N 21.170 E 524 06 08 12.8& 38.350 N 22.110 E 524 07 02 25.6& 39.310 N 27.538 E 924 07 39 05.5& 38.810 N 27.630 E 524 07 55 20.7t 61.463 N 149.238 W 36

3.7 49

48748

19

MD 3.3 (GUC). 3.0 (BUT). MD 3.6 (GUC).

SWITZERLAND. <LDG>. ML 2.1 (LOG), 2.1 (STR).FRANCE. <LDG>. ML 2.0 (LDG), 1.8 (STR).AFGHANISTAN-TAJIKISTAN BORD REG.SPAIN. <MDD>. mbLg 1.5 (MOD).GREECE-ALBANIA BORDER REGION. <ATH>. MD 3.5 (ATM).CARLSBERG RIDGECHILE-ARGENTINA BORDER REGION. <GUC>.WESTERN IDAHO. <BSE-P>. ML 2.7 (BSE),CHILE-ARGENTINA BORDER REGION. <GUC>.LEEWARD ISLANDS. <FDF>. MG 2.8 (FDF).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.5 (GUC).NEW BRITAIN REGION, P.N.G.NEW BRITAIN REGION, P.N.G.NEW BRITAIN REGION, P.N.G.CHILE-ARGENTINA BORDER REGION. <GUC>.YELLOWSTONE REGION, WYOMING. <SLC-P>. ML 2.9 (SLC), 3.2(BUT).

TURKEY. <ISK>. MD 3.3 (ISK). MINDANAO, PHILIPPINE ISLANDS FIJI ISLANDS REGION SUMBAWA REGION, INDONESIA TURKEY. <ISK>. MD 2.8 (ISK). TURKEY. <ISK>. MD 3.5 (ISK). LEEWARD ISLANDS. <TRN>. MD 3.8 (TRN). Felt (II) onGuadeloupe.

OAXACA, MEXICO. <UNM>. MD 3.9 (UNM). KURIL ISLANDS. Felt (III) at Yuzhno-Kurilsk, Kunashir. Alsofelt (II JMA) in eastern Hokkaido.

MENDOZA PROVINCE, ARGENTINA. MD 3.3 (GUC). TURKEY. <ISK>. MD 2.7 (ISK). NEW BRITAIN REGION, P.N.G. TURKEY. <ISK>. MD 3.1 (ISK). FRANCE. <LDG>. ML 2.3 (STR), 2.2 (LDG). FOX ISLANDS, ALEUTIAN ISLANDS. <AEIC>. ML 3.1 (AEIC). ECUADORSWITZERLAND. <LDG>. ML 1.9 (LDG). PUERTO RICO REGION. <MPR>. MD 2.8 (MPR). NORTHERN ITALY. <GEN>. ML 1.8 (GEN). TURKEY. <ISK>. MD 2.8 (ISK).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 4.0 (GUC). SAN JUAN PROVINCE, ARGENTINA. <GUC>. MD 3.1 (GUC). FIJI ISLANDS AUSTRIA. ML 3.5 (GRF), 3.3 (VIE), 3.1 (LDG), 2.8 (LJU). Felt(IV) at Dreznica, Kobarid and Ladra, Slovenia.

GREECE-ALBANIA BORDER REGION. <ATH>. MD 3.1 (ATM). FIJI ISLANDS REGIONCHILE-ARGENTINA BORDER REGION. <GOC>. MD 2.3 (GUC). LEEWARD ISLANDS. <TRN>. MD 3.6 (TRN). 3.5 (FDF). MONA PASSAGE. <MPR>. MD 3.0 (MPR). ANDREANOF ISLANDS, ALEUTIAN IS. ML 5.0 (PMR). NEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.9 (GUC). OFF COAST OF NORTHERN CALIFORNIA. ML 3.6 (BRK), 3.6 (GS). OAXACA, MEXICO. <UNM>. MD 3.7 (UNM). TURKEY. <ISK>. MD 3.7 (ATH), 3.5 (ISK). TURKEY. <ISK>. MD 2.9 (ISK). TURKEY. <ISK>. MD 2.8 (ISK). CENTRAL CHILEGERMANY. ML 2.8 (VIE), 2.7 (LDG), 2.6 (FBB), 2.6 (STR). CENTRAL MID-ATLANTIC RIDGE CHILE-ARGENTINA BORDER REGION. VANUATU ISLANDS TURKEY. <ISK>. MD 2.8 (ISK). TURKEY. <ISK>. MD 3.1 (ISK). FRANCE. <LDG>. ML 2.0 (LDG). TURKEY. <ISK>. MD 2.8 (ISK). NEAR COAST OF CENTRAL CHILE. NORTH OF SEVERNAYA ZEMLYA FIJI ISLANDS REGION NEAR COAST OF CENTRAL CHILE. ALBANIA. <ATH>. MD 3.2 (ATH). CENTRAL CHILE. <GUC>. MD 2.7 (GUC). FRANCE. <LDG>. ML 1.5 (LDG). MENDOZA PROVINCE, ARGENTINA. MD 3.3 (GUC). SANTA CRUZ ISLANDS OFF COAST OF CALIFORNIA. <GM-P>. ML 3.4 (GM), 3.4 (BRK). 3.2(PAS).

MONA PASSAGE. <MPR>. MD 2.6 (MPR). SOUTH OF JAWA, INDONESIA. Mw 5.0 (HRV). Centroid, Moment Tensor (HRV): Centroid origin time05:02:52.7; Lat 9.95 S; Lon 109.02 E; Dep 67.1; Half-duration 1.0 sec; Principal axes (scale 10**16 Nm): (T)Val=3.28, Plg=21, Azm=41; (N) Val=0.81, Plg=12, Azm=306;(P) Val=-4.08, Plg=65, Azm=188; Best double couple:Mo=3.7*10**16 Nm; NP1: Strike=153, Dip=26. Slip=-61; NP2:Strike=301, Dip=67, Slip=-103. SOUTHEASTERN ALASKA. <AEIC>. ML 4.2 (AEIC), 4.4 (PGC), 4.3(PMR). Felt at Yakutat.

SPAIN. <MDD>. mbLg 2.5 (MOD). GREECE. <ATH>. MD 3.2 (ATH). GREECE. <ATH>. MD 3.1 (ATH). TURKEY. <ISK>. MD 2.8 (ISK). TURKEY. <ATH>. MD 3.5 (ATH)


<GUC>.

<GUO. MD 3.7 (GUC).

SOUTHERN ALASKA. <AEIC>. ML3.2 (ISK).

2.5 (AEIC).

MAY 1939

24 09 08 10.3& 60.181 N 139.298 WO 29 SOUTHEASTERN ALASKA. <AEIO. ML 4.1 (PMR) .24 09 09 25.3 47.135 N 9.260 E 10 G 0.8 11 GERMANY. ML 2.6 (VIE), 2.4 (LDG), 2.3 (STR).24 09 23 53.2& 42.834 N 17.835 E 7 10 ADRIATIC SEA. <PDG>. MD 2.3 (PDG).24 09 38 53.1 13.675 N 120.645 E 116 ? 4.6 0.8 29 MINDORO, PHILIPPINE ISLANDS24 09 45 19.6& 10.997 N 62.191 W 66 5 NEAR COAST OF VENEZUELA. <TRN>. MD 2.8 (TRN) .24 11 16 20.8& 40.160 N 21.670 E 5 10 GREECE. <ATH>. MD 3.4 (ATH).24 11 32 52.9& 44.300 N 7.500 E 2 5 NORTHERN ITALY. <LDG>. ML 2.0 (LOG).24 11 41 35.5£ 63.086 N 149.351 W 80 7 CENTRAL ALASKA. <AEIC>.24 12 02 41.4* 44.134 N 128.266 W 10 G 3.9 0.8 11 OFF COAST OF OREGON24 12 13 46.3& 43.000 N 0.100 E 2 7 FRANCE. <LDG>. ML 2.3 (STR), 1.9 (LDG).24 12 50 15.0& 32.351 S 71.655 W 14 12 NEAR COAST OF CENTRA!; CHILE. <GUC>. MD 3.3 (GUC) .24 13 31 51.3& 36.860 N 2.270 W 0 G 13 STRAIT OF GIBRALTAR. <MDD>. mbLg 2.5 (MOD).24 13 36 44.2? 2.00 N 126.76 E 132 ? 4.2 1.2 11 NORTHERN MOLUCCA SEA24 13 39 52.0 47.227 N 9.343 E 10 G 1.4 29 GERMANY. ML 2.7 (STR), 2.7 (VIE), 2.7 (LDG), 2.6 (FBB) .24 14 00 19.5& 36.680 N 2.600 W 11 11 STRAIT OF GIBRALTAR. <MDD>. mbLg 2.0 (MOD) .24 14 00 56.7& 39.075 N 27.894 E 10 G 4 TURKEY. <ISK>. MD 2.8 (ISK).24 14 38 11.4 8.183 S 68.053 E 10 G 5.2 5.1 1.0 159 CHAGOS ARCHIPELAGO REGION. Mw 5.3 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 14:38:15.8; Lat 8.30 S; Lon 68.08 E; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**17 Nm) : (T) Val=1.09, Plg=77, Azm=172; (N) Val=-0.17, Plg=10, Azm=313; (P) Val=-0.93, Plg=8, Azm=45; Best double couple: Mo=1.0*10**17 Nm; NP1: Strike=147, Dip=38, Slip=107; NP2: Strike=306, Dip=54, Slip=77.

24 14 50 40.6£ 39.235 N 27.033 E 10 4 TURKEY. <ISK>. MD 2.8 (ISK). 24 14 54 59.0* 19.037 S 169.558 E 281 4.2 1.1 17 VANUATU ISLANDS 24 14 59 11.5£ 39.220 N 27.048 E 10 G 4 TURKEY. <ISK>. MD 2.7 (ISK).24 15 00 24.6& 16.005 N 60.848 W 28 18 LEEWARD ISLANDS. <FDF>. MD 3.1 (TRN), 2.9 (PDF). 24 15 02 53.7 36.196 N 70.932 E 134 D 4.2 0.9 27 HINDU KUSH REGION, AFGHANISTAN 24 15 33 20.9 0.337 S 132.633 E 61 * 5.1 4.4 1.0 66 IRIAN JAYA REGION, INDONESIA. Mw 5.4 (HRV).

Centroid, Moment Tensor (ERV): Centroid origin time 15:33:19.4; Lat 0.41 S; Lon 132.67 E; Dep 24.9; Half- duration 1.2 sec; Principal axes (scale 10**17 Nm): (T) Val=1.34, Plg=70, Azm=195; (N) Val=0.06, Plg=2, Azm=289; (P) Val=-1.40, Plg=20, Azm-20; Best double couple: Mo=1.4*10**17 Nm; NP1: Strike=113, Dip=25, Slip=94; NP2: Strike=289, Dip=65, Slip=88.

24 15 38 37.2* 5.022 S 151.826 E 89 * 1.2 17 NEW BRITAIN REGION, P.N.G. 24 15 40 16.8& 44.357 N 7.181 E 12 4 NORTHERN ITALY. <GEN>. ML 1.6 (GEN). 24 15 45 55.1& 34.446 S 70.409 W 8 12 CHILE-ARGENTINA BORDER REGION. <GUO. MD 3.3 (GUC). 24 15 46 31.3 46.982 S 165.548 E 33-N 4.1 1.1 23 OFF W. COAST OF S. ISLAND, N.Z. 24 15 48 51.7& 38.400 N 21.980 E 18 6 GREECE. <ATH>. MD 3.1 (ATH). 24 15 55 45.7* 7.220 S 129.526 E 123 ? 4.5 1.4 26 BANDA SEA 24 16 08 53.7 0.352 S 132.686 E 62 * 4.9 0.9 38 IRIAN JAYA REGION, INDONESIA. Mw 5.3 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 16:08:57.4; Lat 0.10 N; Lon 131.94 E; Dep 18.4; Half- duration 1.0 sec; Principal axes (scale 10**17 Nm) : (T) Val=1.35, Plg=58, Azm=275; (N) Val=-0.42, Plg=22, Azm=144; (P) Val=-0.93, Plg=22, Azm=45; Best double couple: Mo=l.l*10**17 Nm; NP1: Strike=100, Dip=30, Sli?=41; NP2: Strike=333. Dip=71, Slip=I14.

24 18 23 53.8 9.877 S 109.050 E 33 N 4.5 1.2 35 SOUTH OF JAWA, INDONESIA 24 18 45 44.5 2.442 S 140.901 E 33 N 4.9 1.0 42 NEAR NORTH COAST OF IRIAN JAYA24 18 48 10.9& 42.377 N 18.576 E 7 9 NORTHWESTERN BALKAN REGION. <PDG>. MD 1.6 (PDG). 24 18 54 16.7 22.684 N 41.258 W 10 G 4.3 0.7 32 NORTH ATLANTIC OCEAN24 19 18 29.1& 18.560 N 66.740 W 14 4 PUERTO RICO REGION. <MPR>. MD 2.3 (MPR). 24 19 20 55.1& 34.567 S 72.428 W 13 12 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC). 24 19 38 24.9* 12.122 N 87.790 W 33 N 4.6 1.1 25 NEAR COAST OF NICARAGUA 24 19 40 40.2? 21.60 N 144.16 E 212 ? 3.6 0.9 8 MARIANA ISLANDS REGION 24 20 08 47.6& 35.596 S 71.425 W 118 12 CENTRAL CHILE. <GUO. MD 3.6 (GUC). 24 20 38 05.9* 39.171 N 142.519 E 33 N 1.3 7 NEAR EAST COAST OF HONSHU, JAPAN. Felt (I JMA) in

southeastern Iwate and northeastern Miyagi Prefectures.24 20 47 20.4& 39.257 N 27.763 E 13 5 TURKEY. <ISK>. MD 3.1 (ISK).24 20 51 15.1& 44.537 N 7.291 E 6 18 NORTHERN ITALY. <GEN>. ML 2.1 (GEN). 1.6 (LDG). 24 21 01 10.8% 6.344 N 73.433 W 33 N 0.5 6 NORTHERN COLOMBIA. ML 3.6 (RSNC). 24 21 02 23.1& 37.036 N 31.024 E 10 G 5 TURKEY. <ISK>. MD 3 .2 (ISK.). 24 21 05 27.3 41.232 N 20.664 E 5 G 1.0 11 ALBANIA. MD 2.5 (PDG).24 21 11 17.5& 15.198 N 60.773 W 103 15 LEEWARD ISLANDS. <TRN>. MD 3.0 (TRN), 2.7 (FDF). 24 21 47 49.8& 34.201 S 70.389 W 115 13 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.9 (GUC). 24 21 55 41.5? 31.04 S 70.25 W 100 G 0.7 12 CHILE-ARGENTINA BORDER REGION. MD 3.4 (GUC). 24 22 09 08.8& 46.900 N 7.200 E 2 4 SWITZERLAND. <LDG>. ML 1.6 (LDG). 24 22 12 19.4? 27.61 N 142.53 E 33 N 4.1 1.2 10 BONIN ISLANDS REGION24 23 07 46.6 46.052 N 14.775 E 10 G 0.3 6 NORTHWESTERN BALKAN REGION. ML 1.9 (VIE), 1.2 (LJU) . 24 23 24 39.6fc 35.527 S 71.347 W 100 12 CENTRAL CHILE. <GUC>. MD 2.9 (GUC).24 23 51 46.6? 52.21 N 174.20 W 33 N 3.9 0.9 5 ANDREANOF ISLANDS, ALEUTIAN IS.25 00 29 51.0? 6.30 S 128.19 E 383 ? 0.9 8 BANDA SEA25 00 55 50.1£ 42.400 N 1.700 E 2 5 PYRENEES. <LDG>. ML 1.9 (LDG).25 02 15 58.5 0.799 S 80.348 W 33 N 4.6 1.3 45 NEAR COAST OF ECUADOR25 02 18 11.4 4.286 S 80.645 W 33 N 4.7 4.1 0.9 63 PERU-ECUADOR BORDER REGION. Felt (III) at Piura and Tmch-es,

Peru.25 02 28 29.2S 37.193 N 29.049 E 7 6 TURKEY. <ISK>. MD 3.0 (ISK).25 02 32 37.9& 30.928 S 71.447 W 64 14 NEAR COAST OF CENTRAL CKI-^I. <GUC>. MD 3.8 (GUC}.25 02 48 38.7& 35.381 S 70.956 W 136 11 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.3 (C-VC) .25 02 51 09.8& 14.985 N 60.612 W 51 4 WINDWARD ISLANDS. <FDF>. XD 1.7 (FZJF).25 02 52 42.2& 39.369 N 28.209 E 10 G 8 TURKEY. <ISK>. MD 3.5 (ATH), 3.2 (ISK).25 02 58 10.1& 34.556 S 72.347 W 7 10 NEAR COAST OF CENTRAL CHILE. <GUC> .25 03 il 48.9* 58.008 N 31.848 W 10 G 4.3 1.5 19 NORTH ATLANTIC OCEAN25 03 21 45. 7& 35-510 N 27.330 E 24 5 DODECANESE ISLANDS. <ATH>. MD 3.6 (ATH).25 03 38 55-8 12.783 N 124.874 E 33 N 5.3 4.6 0.9 138 SAMAR, PHILIPPINE ISLANDS. Mw 5.1 (HRV).

Centroid, Moment Tensor (KRV) : Cer.-roid origin time 03:38:58.2; Lat 12.81 N; ^on 125.17 E; Dep 43.2; Half- duration 1.0 sec; Principal axes (scale I0**lf Nm) : \7 Val=4.10, ?lg=12, Azm=22 ; (N) Va1-0.43, Plg=2, Azm=31~;

MAY 1999 PAGE 28

(P) Val=-4.53, Plg=78. Azm=56; Best double couple: Mo=4.3*10**16 Nm; NP1: Strike=313, Dip=33, Slip=-94; NP2: Strike=138, Dip=57, Slip=-88.

03 56 59.1? 51.21 N 179.08 E 33N3.6 0.9 6 RAT ISLANDS, ALEUTIAN ISLANDS04 18 07.2 28.168 N 140.128 E 426 * 4.2 0.4 19 BONIN ISLANDS REGION04 40 23.9& 46.000 N 2.900 E 3 6 FRANCE. <LDG>. ML 1.4 (LDG) .04 41 39.2t 38.601 N 27.751 E 10 G 5 TURKEY. <ISK>. MD 3.1 (ISK).05 16 54.4? 51.26 N 178.42 E 33 N 3.9 1.1 10 RAT ISLANDS, ALEUTIAN ISLANDS05 26 41.3? 51.15 N 178.50 E 33 N 0.7 7 RAT ISLANDS, ALEUTIAN ISLANDS06 02 47.6* 51.127 N 178.332 E 33 N 4.1 0.9 17 RAT ISLANDS, ALEUTIAN ISLANDS 06 13 08.9t 38.850 N 21.490 E 5 3.8 41 GREECE. <ATH>. MD 3.7 (ATH) .06 50 22. Ot 53.843 N 163.781 W 18 7 UNIMAK ISLAND REGION. <AEIC>. ML 2.5 (AEIC) .07 01 11.4 55.795 N 110.172 E 10 G 4.1 1.2 17 LAKE BAYKAL REGION, RUSSIA. Felt (III) at Verkhnyaya Zaimka. 07 24 25.3& 37.470 N 118.821 W 7 14 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.8 (GM) .07 34 40.7 19.078 S 169.438 E 243 D 5.6 1.2 251 VANUATU ISLANDS. Mw 5.6 (GS), 5.5 (HRV).

Moment Tensor (GS): Dep 252; Principal axes (scale 10**17 Nm) : (T) Val=2.58, Plg=46, Azm=48; (N) Val=-0.05, Plg=33, Azm=180; (P) Val=-2.54, Plg=26, Azm=288; Best double couple: Mo=2.6*10**17 Nm; NPl: Strike=66, Dip=35, Slip=159; NP2: Strike=173, Dip=78, Slip=56.

Centroid, Moment Tensor (HRV): Centroid origin time 07:34:44.4; Lat 19.26 S; Lon 169.37 E; Dep 260.9; Half- duration 1.5 sec; Principal axes (scale 10**17 Nm) : (T) Val=2.03, Plg=47, Azm=50; (N) Val=0.49. Plg=31, Azm=182; (P) Val=-2.52, Plg=26, Azm=289; Best double couple: Mos2.3*10**17 Nm; NPl: Strike=65, Dip=34, Slip=158; NP2: Strike=174, Dip=78, Slip=58.

08 00 21.Ot 45.370 N 16.190 E 6 6 NORTHWESTERN BALKAN REGION. <ZAG>. ML 1.6 (LJU) . 08 09 19.0* 23.442 N 94.815 E 135 ? 4.1 1.1 15 MYANMAR-INDIA BORDER REGION08 47 38.5 13.206 N 89.780 W 33 N 4.5 4.1 1.3 54 EL SALVADOR. MD 4.6 (UNM) .09 00 17.6& 39.495 N 29.659 E 10 G 5 TURKEY. <ISK>. MD 2.6 (ISK).09 11 33.5& 33.579 S 71.124 W 73 13 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.5 (GUC) . Felt (II)

at Curacavi and Santiago.09 20 11.6* 51.480 N 16.040 E 5 G 0.6 11 POLAND. ML 3.7 (VIE). 09 35 53.2 45.519 N 26.453 E 134 0.8 34 ROMANIA 09 36 49.1& 37.470 N 118.821 W 7 15 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.0 (GM) . ML 3.1

(BRK).09 46 43.8* 40.469 N 50.242 E 33 N 3.7 0.9 15 CASPIAN SEA10 40 43.9? 14.35 S 167.34 E 186 ? 3.7 0.9 33 VANUATU ISLANDS10 41 45.5* 0.406 S 132.603 E 33 N 4.7 1.5 14 IRIAN JAYA REGION, INDONESIA10 50 24.9& 39.115 N 27.421 E 10 G 4 TURKEY. <ISK>. MD 2.8 (ISK).10 52 09.2 30.873 S 92.966 W 10 G 4.7 0.9 40 SOUTHEAST CENTRAL PACIFIC OCEAN11 17 28.8 28.456 N 57.650 E 33 N 4.7 3.8 1.3 50 SOUTHERN IRAN11 27 11.6& 62.267 N 141.446 WO 41 CENTRAL ALASKA. <AEIC>. ML 3.1 (AEIC), 3.6 (PMR) .12 17 38.0 62.002 N 151.320 W 100 G 0.5 8 CENTRAL ALASKA12 47 28.5& 32.702 S 71.711 W 32 8 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.4 (GUC).13 13 53.lt 39.020 N 21.640 E 5 11 GREECE. <ATH>. MD 3.3 (ATH). 13 19 40.1 64.115 N 21.310 W 10 G 4.2 3.5 1.1 30 ICELAND13 21 48.7 55.785 N 110.012 E 10 G 4.8 4.5 0.9 80 LAKE BAYKAL REGION, RUSSIA. Felt (V) at Verkhnyaya Zaimka;

(IV) at Kichera and Severobaykalsk; (III) at Bodaybo and Nizhneangarsk.

25 13 39 26.2& 39.588 N 29.145 E 13 6 TURKEY. <ISK>. MD 2.8 (ISK). 25 13 47 42.Ot 63.127 N 150.555 W 106 2.7 34 CENTRAL ALASKA. <AEIC>. 25 14 19 05.9 50.254 N 155.386 E 144 * 4.7 0.8 121 KURIL ISLANDS 25 15 02 55.36 39.174 N 27.659 E 5 4 TURKEY. <ISK>. MD 2.8 (ISK).25 15 05 39.9t 45.800 N 7.100 E 12 43 NORTHERN ITALY. <LDG>. ML 2.8 (LDG), 2.7 (GEN), 2.7 (STR) . 25 16 00 25.6 3.689 N 90.144 E 33 N 5.1 5.1 0.8 144 OFF W COAST OF NORTHERN SUMATERA. Mw 5.6 (GS) , 5.5 (HRV).

Moment Tensor (GS): Dep 21; Principal axes (scale 10**17 Nm) : (T) Val=2.85, Plg=5, Azm=68; (N) Val=0.16, Plg=85, Azm-244; (P) Val=-3.01, Plg=0, Azm=338; Best double couple: Mo»2.9*10**17 Nm; NPl: Strike=113, Dip=86, Slip=176; NP2: Strike=203, Dip=86, Slip=4.

Centroid, Moment Tensor (HRV) -. Centroid origin time 16:00:26,9; Lat 3.64 N; Lon 90.13 E; Dep 22.2 Fix; Half- duration 1.4 sec; Principal axes (scale 10**17 Nm) : (T) Val=2.35. Plg=4, Azm=72; (N) Val=-0.29, Plg=82, Azm=195; (P) Val=-2.05, Plg=6, Azm=341; Best double couple: Mo»2.2*10**17 Nm; NPl: Strike=117, Dip=82, Slip=-178; NP2: Strike=26, Dip=88, Slip=-8.

25- 16 42 05.3 27.931 S 66.934 W 169 D 5.3 1.0 203 CATAMARCA PROVINCE, ARGENTINA. Mw 5.8 (HRV). Felt (III) atCopiapo, Los Loros and Tierra Amarilla, Chile.

Centroid, Moment Tensor (HRV): Centroid origin time 16:42:10.9; Lat 27.90 S; Lon 66.46 W; Dep 175.6; Half- duration 1.9 sec; Principal axes (scale 10**17 Nm): (T) Val=5.55, Plg=10, Azm=55; (N) Val=-0.25. Plg=45, Azm=315; (P) Val=-5.30, Plg=43, Azm=155; Best double couple: Mo=5.4*10**17 Nm; NPl: Strike=185, Dip=52, Slip=-27; NP2: Strike=292, Dip=69, Slip=-139.

25 16 42 46.4& 37.530 N 118.817 W 5 43 CALIFORNIA-NEVADA BORDER REGION. <GM-?>. Mw 3.8 (BRK). ML3.9 (GM), 3.9 (BRK).

Moment Tensor (BRK): Dep 6; Principal axes (scale 10**14 Nm) : (T) Val=6.20, Plg=14, Azm=89; (N' Val=0.00, Plg=9, Azm=182; (P) Val=-6.20, Plg=73, Azm=3C3; Best double couple: Mo=6.2*10**14 Nm; NPl: Strike=7, Dip=60, Slip=-80; NP2: Strike=167, Dip=32, Slip=-107.

25 16 43 17.9& 37.215 N 27.788 E 10 G 8 TURKEY. <ISK>. MD 3.3 (ISK). 25 17 15 21.9 34.478 N 32.131 E 10 G 5.2 4.9 1.2 279 CYPRUS REGION. Mw 5.6 (HRV). ML 5.3 (Gil). MD 4.7 (ISK).

About 500 homes damaged on Cyprus. Fsl- throughout Cyprus and as far as Cairo, Egypt.

Centroid, Moment Tensor (HRV): Centroid origin time 17:15:29.7; Lat 34.56 N; Lon 31.41 E; Dep 15.0 Fix; Half- duration 1.2 sec; Principal axes (scale 10**17 Nm): (T) Val=3.15, Plg=35, Azm=341; (N) Val=-i.j3, Plg=51, Azm=128;

MAY 1999

(P) Val=-2.06, Plg=16, Azm=239; Best double couple:Mo=2.6»10**17 Nm; NP1: Strike=14, Dip=53. Slip=165; NP2:Strike=113, Dip=78, Slip=38.

25 17 42 31.6* 3.111 N 125.710 E 130 ? 4.5 1.0 31 TALAUD ISLANDS, INDONESIA 25 18 11 44.5 3.017 S 151.541 E 146 D 4.9 0.8 64 NEW BRITAIN REGION, P.X.G. 25 18 22 21.5* 2.139 S 133.374 E 33 N 4.64.2 1.3 19 IRIAN JAYA REGION, INDONESIA 25 18 32 39. li 37.516 N 118.805 W 14 12 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3 .0 (GX) , 3.1

(BRK).25 18 33 56.4* 12.568 S 166.955 E 257 ? 4.1 0.9 35 VANUATU ISLANDS 25 18 46 58.S? 14.01 S 167.08 E 257 ? 4.2 1.3 31 VANUATU ISLANDS25 18 51 38.06 38.690 N 26.290 E 10 7 AEGEAN S2A. <ATH>. MD 3.7 (ATH), 3.3 (ISK) . 25 19 28 25.36 40.132 N 28.959 E 7 7 TURKEY. <ISK>. MD 2.8 (ISK). 25 19 53 22.4- 2.111 S 133.385 E 33 N 4.6 1.1 15 IRIAN JAYA REGION, INDONESIA 25 19 56 40.16 60.423 N 152.564 W 99 81 SOUTHERN ALASKA. <AE1O. 25 20 13 48.86 32.476 S 71.538 W 51 9 NEAR COAST OF CENTRAL CHILE. <GUC>. 25 20 42 43.9? 13.43 S 16'6.74 E 161 ? 4.6 1.3 43 VANUATU ISLANDS 25 20 46 25.3* 50.532 N 18.840 E 5 G 1.1 6 POLAND. MG 2.8 (WAR).25 20 48 39.4 55.792 N 110.064 E 10 G 0.4 7 LAKE BAYKAL REGION, RUSSIA. Felt (II) at Verkhnyaya Zaimka. 25 20 51 02.Si 35.550 N 27.620 E 10 9 DODECANESE ISLANDS. <ATH>. MD 3.8 (ATH).25 20 57 18.56 43.200 N 1.000 W 8 18 PYRENEES. <LDG>. ML 2.6 (STR) , 2.4 (LOG). mbLg 2.5 (MOD). 25 21 28 22.7* 12.847 S 27.149 E 10 G 4.6 1.1 34 ZAMBIA. Felt at Lubumbashi, Congo. 25 21 58 31.26 46.800 N 7.200 E 2 7 SWITZERLAND. <LDG>. ML 2.0 (LOG). 25 23 01 24.16 37.059 N 27.668 E 9 10 TURKEY. <ISK>. MD 3.8 (ATH), 3.5 (ISK). 25 23 21 15.56 37.210 N 27.809 E 8 4 TURKEY. <ISK>. MD 2.8 (ISK). 25 23 30 45.8* 32.846 S 68.012 W 100 G 0.8 10 MENDOZA PROVINCE, ARGENTINA 25 23 39 47.4 43.510 N 127.280 W 10 G 4.64.0 0.8 156 OFF COAST OF OREGON25 23 57 56.36 32.950 S 70.242 W 106 9 CHILE-ARGENTINA BORDER REGION. <GUC>.26 00 15 05.4 37.221 N 27.831 E 10 G 0.4 7 TURKEY. MD 3.6 (ATH), 3.1 (ISK).26 00 35 34.3* 20.586 S 169.605 E 33 N 0.4 9 VANUATU ISLANDS26 00 37 12.9* 20.366 S 169.391 E 33 N 4.3 4.9 0.9 19 VANUATU ISLANDS26 00 37 53.5 6.319 S 106.461 E 136 D 5.0 1.0 69 JAWA, INDONESIA. Mw 5.2 (HRV) . Felt (III) at Jakarta. Also

felt (II) at Bengkulu. Sumatera.Centroid, Moment Tenser (HRV): Centroid origin time 00:37:54.7; Lat 6.53 S; Lon 106.52 E; Dep 142.6; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm): (T) Val=7.39, Plg=61, Azat=215; (N) Val=-0.36, Plg=29, Azm=35; (P) Val=-7.03, Plg=0, Azm=125; Best double couple: Mo=7.2*10**16 Nm ; NP1-. Strike=241, Dip=52, Slip=128; NP2: Strike=9, Dip=52, Slip=52.

26 00 56 28.16 35.063 S 70.596 W 1 11 CHILE-ARGENTINA BORDER REGION. <GUC>. 26 01 24 04.1 85.712 N 83.427 E 10 G 4.6 4.0 1.2 41 NORTH OF SEVERNAYA ZESCLYA26 01 29 17.26 60.276 N 151.769 W 59 25 KENAI PENINSULA, ALASKA. <AEIC>. ML 2.6 (AEIC) , 3.2 (PMR) . 26 02 12 28.06 35.974 N 120.527 W 5 7 CENTRAL CALIFORNIA. <GM-P>. MD 2.7 (GM) . ML 3.0 (PAS). 26 02 55 15.66 32.626 S 71.596 W 15 10 NEAR COAST OF CENTRAL CHILE. <GUC>. 26 03 01 05.56 33.867 S 70.342 W 114 8 CHILE-ARGENTINA BORDER REGION. <GUC>. 26 03 25 46.06 37.554 N 118.803 W 5 16 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 2.8 (GM) , 3.1

(BRK).26 03 41 34.0 51.563 N 16.128 E 5 G 0.6 14 POLAND. ML 3.5 (GRF) , 3.4 (VIE). 26 03 44 21.16 30.419 S 71.867 W 54 12 NEAR COAST OF CENTRAL CHILE. <GUC>.26 03 47 50.Si 37.557 N 118.800 W 4 10 CALIFORNIA-NEVADA BORDSR REGION. <GM-?>. MD 2.9 (GX) . 26 03 49 54.5* 15.889 N 100.660 W 10 G 1.3 11 NEAR COAST OF GUERRERC, MEXICO. MD 3.9 (UNM) . 26 03 53 53.46 37.556 N 118.803 W 5 50 CALIFORNIA-NEVADA BORD2R REGION. <GM-P>. Mw 4.4 (ERK) . ML

4.2 (GM) , 4.2 (BRK).Moment Tensor (BRK): Dep 8; Principal axes (scale 10**15 Nm): (T) Val=4.00, Plg=0, Azm=240; (N) Val=0.00, ?lg=l, Azm=150; (P) Val=-4.00, Plg=89, Azm=331; Best double couple: Mo=4.0*10**15 Nm; NP1: Strike=150, Dip=45. Slip=-91; NP2: Strike=331, Dip=45, Slip=-89.

26 04 14 31.06 33.007 S 70.349 W 102 11 CHILE-ARGENTINA BORDER REGION. <GUC>.26 04 15 40.76 37.558 N 118.803 W 4 7 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.9 (GM) . 26 04 18 12.36 37.550 N 118.804 W 5 19 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.0 (GM), 3.3

(BRK).26 04 39 25.76 32.460 S 71.350 W 48 11 NEAR COAST OF CENTRAL CHILE. <GUC>. 26 05 31 03.26 39.070 N 21.620 E 5 3.S 21 GREECE. <ATH>. ML 3.5 (ATH).26 05 41 10.2i 37.558 N 118.802 W 4 11 CALIFORNIA-NEVADA BORDSR REGION. <GM-P>. 5C, 2.8 (GX) . 26 06 48 43.=? 25.36 N 51.93 E 33 N 3.7 1.0 6 SOUTHERN IRAN26 07 11 02.86 37.485 N 118.842 W 5 7 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.7 (GX) . 26 07 12 16.9* 4.376 S 152.814 E 55 * 4.6 1.1 14 NEW BRITAIN REGION, P.N.G. 26 07 13 06.96 39.608 N 29.370 E 10 G 5 TURKEY. <ISK>. MD 2.9 (ISK).26 07 40 32.36 37.551 N 118.804 W 5 11 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.8 (GM) . 26 08 02 12.3? 32.47 N 137.61 E 141 ? 4.3 1.2 6 SOUTH OF HONSHU, JAPAX 26 09 11 55.06 39-696 N 29.447 E 14 5 TURKEY. <ISK>. MD 2.7 (ISK). 26 09 18 50.5 2.073 S 134.199 E 33 N 4.94.1 1.3 47 IRIAN JAYA REGION, INDONESIA. Mw 5 -1 (HRV).

Centroid, Moment Tensor (HRV) : Centroid origin tinre 09:18:48.6; Lat 2.61 S; Lon 134.34 E; Dep 15.0 Fi_x; Half- duration 1.0 sec; Principal axes (scale 10»*16 Nc) : (T) Val=4.61, Plg=22, Azn:=138; (N) Val=1.29, Plg=52, Azzn=25S; (P) Val=-5.90, Plg=2S, Azm=35; Best double couple: Mo=5.3*10**16 Nm; NF1: Strike=179, Di?=53, Slip=-174; N?2 : Strike=85, Dip=85, Slip=-38.

26 09 33 37.:* IS. 170 N 67.170 W 12 5 MONA PASSAGE. <MPR>. JCD 2 .2 (MPR) . 26 09 43 IT.2% 35.102 N 27.602 E 10 G 0.7 5 TURKEY. MD 2.8 (ISK). 26 09 43 21. ~i 3T.551 N 118.805 W 5 15 CALIFOF^IA-NEVADA BCr-TER REGION. <GM-?>. JC. 2.9 O<) , 3.1

.(BRK).26 09 44 59."* 53.255 N 126.999 W 10 G 4.1 1.4 11 NORTHWEST TERRITORIES CANADA 26 09 45 2S.r* 2.507 S 134.702 E 33 N 4.2 0.9 11 IRIAN JAYA REGION, INDONESIA 26 10 09 25.li 4:.494 N 26.096 E 10 G 6 TURKEY. <ISK>. MD 2.? ;ISK). 26 10 26 46.4* 44.787 N 149.236 E 114 ? 4.C 0.6 9 KURIL ISLANDS26 10 36 51.16 45.700 N 7.300 E 2 15 SWITZERLAND. <LDG>. >C. 2.2 (LDG) , 2.2 ' STrU . 26 11 59 02.;* 22 .947 N 143.903 E 33 N 4.: 1.1 21 VOLCANO ISLANDS REGIIJC26 12 22 24 i 42.738 N 16.990 E 10 G 1.1 20 NORTHWESTERN BALKAN r-SSION. MD 3.2 (?ZC-;. 26 12 24 31.2* 35.669 N 71.216 E 223 ? 4.1 0.7 16 AFGHANISTAN-TAJIKISTAN BORD REG. 26 12 37 OS.4i 33.188 N 115.577 W 2 13 SOUTHERN CALIFORNIA. <?AS-P>. ML 3.0 (PAS).

MAY 1999 PAGE 30

26 12 43 05.5 35.790 N 28.488 E26 13 16 38.3t 33.187 N 115.568 W26 13 47 31.1& 34.019 S 70.487 W26 14 17 59.4* 33.391 S 178.651 W26 14 38 51.8& 39.230 N 20.960 E26 15 10 37.0* 9.069 N 126.650 E26 15 39 59.3? 40.42 N 127.82 W26 16 01 29.2& 19.411 N 155.321 W

26 16 46 49.7& 44.625 N 7.606 E26 17 03 00.96 55.288 N 159.636 W26 18 04 07.26 37.545 N 118.806 W

26 18 35 42.6& 37.542 N 118.807 W

26 18 45 32.9& 37.5.43 N26 19 06 16.6* 85.533 N26 19 34 29.8& 37.542 N26 19 35 15.6& 37.480 N

26 19 54 27.3& 37.546 N26 19 58 33.7fc 37.576 N26 20 12 30.8 4.506 S26 20 16 13.9* 47.736 N26 20 26 25.6& 31.336 S

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27 06 31 45.4% 46.058 N27 06 38 26.6* 3.965 N27 08 08 58.7 58.652 N

14.784 E95.593 E

137.184 W

27 08 16 25. It 39.686 N21 08 34 34.5& 38.227 N27 08 48 51.6& 42.320 S

29.719 E 10 G30.219 E 10 G174.050 E 12

4.5 1.2 173 EASTERN MEDITERRANEAN SEA. MD 4.5 (ATH), 4.2 (ISK).8 SOUTHERN CALIFORNIA. <PAS-P>. ML 2.9 (PAS).

11 CHILE-ARGENTINA BORDER REGION. <GUC>. 4.8 1.0 23 SOUTH OF KERMADEC ISLANDS

4 GREECE-ALBANIA BORDER REGION. <ATH>. MD 2.9 (ATH). 4.4 0.7 14 MINDANAO, PHILIPPINE ISLANDS

1.5 6 OFF COAST OF NORTHERN CALIFORNIA37 HAWAII. <HVO-P>. MD 4.3 (HVO). Felt at Glenwood, Hawaiian

Volcano National Park, Hilo, Mauna Loa Estates and Volcano. 41 NORTHERN ITALY. <GEN>. ^ 3.1 (GEN), 2.9 (LOG), 2.6 (STR).8 ALASKA PENINSULA. <AEIC>. ML 2.6 (AEIC).

4.1 62 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. Mw 3.8 (BRK). ML4.2 (GM), 4.2 (BRK).

Moment Tensor (BRK): Dep 4; Principal axes (scale 10**14 Nm): (T) Val=6.50, Plg=l, Azm=53; (N) Val=0.00, Plg=58, Azm=145; (P) Val=-6.50, Plg=32, Azm=322; Best double couple: Mo=6.5*10**14 Nm; NP1: Strike=3, NP2: Strike=102, Dip=67, Slip=-157.

20 CALIFORNIA-NEVADA BORDER REGION. <GM-P>.(BRK).

11 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.9 (GM). 4.1 4.0 1.1 13 NORTH OF SEVERNAYA ZEMLYA

8 CALIFORNIA-NEVADA BORDER REGION. <GM-P>.10 CALIFORNIA-NEVADA BORDER REGION. <GM-P>.

(BRK).9 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. 9 CALIFORNIA-NEVADA BORDER REGION. <GM-P>.

4.5 1.0 41 BANDA SEA1.5 13 AUSTRIA. ML 2.6 (GRF). 2.6 (VIE), 2.4 (FUR).

11 OFF COAST OF CENTRAL CHILE. <GUC>.51 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. Mw 3.9 (BRK). ML

4.4 (GM), 4.4 (BRK).Moment Tensor (BRK): Dep 6; Principal axes (scale 10**14 Nm) : (T) Val=9.40, Plg=30, Azm=231; (N) Val=0.00, Plg=48, Azm=0; (P) Val=-9.40, Plg=27, Azm=124; Best double couple: Mo=9.4*10**14 Nm; NP1: Strike=358, Dip=88, Slip=42; NP2: Strike=266, Dip=48, Slip=177.

VANUATU ISLANDS KERMADEC ISLANDS, NEW ZEALAND TURKEY. <ISK>. MD 3.3 (ISK). FRANCE. <LDG>. ML 1.9 (LOG). NORTH OF SEVERNAYA ZEMLYA FRANCE. <LDG>. ML 2.0 (LOG).STRAIT OF GIBRALTAR. <MDD>. mbLg 1.7 (MOD). NORTHERN ITALY. <GEN>. ML 2.1 (GEN), 2.0 (LDG), MENDOZA PROVINCE, ARGENTINA. <GUC>. CHILE-ARGENTINA BORDER REGION. <GUC>. MENDOZA PROVINCE, ARGENTINA. <GUC>. PHILIPPINE ISLANDS REGION PYRENEES. <LDG>. ML 3.0 (LDG), 2.6 (STR). mbLg 2.5 (HDD).Felt (IV) in the Bigorre region, France.

NORTHERN ITALY. <LDG>. ML 1.7 (LDG). CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.1 (GM). ML 3.0(BRK).

CENTRAL ALASKA. <AEIC>. ML 3.0 (AEIC), 3.3 (PMR). CHILE-ARGENTINA BORDER REGION. <GUC>. TURKEY. <ISK>. MD 2.8 (ISK). GREECE. <ATH>. MD 3.0 (ATH). SOUTH OF JAWA, INDONESIA LUZON, PHILIPPINE ISLANDS. Mw 5.2 (HRV). Felt at Manila andOlongapo.

Centroid, Moment Tensor (HRV) 06:18:23.5; Lat 15.27 N; Lon 119.81 E; Dep 47.6; Half- duration 1.1 sec; Principal axes (scale 10**16 Nm): (T) Val=8.05, Plg=34, Azia=112; (N) Val=0.44, Plg=l4, Azm=12; (P) Val=-8.49, Plg=52, Azm=264; Best double couple: Mo=8.3*10**16 Nm; NP1: Strike=247, Dip=17, Slip=-34; NP2: Strike»10, Dip=81, Slip=-104.

10 G 0.3 5 NORTHWESTERN BALKAN REGION. ML 1.4 (LJU) . 33 N 4.7 1.3 26 OFF W COAST OF NORTHERN SUMATERA10 G 5.5 5.2 0.9 287 SOUTHEASTERN ALASKA. Mw 5.6 (GS), 5.6 (HRV). Me 5.4 (GS). ML

5.7 (PGC), 5.4 (AEIC), 5.1 (PMR). Felt at Gustavus, Juneau, Sitka, Skagway and Yakutat. Also felt at Whitehorse, Yukon Territory. Small precursor about five seconds prior to this event.Broadband Source Parameters (GS): Dep 10; NP1: Strike=45, Dip=67, Slip=60; NP2: Strike=281, Dip=37, Slip=140; Radiated energy 2.4*10**12 Nm.

Moment Tensor (GS): Dep 8; Principal axes (scale 10**17 Nm) : (T) Val=3.06, Plg=48, Azm=271; (N) Val=-0.05, Plg=38, Azm=62; (P) Val=-3.01, Plg=15, Azm=164; Best double couple: Mo=3.0*10**17 Nm; N~?l: Strike=293, Dip=45, Slip=151; M?2: Strike=45, Dip=70, 31ip=49.

Centroid, Moment Tensor (HRV): Centroid origin time 08:09:04.5; Lat 58.49 N Fix; Lon 137.37 W Fix; Dep 15.0 Bdy; Half-duration 1.6 sec; Principal axes (scale 10**17 Nm): (T) Val=3.41, ?lg=48, Azm=280; (N) Val=-0.34, Plg=42, Azm=89; (P) Val=-3.07, Plg=6, Azm=184; Best double couple: Mo=3.2*10**17 Nm; NP1": Strike=310, Dip=54, Slip=146; N'?2: Strike=61, Dip=63, Slip=42.

4 TURKEY. <ISK>. MD 2. 1 (ISK). 4 TURKEY. <ISK>. MD 3.0 (ISK).

12 OFF E. COAST OF S. ISLAND, N.Z. <WEL>. ML 3.9 (WEL).


MAY 1999

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SAN JUAN PROVINCE, ARGENTINA. <GUC>. IONIAN SEA. <ATH>. ML 3.7 (ATH). TURKEY. <ISK>. MD 2 .8 (ISK). NEAR COAST OF CENTRAL CHILE. <GUC>. TURKEY. <ISK>. MD 2.8 (ISK). LEEWARD ISLANDS. <FDF>. MD 3.0 (PDF).PYRENEES. <MDD>. ML 3.0 (STR), 2.9 (LOG). nibLg 2.5 (MDD). STRAIT OF GIBRALTAR. <MDD>. mbLg 2.0 (MOD). NORTHWESTERN BALKAN REGION. ML 2.2 (VIE). MINDANAO, PHILIPPINE ISLANDS CHILE-ARGENTINA BORDER REGION. <GUC>. CENTRAL CHILE. <GUC>. TURKEY. <ISK>. MD 2.8 (ISK). NEAR COAST OF CENTRAL CHILE. <GUC>. CENTRAL ALASKA. ML 2.7 (PMR).CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.8 (GM). NEAR COAST OF CENTRAL CHILE. <GUC>. SOUTHERN ALASKA. <AEIC>.NEAR COAST OF GUERRERO, MEXICO. <UNM>. MD 3.8 (UNM). WINDWARD ISLANDS. <TRN>. MD 3.8 (TRN).LAKE BAYKAL REGION, RUSSIA. Mw 5.1 (HRV). Felt (VI) at Verkhnyaya Zaimka, (V) at Kicbera, (IV) at Severobaykalsk, (III) at Nizhneangarsk and (II) at Bodaybo.

Centroid, Moment Tensor (HRV): Centroid origin time 16:01:25.2; Lat 55.55 N; Lon 109.17 E; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm): (?) Val=4.11, Plg=3, Azm=134; (N) Val=2.08, Plg=76, Azm=32; (P) Val=-6.19, Plg=13, Azm=225; Best double couple: Mo=5.2*10**16 Nm; NP1: Strike=269, Dip=78, Slip=-7; N?2: Strike=0, Dip=83, Slip=-168.

LAKE BAYKAL REGION, RUSSIA TURKEY. <ISK>. MD 3.2 (ISK).TURKEY. <ISK>. MD 3.1 (ISK).NORTHERN ITALY. ML 3.8 (GRF), 3.4 (CLL), 3.3 (LOG), 3.2 (VIE), 3.2 (FUR).

SWITZERLAND. <LDG>. ML 2.1 (LOG).TURKEY. <ISK>. MD 3.4 (ISK).VOLCANO ISLANDS REGIONHALMAHERA, INDONESIANEAR COAST OF CENTRAL CHILE.NEAR COAST OF CENTRAL CHILE.CENTRAL ALASKA. <AEIC>. ML 3.LOYALTY ISLANDS REGIONSOUTH CAROLINA. <MACRO>. mbLg 2.4 (CSC). Felt at Moore.IONIAN SEA. <ATH>. MD 3.1 (ATH).UNIMAK ISLAND REGION. <AEIC>. ML 3.3 (AEIC).SOUTH SANDWICH ISLANDS REGIONNORTHERN ITALY. ML 2.8 (VIE),CHILE-ARGENTINA BORDER REGION.NEAR COAST OF CHIAPAS, MEXICO.GULF OF ALASKA. ML 2.5 (AEIC).NORTHERN MID-ATLANTIC RIDGEGERMANY. <STR>. ML 1.8 (STR).TURKEY. <ISK>. MD 2.6 (ISK).FIJI ISLANDS REGIONLEEWARD ISLANDS. <TRN>. MD 3.6 (TRN), 3.3NORTHWESTERN BALKAN REGION. <PDG>. MD 2.2TURKEY. <ISK>. MD 3.0 (ISK).TURKEY. <ISK>. MD 2.8 (ISK).IRIAN JAYA REGION, INDONESIAOFF COAST OF OREGONSPAIN. <MDD>. mbLg 2.4 (MOD).GREECE-ALBANIA BORDER REGION. <ATH>. MD 3.1 (ATH).NEW GUINEA, PAPUA NEW GUINEATURKEY. <ISK>. MD 3.0 (ISK).SPAIN. <MDD>. mbLg 2.4 (MOD).NEAR COAST OF NICARAGUA. Mw 5.3 (HRV). Felt throughout Nicaragua.Centroid, Moment Tensor (HRV): Centroid origin time 04:52:58.5; Lat 12.39 N; Lon 87.78 W; Dep 68.8; Half- duration 1.1 sec; Principal axes (scale 10**17 Nm): (7) Val=1.00, Plg=63, Azm=21; (N) Val-G.«4, Plg=5, Azm=121; (P) Val=-1.04, Pig-26. Azm=214; Best double couple: Mo=1.0*10**17 Nm; NP1: Strike=316, Dip=19, Slip=106; *TP2: Strike=120, Dip=71, Slip=85.

SAN JUAN PROVINCE, ARGENTINA. <GUC>. MD 2.6 (GUC).LEEWARD ISLANDS. <TRN>. MD 3.0 (TRN), 3.0 (FDF).SPAIN. <MDD>. mbLg 2.4 (MOD).PACIFIC-ANTARCTIC RIDGESOUTHERN SUMATERA, INDONESIASOUTH OF FIJI ISLANDSTURKEY. <ISK>. MD 2.6 (ISK).CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.9 (GM).TURKEY. <ISK>. MD 2.6 (ISK).TURKEY. <ISK>. MD 2.7 (ISK).MINDANAO, PHILIPPINE ISLANDSCHILE-ARGENTINA BORDER REGION. <GUC>. MDNORTH ATLANTIC OCEAN. ML 3.6 (LOG). mbLg (II) at Xove, Spain.

CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.9 (GUC) SANTA CRUZ ISLANDSOFF EAST COAST OF HONSHU, JAPANAUSTRIA. ML 2.4 (STR), 2.3 (VIE), 2.2 (FBB).

<GUC>. <GUC>. .4 (PMR).

2.5 (LOG). <GUC>. MD 3.4 <UNM>. MD 4.1

(GUC) . (UNM).

(FDF). (PDG).

(GUC) (MOD)

MAY 1999 PAGE 32

28282828282828282828282828282828282828282828282828

11121212131314151617171818181819191919192020202020

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.305 N

.046 S

.539 N

.630 N

.136 N

.786 N

.630 N

.528 N

.814 N

.208 N

.83 S

.274 N

.885 N

.595 N

.57 S

.356 N

.754 N

.340 N

.279 N

.283 N

.109 N

.139 N

.535 N

.803 N

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5713815166

17891666827

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14915127

1522676

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.417 E

.08 W

.003 E

.636 W

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33 N33 N55 -2

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SOUTHERN IRANIRIAN JAYA, INDONESIAKURIL ISLANDSPUERTO RICO REGION. <MPR>. MD 2.8 (MPR).RAT ISLANDS, ALEUTIAN ISLANDSGUATEMALA. MD 4.5 (UNM) .PUERTO RICO REGION. <MPR>. MD 2.6 (MPR).PAKISTANTURKEY. <ISK>. MD 2.7 (ISK).RAT ISLANDS, ALEUTIAN ISLANDSSOUTH OF FIJI ISLANDSTURKEY. <ISK>. MD 2.6 (ISK).NORTH OF SEVERNAYA ZEMLYANORTH OF SEVERNAYA ZEMLYACHILE-ARGENTINA BORDER REGION. MD 3.8 (QUO .NEPALCENTRAL ALASKA. <AEIC>.KURIL ISLANDSTURKEY. <ISK>. MD 3.3 (ISK).SOUTHERN ALASKA. <AEIC>.ICELAND REGIONNORTHERN ITALY. <GEN>. ML 1.6 (GEN).GERMANY. ML 2.5 (LOG), 1.9 (UCC).AFGHANISTAN-TAJIKISTAN BORD REG.CALIFORNIA-NEVADA BORDER REGION. <GM-P>. Mw 3.6 (BRK) . ML3.8 (GM), 3.8 (BRK).

Moment Tensor (BRK): Dep 4; Principal axes (scale 10**14Nm): (T) Val*2.80, Plg=14, Azm=61; (N) Val=0.00, Plg=66,Azm=298; (P) Val=-2.80, Plg=19, Azm=156; Best doublecouple: Mo=2.8*10**14 Nm; NP1: Strike=290, Dip=86,Slip*-156; NP2: Strike=198, Dip=66, Slip=-4. SOUTHERN SUMATERA, INDONESIA TURKEY. <ISK>. MD 3.0 (ISK). NEAR COAST OF PERU. Felt (IV) at Nazca. SAN JUAN PROVINCE, ARGENTINA. MD 3.5 (GUC) . NORTHWESTERN BALKAN REGION. ML 1.9 (VIE), 1.4 (LJU). ANDAMAN ISLANDS, INDIA TURKEY. <ISK>. MD 2.9 (ISK). SOUTHERN NORWAY. ML 4.2 (BGS). TURKEY. <ISK>. MD 2.7 (ISK). CALIFORNIA-NEVADA BORDER REGION. POLAND. ML 3.3 (VIE). SOUTH OF HONSHU, JAPAN SOUTH SANDWICH ISLANDS REGION WINDWARD ISLANDS. <TRN>. MD 3.0 (TRN). NEAR EAST COAST OF KAMCHATKA TURKEY. <ISK>. MD 3.0 (ISK).GERMANY. ML 2.4 (VIE), 2.3 (LOG), 2.2 (STR). TURKEY. <ISK>. MD 3.1 (ISK). NEAR COAST OF CENTRAL CHILE. <GUC>. REPUBLIC OF SOUTH AFRICA EASTERN KASHMIR TURKEY. <ISK>. MD 2.5 (ISK). NORTHWESTERN BALKAN REGION. <PDG>. MD NEAR COAST OF JALISCO, MEXICO. MD 4.6 NEW BRITAIN REGION, P.N.G. CHILE-ARGENTINA BORDER REGION. <GUC>. SWITZERLAND. <LDG>. ML 2.0 (LOG). WINDWARD ISLANDS. <FDF>. MD 3.3 (TRN),at Le Francois, Martinique.NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.6 (GUC). OFF COAST OF CHIAPAS, MEXICONORTHWESTERN BALKAN REGION. ML 2.7 (VIE), 2.1 (LJU) ALBANIA. <PDG>. MD 3.4 (PDG). SOUTHERN ALASKA. <AEIC>. ML 2.5 (AEIC). SPAIN. <MDD>. mbLg 2.9 (MOD). ML 2.8 (LOG). NEAR COAST OF OAXACA, MEXICO. MD 4.3 STRAIT OF GIBRALTAR. <MDD>. mbLg 3.5 NORTHERN COLOMBIA FIJI ISLANDS REGION TAIWAN REGION UNITED KINGDOM. <BGS>. ML 2.2 (BGS).Garten and Carrbridge, Scotland. SPAIN. <MDD>. mbLg 1.7 (MOD).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.9 (GUC). TRINIDAD. MD 3.1 (TRN).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.9 (GUC). SPAIN. <MDD>. mbLg 1.6 (HDD). CHILE-ARGENTINA BORDER REGION. <GUC>. KURIL ISLANDS. Felt (II) at Severo-Kurilsk. NORTH OF SEVERNAYA ZEMLYA NORTHERN IRAN. Felt at Sabzevar.IONIAN SEA. <ATH>. MD 3.0 (ATH).LAKE BAYKAL REGION, RUSSIANORTHWESTERN BALKAN REGION. ML 2.2 (VIE), 1.6 (LJU)SWITZERLAND. <LDG>. ML 2.0 (LOG).PACIFIC-ANTARCTIC RIDGEFRANCE. <LDG>. ML 1.6 (LOG).SOUTH SANDWICH ISLANDS REGIONNEAR COAST OF GUERRERO, MEXICO. MD 3.8 (UNM).HINDU RUSH REGION, AFGHANISTANNEAR COAST OF CENTRAL CHILE. <GUC>.NORTHERN TERRITORY, AUSTRALIA

2.3 (PDG) (UNM).

3.2 (PDF). Felt (II)

(UNM). (MDD).

Felt (III) at Boat of

MD 3.0 (GUC)

MAY 1999

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XIZANG. Mw 5.4 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 20:10:50.6; Lat 32.81 N; Lon 93.77 E; Dep 33.0 Fix; Half- duration 1.4 sec; Principal axes (scale 10**17 Nm) : (T) Val=1.25, Plg=5, Azm=126; (N) Val=0.07, Plg=79, Azm=9; (P) Val=-1.32, Plg=10, Azm=217; Best double couple: Mo=1.3*10**17 Nm; NP1: Strike=261, Dip=80, Slip=-3; NP2: Strike=352, Dip=87, Slip=-170.

SWITZERLAND. ML 2.6 (FBB), 2.6 (LOG), 2.4 "(VIE), 2.3 (STR). SOUTHERN CHILEKENAI PENINSULA, ALASKA. <AEIC>. ML 2.9 (AEIC), 3.2 (PMR). TURKEY. <ISK>. MD 3.4 (ISK). GUERRERO, MEXICO. <ISK>. MD 3.8 (UNM). TURKEY. <ISK>. MD 2.9 (ISK). SOUTHEAST OF RYUKYU ISLANDS TURKEY. MD 2.8 (ISK). TURKEY. <ISK>. MD 3.2 (ISK). NICARAGUAUNIMAK ISLAND REGION. <AEIC>. ML 3.4 (AEIC). CHILE-ARGENTINA BORDER REGION. <GUC>. TURKEY. <ISK>. MD 2.7 (ISK). PYRENEES. <LDG>. ML 2.2 (STR), 1.9 (LOG). SOUTHERN IRAN TRISTAN DA CUNHA REGION TURKEY. <ISK>. MD 2.5 (ISK). MARIANA ISLANDSNORTHERN ITALY. ML 2.7 (VIE), 2.1 (LJU). TURKEY. <ISK>. MD 2.6 (ISK). NORTH ISLAND, NEW ZEALAND. <WEL>. SPAIN. <MDD>. mbLg 1.8 (HDD). NORTHERN MOLUCCA SEA. Mw 5.1 (HRV). Felt (II) on Ternate,Indonesia.

Centroid, Moment Tensor (HRV): Centroid origin time 02:21:41.8; Lat 1.58 N Fix; Lon 126.53 E Fix; Dep 50.9; Half-duration 1.0 sec; Principal axes (scale 10**16 Nm) : (T) Val=4.74, Plg=73, Azm=154; (N) Val=-0.90, Plg=13, Azm=16; (P) Val=-3.84, Plg=ll, Azm=283; Best double couple: Mo=4.3*10**16 Nm; NP1: Strike=357, Dip=36, Slip=67; NP2: Strike=204, Dip=58, Slip=106. CHILE-ARGENTINA BORDER REGION. <GUC>. TURKEY. <ISK>. MD 2.9 (ISK). FRANCE. <GEN>. ML 2.1 (GEN), 1.8 (LOG). NEW BRITAIN REGION, P.N.G.CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.0 (GM). SAN JUAN PROVINCE, ARGENTINA. MD 3.4 (GUC). NEW GUINEA, PAPUA NEW GUINEA CALIFORNIA-NEVADA BORDER REGION(BRK).

TURKEY. <ISK>. MD 2.6 (ISK). CALIFORNIA-NEVADA BORDER REGION CALIFORNIA-NEVADA BORDER REGION(BRK).

STRAIT OF GIBRALTAR. <MDD>. mbLg 2.5 (MOD). NEW GUINEA, PAPUA NEW GUINEA TURKEY. <ISK>. MD 2.7 (ISK). NEAR COAST OF NICARAGUANEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.9 (GUC). MENDOZA PROVINCE, ARGENTINA. MD 3.7 (GUC). BANDA SEASPAIN. <MDD>. mbLg 2.4 (MOD). SWITZERLAND. <LDG>. ML 1.9 (LOG). SOUTH OF FIJI ISLANDS GUERRERO, MEXICO. MD 4.6 (UNM). SEA OF JAPANFRANCE. <LDG>. ML 1.7 (LOG). SOLOMON ISLANDS SOLOMON ISLANDS NEAR EAST COAST OF KAMCHATKACALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.9 (GM). SOUTHERN CALIFORNIA. <PAS-P>. ML 3.5 (PAS). Felt in the Los Angeles area. SOUTHERN CALIFORNIA. Angeles area. SOUTHERN CALIFORNIA. FRANCE. <LDG>. ML 2.2 LEEWARD ISLANDS. <FDF>. NORTHEAST OF TAIWAN CERAM SEA. Mw 5.1 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 13:23:58.3; Lat 1.97 S; Lon 125.25 E; Dep 63.2; Half- duration 1.0 sec,- Principal axes (scale 10**16 Nm) : (T) Val=3.93, Plg=0, Azm=126; (N) Val=3.32, Plg=73, Azm=36; (P) Val=-7.25, Plg=17, Azm=216; Best double couple: Mo=5.6*10**16 Nm; NP1-. Strike=259, Dip=78, Slip=-12; NP2: Strike=352, Dip=78, Slip=-168.

TURKEY. <ISK>. MD 2.7 (ISK). HALMAHERA, INDONESIA CARLSBERG RIDGE SOUTH OF FIJI ISLANDS LAKE BAYKAL REGION, RUSSIA. Mw 5.2 Verkhnyaya Zaimka,- (V) at Kichera; Severobaykalsk; (III) at Irkutsk; Tyrgana.

<GM-P>. MD 2.8 (GM). ML 3.1

<GM-P>. <GM-P>.

MD 2 MD 3

(GM) .(GM) . ML 3 . 0

<PAS-P>. ML 3.1 (PAS). Felt in the Los

<PAS-P> (STR), MD 3.1

ML 2.8 (PAS). 1.7 (LOG).

(TRN), 3.0 (PDF).

(HRV). Felt (VI) at(IV) at Bodaybo ar.d

(II) at Kumora and

MAY 1999 PAGE 34

Centroid, Moment Tensor (HRV): Centroid origin time 15:56:48.8; Lat 56.03 N; Lon 110.04 E; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm) : (T) Val=7.50, Plg=l, Azm=134; (N) Val=0.72, Plg=21, Azas=224; (P) Val=-8.22, Plg=69, Azm=40; Best double couple: Mo=7.9*10**16 Nm; NP1: Strike=204, Dip=47, Slip=-119; NP2: Strike=63, Dip=50, Slip=-62.

30 15 56 57.06 58.950 N 152.940 W 71 67 KODIAK ISLAND REGION. <AEIC>.30 15 58 06.36 37.519 N 118.818 W 4 15 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.0 (GM) . ML 3.1

(BRK). 16 01 14.1* 55.817 N 110.127 E 10 G 0.8 10 LAKE BAYKAL REGION, RUSSIA16 07 55.0? 13.43 S 165.89 E 122 ? 4.2 1.3 22 VANUATU ISLANDS17 01 05. It 62.730 N 148.680 W 8 49 CENTRAL ALASKA. <AEIC>. ML 2.5 (AEIC) .17 24 35.26 42.349 N 19.472 E 19 9 NORTHWESTERN BALKAN REGION. <PDG>. MD 1.6 (PDG) .18 42 24.46 37.060 N 2.580 W 15 11 SPAIN. <MDD>. mbLg 1.8 (MOD).19 00 29.0 15.814 S 174.798 W 174 * 4.8 0.9 64 TONGA ISLANDS19 04 25.66 32.575 N 104.664 W 10 G 19 NEW MEXICO. <SNM-P>. MD 3.9 (SNM) . mbLg 3.9 (GS) .20 31 57.06 44.850 N 114.150 W 10 G 7 WESTERN IDAHO. <BSE-P>. ML 3.1 (BSE) .22 32 10.86 37.070 N 3.980 W 0 G 5 SPAIN. <MDD>. mbLg 1.0 (MOD).23 12 38.3* 51.499 N 16.024 E 5 G 0.6 8 POLAND. ML 3.3 (VIE).23 34 37.7& 38.210 S 176.860 E 190 8 NORTH ISLAND, NEW ZEALAND. <WEL>.23 58 44.66 54.620 N 161.460 W 20 15 ALASKA PENINSULA. <AEIC>. ML 2.8 (AEIC).01 52 20.8& 35.248 N 119.260 W 6 G 6 CENTRAL CALIFORNIA. <PAS-P>. ML 2.8 (PAS).02 11 26.06 32.535 S 71.690 W 16 12 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC) .02 53 15.56 39.330 N 23.160 E 16 8 AEGEAN SEA. <ATH>. ML 3.1 (ATH) .03 22 40.8 43.171 N 144.505 E 71 * 4.1 0.8 28 HOKKAIDO, JAPAN REGION. Felt (III JMA) in the Shirunai

area. Felt in many parts of southeastern Hokkaido.31 03 25 24.6 58.871 S 25.378 W 33 N 4.4 0.9 27 SOUTH SANDWICH ISLANDS REGION31 03 57 26.5? 21.69 S 178.89 W 534 ? 4.7 1.1 14 FIJI ISLANDS REGION31 04 37 55.96 39.377 N 28.167 E 10 G 5 TURKEY. <ISK>. MD 2.8 (ISK).31 04 42 32.3* 2.892 S 139.320 E 33N4.0 1.1 7 NEAR NORTH COAST OF IRIAN JAYA31 04 44 25.56 47.600 N 2.800 W 5 4 FRANCE. <LDG>. ML 1.7 (LOG).31 05 11 06.6 36.642 N 142.295 E 33 N 4.0 0.8 14 OFF EAST COAST OF HONSHU, JAPAN31 05 27 39.06 36.277 N 118.328 W 5 5 CENTRAL CALIFORNIA. <PAS-P>. ML 2.8 (PAS).31 08 22 30.6 31.466 S 68.923 W 100 G 1.2 20 SAN JUAN PROVINCE, ARGENTINA. MD 4.1 (GUC).31 08 22 46.4 12.849 S 166.813 E 151 D 4.9 1.1 106 SANTA CRUZ ISLANDS. Mw 5.2 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 08:22:46.2; Lat 13.15 S; Lon 166.94 E; Dep 146.4; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm): (T) Val=7.06, Plg=57, Azm=172; (N) Val=0.02, Plg=33, Azm=0; (P) Val=-7.08, Plg=4, Azm=268; Best double couple: Mo=7.1*10**16 Nm; NP1: Strike=328, Dip=50, Slip=45; NP2: Strike=205, Dip=57, Slip=130.

31 08 33 05.36 31.695 S 70.490 W 110 15 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.5 (GUC). 31 08 35 03.8* 40.534 N 42.494 E 10 G 4.2 1.0 10 TURKEY. MD 4.2 (ISK).31 09 41 38.66 32.499 S 71.699 W 29 12 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.6 (GUC). 31 10 09 18.0& 37.860 N 21.140 E 5 6 SOUTHERN GREECE. <ATH>. MD 3.2 (ATH). 31 10 23 35.56 35.925 N 31.624 E 10 G 13 CYPRUS REGION. <ISK>. MD 3.6 (ISK). 31 10 35 09.96 41.147 N 29.367 E 7 7 TURKEY. <ISK>. MD 2.6 (ISK). 31 10 46 38.96 35.560 N 26.810 E 24 3.5 7 CRETE. <ATH>. MD 3.8 (ATH).31 11 12 52.36 32.257 S 70.292 W 122 13 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.2 (GUC). 31 11 33 35.0? 6.59 S 154.30 E 175 ? 4.2 0.9 11 SOLOMON ISLANDS31 12 07 14.6& 37.600 N 21.250 E 5 8 SOUTHERN GREECE. <ATH>. ML 3.4 (ATH). 31 12 53 19.66 37.540 N 20.920 E 20 4 IONIAN SEA. <ATH>. MD 3.1 (ATH). 31 12 59 47.76 14.561 N 60.991 W 5 4 WINDWARD ISLANDS. <FDF>. MG 1.9 (PDF). 31 13 00 30.6 44.773 N 10.513 E 10 G 1.1 43 NORTHERN ITALY. ML 3.4 (LDG), 3.2 (VIE), 2.9 (STR) . 31 13 06 13.26 34.470 S 70.419 W 3 10 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.3 (GUC). 31 13 24 40.9 36.754 N 5.290 E 10 G 4.2 1.1 105 NORTHERN ALGERIA 31 13 52 56.36 41.125 N 35.625 E 5 4 TURKEY. <ISK>. MD 3.0 (ISK). 31 14 03 40.76 48.300 N 3.300 W 2 9 FRANCE. <LDG>. ML 2.9 (LDG). 31 14 17 06.96 37.020 N 21.580 E 5 7 SOUTHERN GREECE. <ATH>. MD 2.8 (ATH). 31 14 19 45.3* 30.503 N 138.890 E 424 * 4.0 0.6 14 SOUTH OF HONSHU, JAPAN31 15 12 26.06 17.279 N 100.818 W 5 9 GUERRERO, MEXICO. <UNM>. MD 3.9 (UNM) . 31 15 54 03.1* 51.814 N 7.950 E 10 G 1.0 6 GERMANY. ML 2.5 (UCC).31 16 27 21.36 37.522 N 118.825 W 4 11 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.8 (GM) . 31 16 29 38.46 58.342 N 152.135 W 32 30 KODIAK ISLAND REGION. <AEIC>. ML 2.7 (AEIC). 31 16 52 30.5 58.556 S 25.400 W 33 N 4.6 0.8 20 SOUTH SANDWICH ISLANDS REGION31 17 02 57.96 32.222 S 70.055 W 117 12 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.0 (GUC). 31 17 08 50.66 16.227 N 98.532 W 18 11 NEAR COAST OF GUERRERO, MEXICO. <UNM>. MD 4.1 (UNM). 31 17 24 03.96 63.179 N 150.495 W 116 36 CENTRAL ALASKA. <AEIC>. 31 18 16 31.3* 34.527 N 136.900 E 339 3.1 0.9 10 WESTERN HONSHU, JAPAN31 18 46 03.26 16.220 N 98.142 W 5 7 NEAR COAST OF GUERRERO, MEXICO. <UNM>. MD 3.8 (UNM). 31 19 11 30.3 29.272 N 52.003 E 33 N 4.5 1.1 49 SOUTHERN IRAN 31 19 15 36.7 25.807 S 140.189 E 10 G 0.6 9 QUEENSLAND, AUSTRALIA 31 19 34 50.5 55.798 N 110.169 E 10 G 4.5 4.7 1.0 59 LAKE BAYKAL REGION, RUSSIA. Mw 5.0 (HRV). Felt (V) at

Verkhnyaya Zaimka; (IV) at Kichera; (III) at Nizhneangarsk and Severobaykalsk; (II) at Uoyan.

Centroid, Moment Tensor (HRV): Centroid origin time 19:34:52.7; Lat 55.99 N; Lon 110.00 E; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm) : (T) Vai=3.43, Plg=19, Azm=180; (N) Val=1.60, Plg=9, Aza=87; (P) Val=-5.02, Plg=69, Azm=332; Best double couple: Mc=4.2*10**16 Nm; NP1: Strike=285, Dip=27, Slip=-69; NP2: Strike=82, Dip=64, Slip=-100.

31 19 58 13.6* 5.911 S 129.196 E 237 * 4.6 0.6 10 BANDA SEA 31 19 59 26.2 29.021 N 98.614 E 52 * 4.8 4.2 0.8 144 XIZANG31 20 16 11.2* 31.601 S 179.730 E 450 G 4.2 0.7 18 KERMADEC ISLANDS REGION 31 20 33 41.5* 55.751 N 110.143 E 10 G 3.6 1.3 13 LAKE BAYKAL REGION, RUSSIA 31 21 06 23.1* 28.842 N 131.201 E 33 N 4.C 1.3 14 SOUTHEAST OF RYUKYU ISLANDS 31 21 38 57.9* 55.697 N 110.428 E 10 G 3.7 1.2 12 LAXS BAYKAL REGION, RUSSIA 31 21 59 31.5* 31.842 N 141.711 E 33 N 1.0 8 SOOTH OF HONSHU, JAPAN31 22 36 47.7& 33.164 S 70.254 W 1 10 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.4 (GUC). 31 22 49 08.5? 7.25 S 129.25 E 156 ? 4.5 1.3 10 BAS3A SEA

HAY 1999

31 23 17 17.1 50.530 N 18.831 E 5 G 1.2 10 POLAND. ML 2.9 (VIE), 2.8 (WAR).

Compiled by John J. Bellini, Pamela J. Benfield, Don L. Blakeman, Charles G. Bufe, George L. Choy, Stuart K. Kcyar.agi.Briar. C. Lassige, Alena L. Leeds, John H. Minsch, Waverly J. Person, Bruce W. Presgrave, Stuart A. Sipkin,William K. Smith, Trina F. Vithayathil and Madeleine D. Zirbes.

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usesffjgpco for a changing world

U.S. Department of the Interior U.S. Geological Survey

Monthly Listing

JUNE 1999

ORIGIN TIMEUTC

DAY HR MN SEC

GEOGRAPHICCOORDINATESLAT LONG

DEPTH MAGNITUDE SD NO.GS STA

MB Msz USED

REGION, CONTRIBUTED MAGNITUDES AND COMMENTS

01 00 49 05.8? 5.16 S 152.27 E01 00 58 04.2& 36.800 N 5.570 W01 01 09 59.4 24.064 N 121.812 E01 02 11 42.7% 39.319 N 28.241 E01 02 53 43.8& 39.369 N 28.174 E01 03 04 35.7* 55.648 S 124.264 W01 03 08 52.4 55.680 S 123.955 W

0101010101010101010101010101010101010101010101010101010101010101

0303030303030404050607070808080808080909090910111111111112121212

1931405054562657310241582324283138470731345250062331384814264049

16.04.44.18.50.25.50.59.50.48.33.54.09.2201.44.2656.05.3206,40,58,25.57,2657,49,06360420

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222 S391 N404 N258 N461 N030 N,260 S,267 N.150 N.722 N.20 S.632 N.07 S.702 N.723 N,493 N.680 N.228 N.504 N.00 S.994 S.000 S.619 N.871 N.801 N.310 N.521 N.267 S.446 S.880 S.884 N.378 N

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65 * 4.7 1.1 9 NEW BRITAIN REGION, P.N.G.8 13 STRAIT OF GIBRALTAR. <MDD>. mbLg 2.2 (MDD).

33 N 4.2 0.7 12 TAIWAN 10 G 0.6 6 TURKEY. MD 3.1 USK) .6 5 TURKEY. <ISK>. MD 2.8 (ISK).

10 G 4.8 0.8 47 SOUTHERN EAST PACIFIC RISE 10 G 4.84.9 0.8 59 SOUTHERN EAST PACIFIC RISE. Mw 5.3 (HRV) .

Centroid, Moment Tensor (HRV): Centroid origin time 03:09:01.6; Lat 55.79 S; Lon 124.05 W; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**17 Nm): (7) Val=1.02, Plg=26, Azm=184; (N) Val=0.11, Plg=0, Azm=2~i,- (P) Val=-1.14, Plg=64, Azm=4; Best double couple: Mo=l.l*10**17 Nm; NP1: Strike=273, Dip=19, Slip=-90; N?2: Strike=94, Dip=71, Slip=-90.

CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.6 (GUC). TURKEY. <ISK>. MD 2.8 (ISK). NEAR S. COAST OF HONSHU, JAPAN KODIAK ISLAND REGION TURKEY. <ISK>. MD 2.8 (ISK). SPAIN. <MDD>. mbLg 2.6 (MDD). NORTH ISLAND, NEW ZEALAND. <WEL>.CENTRAL ALASKA. <AEIC>. ML 2.5 (AEIC) , 2.7 (PMR) . GERMANY. <FBB>. ML 2.0 (FBB), 1.9 (UCC). HALMAHERA, INDONESIA FIJI ISLANDS REGION TURKEY. <ISK>. MD 2.8 (ISK). SOUTH OF KERMADEC ISLANDS OFF COAST OF NORTHERN CALIFORNIA OFF COAST OF NORTHERN CALIFORNIA TURKEY. <ISK>. MD 2.7 (ISK). OFF COAST OF NORTHERN CALIFORNIA ARABIAN SEAMICHOACAN, MEXICO. <UNM>. MD 3.6 (UNM). SOUTH SANDWICH ISLANDS REGION NEAR N COAST OF NEW GUINEA, PNG. OFF E. COAST OF N. ISLAND, N.Z. <WEL>. OFF COAST OF NORTHERN CALIFORNIA TURKEY. <ISK>. MD 3.1 (ISK). SOUTHERN ALASKA. <AEIC>. WINDWARD ISLANDS. MD 3.1 (TRN).NORTHWESTERN BALKAN REGION. <PDG>. MD 1.6 (PDG) . CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2 . 6 (GUC). EASTERN NEW GUINEA REG., P.N.G. SAN JUAN PROVINCE, ARGENTINA. MD 4.3 (GUC). CALIFORNIA-NEVADA BORDER REGION. ML 3.1 (GS), 3.3 (PAS . HINDU RUSH REGION, AFGHANISTAN. Mw 5.1 (HRV). Centroid, Moment Tensor (HRV): Centroid origin time 12:49:25.7; Lat 36.78 N; Lon 70.56 E; Dep 76.7; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm) : (7 Val=4.96, Plg=21, Azm=307; (N) Val=-0.80, Plg=33, Azr.=rl; (P) Val=-4.16, Plg=49, A:m=190; Best double couple: Mo=4.6*10**16 Nm; NP1: Strike=354, Dip=37, Slip=-153; :c?2 Strike=242, Dip=74, Slip=-56.

4.7 0.9 18 SOUTH OF KERMADEC ISLANDS45 CENTRAL ALASKA. <AEIC>.

4.1 1.1 15 EASTERN NEW GUINEA REG., P.N.G. 1.3 29 NORTHERN ITALY. ML 2.7 (LDG).

6 NORTHERN ITALY. <GEN>. ML 1.8 (GEN). 1.2 6 AUSTRIA. ML 2.7 (VIE), 2.3 (LJU).1.1 8 CZECH AND SLOVAK REPUBLICS. ML 3.7 (GRF), 3.2 (VIE), 2 1

(CLL), 3.0 (FUR).

0.1.

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114

JUN 1999 PAGE 2

01 15 18 01.8 32.369 N 115.224 W 5 G 5.0 1.2 133 CALIF.-BAJA CALIF. BORDER REGION. Mw 5.0 (KRV). MD 5.1(ECX). ML 4.9 (PAS). Several buildings damaged in the Ejido Nuevo Leon-Ejido Michoacar. de Ocampos area; felt at Jiexicali, Baja California. Felt at El Cer.rro, Holtville and San Diego, California. Also felt at Yuira, Arizona.

Centroid, Moment Tensor (HRV): Centroid origin time 15:18:02.5; Lat 32.20 N; Lon 115.36 W; Dep'lS.O Fix; Half4| duration 1.0 sec; Principal axes (scale 10**16 Nm): (T) Val=4.11, Plg=l, Azm=286; (N) Val=-1.09, ?lg=13, Azm=16; (P) Val=-3.01, Plg=77, Azm=192; Best double couple: Mo=3.6*10**16 Nm; NP1: Strike=3, Dip=46, Slip=-108; NP2: Strike=208, Dip=47, Slip=-73.

01 15 41 52.4* 0.185 S 123.194 E 127 * 4.1 1.3 11 KINAHASSA PENINSULA, SULAWESI01 16 27 01.2* 23.067 S 170.293 E 33 N 4.5 1.0 18 LOYALTY ISLANDS REGION01 17 58 52.8 35.898 N 115.840 W 5 G 0.8 27 CALIFORNIA-NEVADA BORDER REGION. ML 3.3 (PAS).01 17 59 49.4 6.849 S 129.592 E 173 E 5.0 0.8 105 BANDA SEA. Mw 5.3 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 17:59:50.4; Lat 7.01 S; Lon 129.38 E; Dec 178.5; Half- duration 1.0 sec; Principal axes (scale 10**17 Nm): (T) Val=1.01, Plg=ll, Azm=233; (N) Val=0.05, ?lg=69, Azm=lll; (P) Val=-1.06, Plg=17, Azm=327; Best double couple: Mo=1.0*10**17 Nm; NP1: Strike=9, Dip=70, Slip=-4; NP2: Strike=101, Dip=86, Slip=-160.

01 19 43 09.0& 37.560 N 118.795 W 5 16 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. K3 3.2 (GM) . ML 3.2(BRK).

01 20 02 36.1* 10.846 S 165.842 E 33 N 4.3 1.1 20 SANTA CRUZ ISLANDS01 20 43 45.5* 0.218 N 127.797 E 33 N 4.4 1.1 8 HALMAHERA, INDONESIA01 20 49 01.0& 38.040 N 21.030 E 5 7 GREECE. <ATH>. ML 3.5 (ATH).01 21 42 14.0 4.343 N 73-616 W 33 N 4.7 1.0 63 COLOMBIA. ML 5.1 (RSNC) . Felt at Bogota and in much of

central Colombia.01 21 44 01.3& 33.160 S 70.849 W 12 5 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.3 (GUC).01 22 40 07.5% 15.914 N 98.886 W 10 G 0.9 10 OFF COAST OF GUERRERO, MEXICO. MD 4.1 (UNM) .01 23 57 34.8? 27.86 S 177.43 W 159 ? 4.6 1.1 16 KERMADEC ISLANDS REGION02 00 23 19.4 0.053 N 123.484 E 161 D 5.8 0.9 253 KINAHASSA PENINSULA, SULAWESI. Mw 5.7 (GS) , 5.7 (HRV). Felt

(IV) at Luwuk, (III) at Gorontalo and (II) at Manado. Moment Tensor (GS): Dep 130; Principal axes (scale 10**17 Nm): (T) Val=3.39, Plg=67, Azm=0; (N) Val=0.21, Plg=7, Azm=255; (P) Val=-3.60, Plg=22, Azm=162; Best double couple: Mo=3.5*10**17 Nm,- NP1: Strike=239. Dip=24, Slip=73; NP2: Strike=78, Dip=68, Slip=97.

Centroid, Moment Tensor (HRV): Centroid origin time 00:23:21.3; Lat 0.18 N; Lon 123.72 E; Dep 135.3; Half- duration 1.7 sec; Principal axes (scale 10**17 Nm): (T) Val=3.86, Plg=63, Azm=28; (N) Val=0.02, Flg=16, Azm=263; (P) Val=-3.88, Plg=21, Azm=167; Best double couple: Mo=3.9*10**17 Nm; NP1: Strike=231, Dip=28, Slip=54; NP2: Strike=90, Dip=67, Slip=107.

02 00 31 43.5* 73.125 N 6.157 E 10 G 4.9 4.2 1.4 30 GREENLAND SEA02 01 32 49.8? 36.96 S 95.S3 W 10 G 4.2 1.1 14 W2ST CHILE RISE02 01 50 31.6& 37.020 N 5.72C W 14 10 SPAIN. <MDD>. mbLg 2.3 (HDD).02 02 18 54.8% 43.955 N 5.894 E 10 G D.4 5 NEAR SOUTH COAST OF FRANCE. ML 1.9 (LDG) .02 02 52 38.1 45.472 N 151.001 E 33 N 4.7 4.1 D.7 83 KURIL ISLANDS02 04 03 09.5& 60.541 N 150.697 W 39 21 KENAI PENINSULA, ALASKA. <AEIC>. ML 2.7 (AEIC) .02 04 07 44.5* 5.941 S 146.600 E 70 * 3.8 1.6 12 EASTERN NEW GUINEA REG., P.N.G.02 07 07 55.1& 36.750 N 21.620 E 9 7 SOUTHERN GREECE. <ATH>. ML 3.4 (ATH).02 07 09 07.lt 39.228 N 27.042 E 9 4 TURKEY. <ISK>. MD 2.8 (ISK).02 07 21 40.0* 6.766 S 129.847 E 68 ? 4.5 1.1 20 BANDA SEA02 07 29 48.7* 25.421 S 179.488 W 424 * 4.5 1.2 33 SOUTH OF FIJI ISLANDS02 07 34 41.5 20.858 S 179.002 W 644 5.0 0.7 161 FIJI ISLANDS REGION. Mw 5.4 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 07:34:42.9; Lat 20.81 S; Lon 178.71 W; Dep 644.3; Half- duration 1.1 sec; Principal axes (scale 10**17 Nm): (T) Val=1.13, Plg=22, Azm=128; (N) Val=0.1S, ?lg=3, Azm=219; (F) Val=-1.32, Flg=68, Azm=315; Best double couple: Mo=1.2*10**17 Nm; NP1: Strike=213, Dip=23, Slip=-97; NP2: Strike=40, Dip=67. Slip=-87.

02 07 42 33.9? 53.05 S 26.52 E 10 G 3.9 1.0 9 SOUTH OF AFRICA02 08 15 01.9& 54.557 N 162.942 W 80 9 ALASKA PENINSULA. <AEIC>.02 08 27 21.0& 39.377 N 27.264 E 14 4 TURKEY. <ISK>. MD 2.8 (ISK).02 08 45 02.8& 37.257 N 121.639 W 7 9 CENTRAL CALIFORNIA. <GM-P>. MD 2.8 (GM) .02 08 49 -18.1& 33.540 S 71.065 W 65 12 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.1 (GUC).02 08 51 48.7* 45.275 N 153.067 E 33 N 3."9 1.2 18 EAST OF KURIL ISLANDS02 09 51 37.5? 7.27 N 125.82 E 33 N 4.3 0.6 14 K1NDANAO, PHILIPPINE ISLANDS02 09 58 47.6 39.643 N 117.816 W 5 G 1.1 8 ilEVADA. ML 3.0 (GS) .02 10 25 03.lt 61.674 N 150.359 W 43 51 SOUTHERN ALASKA. <AEIC>. ML 3.5 (AEIC), 3.8 (PMR) . Felt

(III) at Big Lake. Also felt in the Anchorage area.02 10 37 00.0 38.787 N 14.143 E 10 G 4.2 1.1 31 SICILY02 10 50 32.9& 39.707 N 29.647 E 10 G 4 TURKEY. <ISK>. MD 2.6 (ISK).02 10 56 48.9& 39.557 N 29-463 E 10 4 TURKEY. <ISK>. MD 2.7 (ISK).02 12 51 01.1* 55.732 N 110.365 E 10 G 3.6 1.0 9 LAKE BAYKAL REGION, RUSSIA02 13 19 07.2 8.761 N 93.8 = 2 E 60 7 4.5 1.0 33 .\ICOBAR ISLANDS, INDIA02 13 54 08.5& 54.851 N 160.550 W 0 19 ALASKA PENINSULA. <AEIC>. ML 3.0 (AEIC).02 13 57 09.1& 40.712 N 30.0C4 E 14 5 TURKEY. <ISK>. MD 2.9 (ISK).02 14 03 13.3& 40.680 N 29.99; E 10 G 4 TURKEY. <ISK>. MD 2.6 (ISK).02 15 13 26.7 37.887 N 116.OCC W 5 G 3.4 13 SOUTHERN NEVADA. ML 2.7 (GS). Small foresr.cck about 24

seconds prior to this event.02 16 06 47.5& 34.861 S 71.022 W 85 7 \*EAR COAST OF CENTRAL CHILE. <GUC>.02 16 16 41.3* 6.777 S 154.925 E 93 7 4.1 :. 9 20 SOLOMON ISLANDS02 16 40 55.9 44.645 N 34.6E2 E 1C r 1.3 15 CRIMEA REGION, UKRAINE02 17 10 36.4& 33.133 S 70.279 W <- 10 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.2 (GUC).02 17 39 51.8* 51.831 N 175.252 W 33 N 3.8 C.9 14 .-JTOREANOF ISLANDS, ALEUTIAN IS.02 18 36 49.4 41.068 N 2.985 E 10 G 1.0 11 SPAIN. ML 2 . 5 (LDG). rrJDLg 2.5 (MOD).02 19 00 02.2& 36.900 N 3.54: V.' 03 5 STRAIT OF GIBRALTAR. <KDD>. robLg 1.6 (X3Z .

JUN 19Sr

02 19 06 34.0* 30.136 N02 19 33 23.2& 38.160 N02 20 31 45.8& 38.480 S102 21 26 30.8& 40.455 N

67.753 E 33 N22.160 E 35175.860 E 178124.641 W 21

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03 16 33 07.0& 34.067 N 116.365 W

4.5 1.4 19 PAKISTAN6 GREECE. <ATH>. MD 3.0 (ATH).

14 NORTH ISLAND, NEW ZEALAND. <WEL>.13 NEAR COAST OF NORTHERN CALIF. <GM~P>. Mw 3.9 (3RK) . ML 3 . 5

(GM) , 3.5 (BRK). Felt in the Honeydew-Petrolia area.Moment Tensor (BRK): Dep 11; Principal axes (scale 10**14 Nm) : (T) Val=8.26, Plg=2^5, Azm=68; (N) Val=0.00, Plg=63, Azm=275; (P) Val=-8.26, Plg=ll. Azm=163; Best double couple: Mo=8.3*10**14 Mm.- NP1: Strike=114, Dip=81, Slip=155; NP2: Strike=208. Dip=65, Slip=10.

SOUTHERN NEVADA. ML 3.5 (GS).KURIL ISLANDSWEST CHILE RISEEASTERN HONSHU, JAPANNEAR COAST OF OAXACA, MEXICO. MD 4.3 (UNM) .NEAR SOUTH COAST OF FRANCE. <GEN>. ML 2.4 (LDG).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.2 (GUC).MID-INDIAN RIDGESOUTHERN GREECE. <ATH>. ML 3 .5 (ATH).GUERRERO, MEXICO. <UNM>. MD 3.7 (UNM).CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.8 (GM), 3.8 (BRK).

TURKEY. <ISK>. MD 3.0 (ISK).SOUTHERN IRANNEAR COAST OF GUERRERO, MEXICO. <UNM>. MD 4.0 (UNM).TURKEY. <ISK>. KD 2.5 (ISK).NEAR COAST OF CENTRAL CHILE. <GUC>.GERMANY. <LDG>. ML 2.4 (LDG), 2.3 (FUR), 2.0 (FBB).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.2 (GUC).NORTHWESTERN BALKAN REGION. ML 3.3 (LDG), 3.0 (TRI), 3.0 (LJU).

ALBANIA. MD 3.4 (PDG), 3.4 (ATH). Felt (IV) at Ohrid, former Yugoslav Republic of Macedonia.GERMANY. <FBB>. ML 2.5 (UCC), 2.4 (FBB).BONIN ISLANDS REGIONTURKEY. <ATH>. MD 3.7 (ATH).IONIAN SEA. <ATH>. MD 3.4 (ATH).BANDA SEASOUTH OF FIJI ISLANDSTURKEY. <ISK>. MD 2.6 (ISK).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.3 (GUC).SOUTHERN IRANTANZANIATURKEY. <ISK>. MD 2.7 (ISK).HAWAII. <HVO-P>. MD 4.4 (HVO). Felt at Kailua-Kona and Waimea.

TURKEY. <ISK>. MD 2.9 (ISK).TURKEY. <ISK>. MD 3.2 (ISK).AFGHANISTAN-TAJIKISTAN BORD REG.FOX ISLANDS, ALEUTIAN ISLANDS. <AEIC>. ML 3.6 (AEIC).TURKEY. <ISK>. MD 3.4 (ISK).SWITZERLAND. <STR>. ML 2.0 (LDG), 1.9 (STR), 1.7 (FBB).TURKEY. <ISK>. MD 2.7 (ISK).BANDA SEASOUTH OF AFRICA. Mw 5.4 (HRV) .Centroid, Moment Tensor (HRV): Centroid origin time 13:45:26.2; Lat 48.02 S; Lon 32.08 E; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**17 Nm) : (T) Val=1.44, Plg=21, Azm=137; (N) Val=-0.36, Plg=57, Azm=12; (P) Val=-1.08, Plg=24, Azm=237; Best double couple: Mo=1.3*10**17 Nm; NP1: Strike=276, Dip=57, Slip=-3; NP2: Strike=8, Dip=88, Slip=-147.

4 TURKEY. <ISK>. MD 2.8 (ISK).5 WINDWARD ISLANDS. <TRN>. MD 3.1 (TRN).

1.0 66 SOUTH OF PANAMA. Mw 5.2 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 14:17:36.3; Lat 7.23 N; Lon 82.23 W; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm) : (T) Val=6.75, Plg=17, Azm=146; (N) Val=1.30, Plg=66, Azm=281; (P) Val=-8.05, Plg=16, Azm=51; Best double couple: Mo=7.4*10**16 Nm; NPl: Strike=189, Dip=66, Slip=179; NP2: Strike=279, Dip=89, Slip=24.

22 COLORADO. <USBR>. ML 3.6 (GS) . Felt at Bedrock and Paradox.8 GUERRERO, MEXICO. <UNM>. MD 3.9 (UNM).

5.4 0.9 237 TAIWAN REGION. Mw 5.4 (GS), 5.4 (HRV). Felt (IV JMA) at Nar_- ao; (III JMA) at Hua-lien and I-lan; (II JMA) at Taipei; ~ JMA) at Chia-i, Tai-chung and Tai-tur.g. Felt ir. many pares of northern and central Taiwan. Also felt (II JKA) on Iriomote-jima and Yonaguni-jima; (I JMA) on Ishigaki-jims Ryukyu Islands.

Moment Tensor (GS): Dep 74; Principal axes (scale 10**17 Nm) : (T) Val = 1.30, Plg = 61, Azm=9; (N) Val=O.OC, Plg=27, Azm=167; (P) Val=-1.30, Plg=9, Azm=262; Best double couple: Mo=1.3*10**17 Nm; NPl: Strike=21, Dip=43, Slip=132; NP2: Strike=149, Dip=60, Slip=58.

Centroid, Moment Tensor (HRV): Centrcici origin rime 16:11:45.0; Lat 24.36 N; Lon 122.28 E; Dep 84.7; Half- duration 1.2 sec; Principal axes (scale 10**17 Nm): (T) Val = 1.47, Plg = 45, Azm=29; (N) Val = -C.46, Plg = 3T, Azm=169,- (P) Val=-1.02, Plg=21, Azm=276; Best double couple: Mo=1.2*10**17 Nm; NPl: Strike=51, Dip=41, Slip=158; NP2: Strike=158, Dip=76, siip=51.

32 SOUTHERN CALIFORNIA. <PAS-P>. ML 3.7 »?AS). Felr at Lanciers.

JUN 1999 PAGE 4

03 16 48 11.3& 37.471 N 118.789 W 6 16 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.3 (GM) , 3.4(BRK).

03 17 48 26.5* 45.286 N 148.846 E 206 ? 4.1 1.1 29 KURIL ISLANDS03 .17 57 43.8? 24.78 N 60.78 E 10 G 4.5 1.1 25 GULF OF OMAN03 18 17 06.7& 37.210 N 3.650 W 1 7 SPAIN. <MDD>. mbL-g 2.0 (MOD).03 18 53 01.2& 39.337 N 27.367 E 11 5 TURKEY. <ISK>. MT 3.0 (ISK).03 19 30 59.5* 34.817 N 138-363 E 208 4.5 0.6 17 NEAR S. COAST OF HONSHU, JAPAN03 20 13 31.0* 52.545 S 26.438 E 10 G 4.5 1.1 12 SOUTH OF AFRICA03 20 16 53. 6& 33.727 S 71.258 W 33 10 NEAR COAST OF CENTRAL CHILE. <GUC>.03 20 39 03.8& 33.044 S 72.035 W 13 11 OFF COAST OF CENTRAL CHILE. <GUC>. MD 3 . 4 (GUC).03 21 19 13.1? 4.64 S 152.36 E 75 ? 3.8 1.4 7 NEW BRITAIN REGION, P.N.G.03 21 36 27.7& 37.537 N 118.805 W 3 61 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. Mw 4.3 (BRK). ML

4.4 (GM), 4.4 (BRK).Moment Tensor (BRK): Dep 4; Principal axes (scale 10**15 Nm) : (T) Val=3.70, Plg=ll, Azm=234; (N) Val = 0.00, Plg=49, Azm=131; (P) Val=-3.70, Plg=39, Azm=333; Best double couple: Mo=3.7*10**15 Nm; NP1: Strike=109, Dip=72, Slip=-142; NP2: Strike=5, Dip=54, Slip=-22.

03 21 39 16.1& 37.550 N 118.805 W 5 30 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.3 (GM) . 3.4(BRK).

03 21 55 50.5& 38.916 N 27.302 E 8 7 TURKEY. <ISK>. MD 3.1 (ISK).03 21 56 17.1& 37.544 N 118.803 W 3 11 CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.0 (GM) . ML 3.2

(BRK).03 23 18 22.5 19.180 N 145.321 E 189 ? 4.6 0.8 39 MARIANA ISLANDS04 01 47 39.0& 31.951 S 70.583 W 127 10 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.5 (GUC).04 01 54 36.3& 62.885 N 148.910 W 61 17 CENTRAL ALASKA. <AEIC>. ML 2.6 (AEIC).04 02 00 41.6& 33.373 S 70.875 W 70 - 12 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.2 (GUC).04 02 11 40.0& 45.900 N 2.200 E 5 6 FRANCE. <LDG>. ML 1.7 (LOG).04 02 26 26.4& 36.070 N 2.620 W 9 5 STRAIT OF GIBRALTAR. <MDD>. mbLg 2.4 (MOD).04 02 36 06.2& 44.285 N 7.246 E 4 6 NORTHERN ITALY. <GEN>. ML 1.5 (GEN).04 02 47 42.2& 36.230 N 5.580 WO 9 STRAIT OF GIBRALTAR. <MDD>. robLg 2.4 (MOD).04 03 17 34.7* 53.689 N 164.316 W 33 N 3.7 0.9 14 UNIMAK ISLAND REGION. ML 3.6 (AEIC).04 04 25 57.1 53.859 N 164.064 W 33 N 5.3 5.3 1.1 264 UNIMAK ISLAND REGION. Mw 5.8 (HRV) . ML 5.3 (AEIC). Felt at

Cold Bay.Centroid, Moment Tensor (HRV): Centroid origin time 04:26:00.8; Lat 53.57 N; Lon 163.82 W; Dep 31.0 Bdy; Half- duration 2.1 sec; Principal axes (scale 10**17 Nm): (T) Val=5.27, Plg=65, Azm=322; (N) Val=0.06, Plg=4, Azm=60; (P) Val=-5.33, Plg=24, Azm=151; Best double couple: Mo=5.3*10**17 Nn; NP1: Strike=249. Dip=21, Slip=100; NP2: Strike=59, Dip=70, Slip=86.

04 04 46 41.3? 24.77 N- 63.64 E 33 N 1.3 9 OFF COAST OF PAKISTAN04 05 55 26.6 53.637 N 163.986 W 33 N 3.9 0.5 20 UNIMAK ISLAND REGION. ML 3.8 (AEIC).04 06 26 19.1* 20.074 S 66.413 E 10 G 4.3 0.9 16 MAURITIUS-REUNION REGION04 07 11 46.4& 36.450 N 10.460 W 25 23 NORTH ATLANTIC OCEAN. <MDD>. mbLg 2.9 (MOD).04 07 26 50.2 44.182 N 10.860 E 10 G 1.1 33 NORTHERN ITALY. KL 3.2 (VIE), 3.1 (LOG), 2.7 (LJU).04 08 18 15.7& 35.330 S 71.300 W 103 13 CENTRAL CHILE. <CTC>. MD 3.1 (GUC).04 08 54 52.0? 42.52 N 144.20 E 33N4.3 1.0 7 HOKKAIDO, JAPAN REGION04 09 12 50.0 40.802 N 47.448 E 33 N 5.4 5.0 1.2 305 EASTERN CAUCASUS. Mw 5.5 (CSEM), 5-4 (GS), 5.4 (HRV). Me 5.6

(GS). Eighteen people injured, more than 50 houses damaged and estimated 5 million U.S. dollars damage in central Azerbaijan, mostly in the Agdas area. Felt <V) at Xankandi and (III) at Baku, Azerbaijan. Also felt (V) at Goris and Ijevan; (III) at Gyumri, Stepanavan, Vanadzor and Yerevan, Armenia. Felt (IV) at Tbilisi, Georgia and (II) at Derbent, Gunib and Makhachkala, Russia. Also felt in the Ardabil region. Iran.

Broadband Source Parameters (GS): Dep 14; NP1: Strike=165, Dip=55, Slip=40; NP2: Strike=49. Dip=58, Slip=138; Radiated energy 5.4*10*»12 Nm.

Moment Tensor (GS) .- Dep 12; Principal axes (scale 10**17 Nm) : (T) Val=1.24, Plg=86, Azm=33; (N) Val=-0.04, Plg=3, Azm=194; (P) Val=-1.30, Plg=l, Azr^=284; Best double couple: Mo=1.3*10**17 Nis; NP1: Strike=18, Dip=44, Slip=95; NP2: Strike=191, Dip=46, Slip=85.

Centroid, Moment Tensor (HRV): Centroid origin time 09:12:51.8; Lat 40.58 N; Lon 47.62 E; Dep 32.7 Fix; Half- duration 1.3 sec; Principal axes (scale 10**17 Nm) : (T) Val=1.76, Plg=75, Azm=3; (N) Val=-0.22, Plg=14, Azm=210;

- - ^ (P) Val=-1.54. Plg=7, Azm=118; Best double couple:Mo=1.6*10»*17 Nca; NPl: Strike=193, Dip=40, _Slip=68; NP2: Strike=40, Dip=53, Slip=107.

Moment Tensor (CSEM): Dep 20; Principal axes: (T) Plg=85, Azm=320; (N) Plg=3, Azm=197; (P) Plg=4, Azm=107; Best double couple: Mo=1.8*10**17 Nm; NPl: Strike=194, Dip=41, Slip=86; NP2: Scrike=19, Dip=49, Slip=93.

04 10 30 37.3 36.690 N 31.688 E 33 N 4.0 1.4 23 TURKEY. MD 3.8 (ISK).04 10 49 17.3* 41.059 N 47.503 E 33 N 4.3 1.0 13 EASTERN CAUCASUS04 11 18 37.4 31.555 S 69.112 W 121 3.9 1.0 23 SAN JUAN PROVINCE, ARGENTINA. MD 4.2 (GUC).04 11 26 02.7& 34.900 S 70.324 W 150 12 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.2 (GUC).04 11 39 35.7& 39.183 N 27.264 E 10 G 4 TURKEY. <ISK>. MD 2.7 (ISK).04 11 39 49.4& 42.980 N 0.700 W 10 G 6 PYRENEES. <STR>. ML 2.2 (STR).04 11 51 21.5* 51.098 N 158.039 E 33 N 3.9 1.3 12 NEAR EAST COAST CF KAMCHATKA04 11 56 09.9* 15.617 S 173.311 W 33 N 4.54.5 1.1 53 TONGA ISLANDS04 12 31 45.3* 23.466 S 20.990 W 10 G 4.4 1.0 19 SOUTH ATLANTIC OCEAN04 12 49 38.1 50.737 N 16.004 E 5 G 0.9 7 POLAND. ML 3.1 (VIE).04 12 15 35.7 29.828 N 114.093 W 10 G 4.5 1.2 49 BAJA CALIFORNIA, MEXICO04 12 28 47.3& 41.175 N 28.833 E 10 G 4 TURKEY. <ISK>. M2 2.7 (ISK).04 13 45 35.8 3.873 S 128.490 E 137 4.7 0.9 37 SERAM, INDONESIA04 12 59 21.9* 36.C01 N 141.667 E 33 N 4.1 1.3 24 NEAR EAST COAST Or HONSHU, JAPAN04 14 32 04.5* 6.449 S 150.433 E 33 N 4.4 . 1.4 11 NEW BRITAIN REGION, P.N.G.04 15 29 45.0& 36.980 N 115.170 W 6 15 CALIFORNIA-NEVAE.-. BORDER REGION. <REN-P>. HD 2.9 (REN) . ML

3.2 (GS).

PAGE JUN 1S9S

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798 N142 N786 S,815 N676 S,027 S908 S,900 N,341 N.098 N,185 N.500 N.558 N.49 N.106 S.000 N.722 N.000 N.510 S.280 N.400 N.62 N.486 N.899 N.979 N.520 S.949 N

.310 N

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.880 N

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.200 N

.228 N

.541 N

.079 N

.757 N

.944 N

.347 N

.848 N

.170 S

.410 N

.292 N

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.423 N

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.301 N

.350 N

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.244 N

.323 N

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<GM-P>. MD 3.0 (GM)

<GUC>.(PMR),

i (ISK)4.2 (AEIC).

<GUC>. MD 2.5 (GUC)

(GM) . 3 (ATM). <GM-P>. MD 2.8 (GM) .

(STR), 2.1 ML 4.5 (PMR) , (LDG).

<GUC>.

(LDG). 4.3 (AEIC).

MD 3.6 (GUC).

NEAR COAST OF CENTRAL CHILE. Felt (II) at Vallenar.BANDA SEASOUTHERN ALASKA. <AEIC>. ML 2.5 (AEIC).SOUTHERN CALIFORNIA. <FAS-P>. ML 2.9 (PAS).BAJA CALIFORNIA, MEXICONORTHERN ITALY. <GEN>. ML 2.6 (GEN), 2.6 (LDG), 2.6 (S7R).BAJA CALIFORNIA, MEXICOUNIMAK ISLAND REGION. <AEIC>. ML 3.4 (AEIC).SOUTH OF HONSHU, JAPANDODECANESE ISLANDS. <ATH>. MD 3.6 (ATH).TURKEY. <ISK>. MD 2.7 (ISK).CALIFORNIA-NEVADA BORDER REGION.SOUTH OF MARIANA ISLANDSGREECE. <ATH>. MD 3.1 (ATH).OAXACA, MEXICO. MD 3.9 (UNM).SPAIN. <MDD>. mbLg 2.3 (MOD).NEAR COAST OF CENTRAL CHILE.UNIMAK ISLAND REGION. ML 4.3AEGEAN SEA. MD 3.6 (ATH) ,' 3.fLEYTE, PHILIPPINE ISLANDSNORTHERN ITALY. <GEN>. ML 2.0 (GEN), 1.8 (LDG), 1.8 (STR).NEW BRITAIN REGION, P.N.G.RYUKYU ISLANDSTURKEY. <ISK>. MD 2.8 (ISK).CORSICA. <GEN>. ML 1.9 (GEN).CENTRAL ALASKA. <AEIC>.CHILE-ARGENTINA BORDER REGION.TURKEY. <ISK>. MD 3.0 (ISK).NEW BRITAIN REGION, P.N.G.NEW BRITAIN REGION, P.N.G.MINAHASSA PENINSULA, SULAWESIFRANCE. <LDG>. ML 2.0 (LOG).GREECE. MD 4.2 (ATH).NORTHERN IRANNORTHERN CALIFORNIA. <GM-P>. MD 2.8DODECANESE ISLANDS. <ATH>. MD 3.CALIFORNIA-NEVADA BORDER REGION.RYUKYU ISLANDSTONGA ISLANDSPYRENEES. <LDG>. ML 2.2UNIMAK ISLAND REGION.FRANCE. <LDG>. ML 1.9NEAR COAST OF CENTRAL CHILE.EASTERN HONSHU, JAPANNORTHERN ITALY. <LDG>. ML 2.1 (STR), 2.0 (LDG).MARIANA ISLANDS REGIONKURIL ISLANDSAUSTRIA. ML 2.2 (LDG), 2.1 (VIE).NORTHERN XINJIANG, CHINAFIJI ISLANDS REGIONNORTHEAST OF TAIWAN. Felt (I JMA) on Iriomote-jima, RyukyuIslands.

NORTHERN ITALY. <GEN>. ML 1.9 (GEN).CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.9 (GM). TURKEY. <ATH>. MD 3.5 (ATH), 3.2 (ISK). TALAUD ISLANDS, INDONESIACHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.9 (GUC). SWITZERLAND. <LDG>. ML 2.5 (LDG), 2.5 (STR). KENAI PENINSULA, ALASKA. <AEIC>. ML 2.8 (AEIC). CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.9 (GM). SOUTHERN NEVADA. ML 3.4 (GS). TURKEY. <ISK>. MD 3.0 (ISK). CENTRAL ALASKA. <AEIC>. NEAR COAST OF NICARAGUA OFF EAST COAST OF HONSHU, JAPAN SOUTHERN SUMATERA, INDONESIA SPAIN. <MDD>. mbLg 2.2 (MOD). TAIWAN REGIONFOX ISLANDS, ALEUTIAN ISLANDS. <AEIC>. SOUTHERN IRANGERMANY. <LDG>. ML 2.1 (LOG), 2.1 (STR). HINDU RUSH REGION, AFGHANISTAN PANAMA-COSTA RICA BORDER REGION KERMADEC ISLANDS, NEW ZEALAND IONIAN SEA. <ATH>. MD 3 .2 (ATH). HOKKAIDO, JAPAN REGION CENTRAL ALASKA. <AEIC>. NEW GUINEA, PAPUA NEW GUINEA GREECE. <ATH>. MD 3.0 (ATH).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.2 (GUC). - KENAI PENINSULA, ALASKA. <AEIC>. UNIMAK ISLAND REGION. <A£IC>. REVILLA GIGEDO ISLANDS REGION CRETE. <ATH>. MD 3.6 (ATH). CYPRUS REGION. <CSS>. 1C. 2.3 (CSS). CHILE-ARGENTINA BORDER REGION. <GUC>. GERMANY. ML 2.4 (LDG), '..b (STR), 2.2

MD 3 .2 (VIE).

(GUC)

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JUN 1999 PAGE 6

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(STR). (STR). 6.3 (HRV). Me 6.1

Centroid, Moment Tensor (HRV): Centroid origin time 04:46:48.0; Lat 31.98 N; Lon 141.53 E; Dep 15.0 Fix; Half- duration 1.1 sec; Principal axes (scale 10**17 Nm): (T) Val=1.27, Plg=55, Azm=230; (N) Val=-0.35, Plg=19, Arn=350; (P) Val=-0.93, Plg=28, Azm=90; Best double couple: Mo=l.l*10**17 Nm; NPl: Strike=220, Dip=24, Slip=143 Strike=345, Dip=76, Slip=71.

SOUTH OF HONSHU, JAPANAEGEAN SEA. <ATH>. ML 3.1 (ATH).STRAIT OF GIBRALTAR. <MDD>. mbLg 2.1 (MDD).SWITZERLAND. <LDG>. ML 2.2 (LOG), 2.2 (STR).CHILE-ARGENTINA BORDER REGION. <GUC>.LAKE BAYKAL REGION, RUSSIA. Felt (IV) at Irkutsk and Tyrgana.SOUTH OF HONSHU, JAPANCHILE-ARGENTINA BORDER REGION. <GUC>.NORTHERN COLOMBIA. <RSNC>.SWITZERLAND. <LDG>. ML 2.3 (LOG), 2.2SWITZERLAND. <LDG>. ML 2.5 (LOG), 2.5NEAR COAST OF GUATEMALA. Mw 6.3 (GS), (GS). MD 5.8 (UNM). Felt in parts of Guatemala and southern Mexico. Also felt in western and central El Salvador, including San Salvador.

Broadband Source Parameters (GS): Dep 40; NPl: Strike=120, Dip=75, Slip=-150; NP2: Strike=22, Dip=61, Slip=-17 ; Radiated energy 2.7*10**13 Nm.

Moment Tensor (GS): Dep 45; Principal axes (scale 10**18 Nm) : (T) Val=2.67, Plg=5, Azm=66; (N) Val=0.01, Plg=40, Azm=161; (P) Val=-2.67, Plg=50, Azm=330; Best double couple: Mo=2.7*10**18 Nm; NPl: Strike=122, Dip=53, Slip=-143; NP2: Strike=7, Dip=61, Slip=-44.

Centroid, Moment Tensor (HRV): Centroid origin time 07:08:13.6; Lat 14.01 N; Lon 91.43 W; Dep 38.0; Half- duration 3.5 sec; Principal axes (scale 10**18 Nm) : (T) Val=2.29, Plg=28. Azm=222; (N) Val=0.84, Plg=35, Azm=110; (P) Val=-3.14, Plg=42, Azm=341; Best double couple: Mo=2.7*10**18 Nm; NPl: Strike=3, Dip=37, Slip=-13; NP2: Strike=104, Dip=82, Slip=-126.

CENTRAL ALASKA. <AEIC>. ML 3.0 (AEIC), 3.0CHILE-ARGENTINA BORDER REGION. <GUC>.STRAIT OF GIBRALTAR. <MDD>. mbLg 1.8CHILE-ARGENTINA BORDER REGION. <GUC>.STRAIT OF GIBRALTAR. <MDD>. mbLg 2.4CHILE-ARGENTINA BORDER REGION. <GUC>.

(PMR). MD 3.4.(GUC). (MDD).

.3 (GUC).MD 2. (MDD) . MD 2, 7 (GUC).

EASTERN CAUCASUS. Felt (III) at Makhachkala.ROMANIACALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.8 (GM).NEW BRITAIN REGION, P.N.G.CRETE. <ATH>. MD 4.0 (ATH).SOUTHERN ALASKA. <AEIC>. ML 3.6 (AEIC), 3.8 (PMR).NORTHWESTERN BALKAN REGION. ML 2.2 (VIE), 1.8 (LJU).TURKEY. <ISK>. MD 2.8 (ISK).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.5 (GUC).STRAIT OF GIBRALTAR. <MDD>. mbLg 1.7 (MDD).SOUTH OF AUSTRALIASVALBARD REGIONFRANCE. <LDG>. ML 1.8 (LDG).NORTHERN ITALY. <GEN>. ML 2.1 (GEN).SOUTHERN EAST PACIFIC RISENEAR COAST OF GUATEMALA. MD 4.5 (UNM).GERMANY. <FBB>. ML 3.2 (GRF). 2.9 (VIE), 2.8 (FBB), 2.5(FUR). Mining induced event in the Lorraine region, France.

CARLSBERG RIDGENEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.8 (GUC). TURKEY. <ISK>. KZ 2. 9 (ISK). CHILE-ARGENTINA BORDER REGION. <GUC>. MD

MD 3.70 (GUC). (GUC).NEAR COAST OF CENTRAL CHILE. <GUC>.

SOUTH OF AFRICACHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.7 (GUC).SPAIN. <MDD>. ML 2.1 (LDG). mbLg 1.8 (MDD).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.7 (GUC).PYRENEES. <LDG>. ML 2.2 (LDG).SWITZERLAND. <LDG>. ML 2.0 (LDG).DODECANESE ISLANDS. <ATH>. MD 3.7 (ATH).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.2 (GUC).NEAR SOUTH COAST OF FRANCE. <LDG>. ML 2.2 (LDG), 2.1 (STR)ALBANIA. MD 3.1 (PDG).GREECE. <ATH>. MD 3.0 (ATH).CENTRAL MEXICO. <UNM>. MD 3.5 (UNM).SPAIN. <MDD>. mbl-g 2.9GERMANY. ML 2.2 (VIE),SPAIN. <KDD>. mhlg 1.4NORTHERN ITALY. <GEN>.NORTHERN MOLUCCA SEANORTHERN ITALY. <3EN>.NORTHERN ITALY. <3EN>.NORTHERN ITALY. <GEN>.NORTHERN ITALY. <3EN>.OFF COAST OF CENTRAL CHILE.TURKEY. <ISK>. MD 3.3CANAR to.ANDS REGION.SOUTHc.iu\ ALASKA. <AEIC> .SOUTH OF KERMADEC ISLANDS

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JUN 1999

07 05 06 37.2* 36.156 N 137.129 E 281 0.9 707 05 10 02.5& 38.920 N 21.380 E 5 1107 06 19 39.8 53.661 N 164.013 W 33 N 3.5 0.5 1607 06 51 37.2* 31.651 S 68.315 W 100 G 1.0 1307 07 29 17.4& 39.203 N 27.264 E 5 407 07 31 29.7& 18.144 N 97.580 W 34 1207 07 45 49.0 8.586 N 125.854 E 33 N 5.2 5.4 1.3 72

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.727 N

.014 N

.456 N

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.039 N

.121 N

.256 N

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GREENLAND SEANORWEGIAN SEANORWEGIAN SEANORWEGIAN SEAGREENLAND SEA.

EASTERN HONSHU, JAPANGREECE. <ATH>. MD 3.3 (ATH).UNIMAK ISLAND REGIONSAN JUAN PROVINCE, ARGENTINA. KD 3.5 (GUC).TURKEY. <ISK>. MD 2.8 (ISK).CENTRAL MEXICO. <UNM>. MD 3.8 (UNM).MINDANAO, PHILIPPINE ISLANDS. Mw 5.7 (HRV). Twelve people injured and at least 20 buildings damaged or destroyed (VI RF) at Bayugan. Felt (V RF) at Butuan and San Francisco,- (IV RF) at Hinatuan and Lianga,- (II RF) at Bislig and Cagayan de Oro,- (I RF) on Camiguin.Centroid, Moment Tensor (HRV): Centroid origin time 07:45:50.9; Lat 8.57 N; Lon 126.00 E; Dep 22.8; Half- duration 1.7 sec; Principal axes (scale 10**17 Mm): (T) Val=3.84, Plg=25, Azm=25; (N) Val=-0.39, Plg=65, Azm=214; (P) Val=-3.44, Plg=3, Azm=116; Best double couple: Mo=3.6*10**17 Mm; NPl: Strike=163, Dip=70, Slip=16; NP2: Strike=68, Dip=75, Slip=160.

OFF COAST OF OREGONTURKEY. <ISK>. MD 2.7 (ISK).TURKEY. <ISK>. MD 2.7 (ISK).SOUTH OF HONSHU, JAPANTURKEY. <ISK>. MD 2.7 (ISK).TURKEY. <ISK>. MD 2.7 (ISK).GREENLAND SEAMINDANAO, PHILIPPINE ISLANDSNORWEGIAN SEAMINDANAO, PHILIPPINE ISLANDSGREENLAND SEANICOBAR ISLANDS, INDIASOUTH OF HONSHU, JAPANSPAIN. <MDD>. mbLg 3.6 (MOD). Felt (IV) at Albolote, Atarfe, Calicasas, Chauchina, Fuente Vaqueros, Lachar, Maracena, Peligros, Pinos Puente, Santafe and Trasmulas; (III) at Armilla, Chimeneas, Churriana de la Vega, Granada, Guevejar, Mala, Tiena la Baja and Valderrubio; (II) at Cogollos Vega, Padul and Pulianas,- (I) at Alfacar, Deifontes, Huetor-Tajar, Illora, Loja, Moraleda de Zafayona and Tozar.

TURKEY. <ISK>. MD 2.7 (ISK).SOUTH OF FIJI ISLANDSTURKEY. <ISK>. MD 2.8 (ISK).GREENLAND SEAGREENLAND SEAGREENLAND SEACENTRAL ALASKA. <AEIC>. ML 3.0 (AEIC), 3.2 (PMR).TURKEY. <ISK>. MD 2.9 (ISK).GREENLAND SEASOUTHERN INDIAGREENLAND SEA. Mw 5.5 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 16:10:37.8; Lat 72.68 N; Lon 4.36 E; Dep 15.0 Fix; Half- duration 1.4 sec; Principal axes (scale 10**17 Nm) : (T) Val=2.10, Plg=9. Azm=123; (N) Val=-0.25, Plg=35. Azm=27; (P) Val=-1.85, Plg=53, Azm=226; Best double couple: Mo=2.0*10**17 Nm; NPl: Strike=247, Dip=47, Slip=-38 Strike=6, Dip=63, Slip=-130.

NP2:

Mw 5.5 (HRV)Centroid origin time

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Centroid, Moment Tensor (HRV) 16:35:52.7; Lat 72.99 N; Lon 4.07 E; Dep 15.0 Fix; Half- duration 1.5 sec; Principal axes (scale 10**17 Nm} : (T) Val=2.19, Plg=18, Azm=116; (N) Val=0.08, Plg=32, Azm=14; (P) Val=-2.27, Plg=52, Azm=231; Best double couple: Mo=2.2*10**17 Nm; NPl: Strike=246, Dip=39, Slip=-32; NP2: Strike=l, Dip=71, Slip=-125.

GREENLAND SEAIRIAN JAYA, INDONESIATURKEY. <ISK>. MD 2.5 (ISK).CHILE-ARGENTINA BORDER REGION. <GUC>. MDCHILE-ARGENTINA BORDER REGION. <GUC>. MD

3.63.0

(GUC). (GUC).

NORTH ISLAND, NEW ZEALAND. <WEL>. ML 3. 1 (WED .CHILE-ARGENTINA BORDER REGION. NORTHERN ITALY. <GEN>. ML 2.0

<GUC>. (GEN). (STR), (GHN), (GEN).

MD 4.0 (GUC)

2.8 2.2

(LDG) . (LOG).

MD 3.7 (GUC).

NORTHERN ITALY. <GEN>. ML 2 . 9NORTHERN ITALY. <GEN>. ML 2.5NORTHERN ITALY. <GEN>. ML 1.8BONIN ISLANDS REGIONCHILE-ARGENTINA BORDE?. REGION.CHILE-BOLIVIA BORDER REGIONTURKEY. <ISK>. MD 3-7 (ISK).XIZANGGREECE. <ATH>. MD 3.1 (ATH).ALBANIA. MD 3.5 (ATH), 2.8 (PCGi.NEAR COAST OF CENTRAL CHILE, <GUC>. MD 2.6 (GUC)NORTHERN ITALY. <GEN>. ML 2.0 (GEN).SOUTHERN IRANGREECE. <ATH>. ML 3.G (ATH).CENTRAL CHILE; <GUC>. MD 3 . 1 (GUC).TURKEY. <ISK>. MD 2-6 (ISK).

JUN- 1999 PAGE 8

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IONIAN SEA. <ATH>. ML 4.8 (ATH). XD 4.4 (PDG).BANDA SEACENTRAL ALASKA. <AEIC>.CARLSBERG RID3ECOOK STRAIT, NEW ZEALAND. <WEL>.GERMANY. ML 3 .3 (GRF) , 3.0 (FUR), 3.0 (VIE). Mir.i-= induced event in the Lorraine region, Frar.ce.PYRENEES. <LD3>. ML 2.3 (STR), 2.1 (LDG).SOLOMON ISLANDSNORTHERN ALASKA. ML 3 . 2 (PMR).SOUTHERN ALASKA. <AEIC>.SOUTHERN ALASKA. <AEIC>.PERU-BOLIVIA BORDER REGIONNEAR COAST OF CENTRAL CHILE. <GUC>.NORTHERN ITALY. <LDG>. ML 2.4 (LDG), 2.3 (STR).BANDA SEAFOX ISLANDS, ALEUTIAN ISLANDSFOX ISLANDS, ALEUTIAN ISLANDSTURKEY. <ISK>. MD 2.7 (ISK).GREECE. <ATH>. MD 3.4TURKEY. <ISK>. MD 2.7TURKEY. MD 2-8 (ISK).FIJI ISLANDS REGIONNORTHERN COLCXBIA. <RSNC>.TURKEY. MD 3.3 (ISK).LEEWARD ISLAKDS. Mw 5.8 (HRV) on Martinique.

Moment Tensor (GS): Dep 29; Principal axes (scale 10**17 Nm) : (T) Val=4.21, Plg=54, Azm=150; (N) Val*-0.01, ?lg=13, Azm=258; (P> Val=-4.20, Plg=33, Azm=356; Best doable couple: Mo=4.2*10**17 Nm; NPl: Strike=126, Dip=17, Slip=140; Nr2: Strike=255, Dip=79, Slip*77.

Centroid, Moment Tensor (HRV): Centroid origin tiase 12:04:05.5; Lat 15.06 N; Lon 60.24 W; Dep 37.0 Boy; Half- duration 2.1 sec,- Principal axes (scale 10**17 Nn) : (T) Val=6.78, Plg=47, Azm=146; (N) Val=-0.86, Plg=26, Azm=267; (P) Val=-5.93, Plg=31, Azm=14; Best double couple-. Mo=6.3*10**17 Nm; NPl: Strike=156, Dip=27, Slip=l l; NP2: Strike=263, Dip=81, Slip=64.

-SOUTHERN GREECE. MD 4.2 (ATH).TURKEY. <ISK>. MD 2.7 (ISK).WINDWARD ISLANDS. <TRN>. MD 3.0WINDWARD ISLANDS. <TRN>. MD 3.4TURKEY. <ISK>. MD 2.7 (ISK).NEAR EAST COAST OF KAMCHATKANORTHEAST OF TAIWANNEAR COAST OF CHIAPAS,TURKEY. <ISK>. MD 2.7POLAND. ML 3.2 (VIE),TURKEY. <ISK>. MD 2.6FIJI ISLANDS REGIONCENTRAL ALASKA. <AEIC>. ML 2.SOUTHERN NEVADA. ML 2 . 9 (GS) .TURKEY. <ISK>. MD 2.4 (ISK).HALMAHERA, INDONESIANORTHWESTERN BALKAN REGION. ML 2 .4 (VIE)NORTHWESTERN BALKAN REGION. ML 2.8 (VIE), (IV) at Legatee and Postojna, Slovenia.

VANCOUVER ISLAND REGIONBONIN ISLANDS REGIONALBANIA. ML 4.4 (ATH), 4.0 (PDG).FOX ISLANDS, ALEUTIAN ISLANDS. <AEIC>. MLPYRENEES. ML 2.1 (STR).ALBANIA. <PE«3>. MD 2.1 (PDG).NEAR COAST Cr CENTRAL CHILE. <GUC>. MD 2.5NORTHERN ITALY. <GEN>. ML 1.8 (GEN).SOLOMON ISLANDSSOUTHERN GRESCE. <ATH>. MD 3.4 (ATH).TONGA ISLANDS. Mw 5.6 (HRV).Centroid, Mcoent Tensor (HRV): Centroid origin r- f 00:02:06.4; Lat 19.59 S; Lon 172.56 W; Dep 15.C Fix,- Half- duration 1.5 sec; Principal axes (scale 10**17 ii=.) : (T) Val=2.87, FIg=65, Azm=243; (N) Val=-0.05, Plg*l£, Azm=18; (P) Val=-2.£2, Plg=17, Azm=113; Best double couple:

(TRN) (TRN)

MEXICO (ISK). 2.6 (CLL) . >,ISK).

MD 4.0 (UNM).

(AEIC), 3.1 (PMR)

2.5 (LCU). Felt

3.2 (ASIC).

(GUC;

Dip=33, Slip=125; NP2:Mo=2.8*10**17 Nm; NPl: Strike=2 Strikers, Cip=64, Slip=70.

TONGA ISLANTSCYPRUS REGICIC. ML 4.1 (Gil), 4.C (CSS) . MD 4.0 CS?.}. Felt in the Larr^sca District and at Nicosia.

XIZANGGREECE. MD 3 . 1 (ATH), 2.8 (PDG). Felt (IV) in cr.e Prespa area, Bulgaria.

FRANCE. <LDG>. ML 1.7 (LDG).-VANCOUVER ISUiiND REGIONTURKEY. MD I-.5 (ATH), 3.3 (ISK).MINDANAO, PHILIPPINE ISLANDSMINDANAO, PHILIPPINE ISLANDS. Mw 5.5 (HRV).Centroid, Moment Tenser (HRV) : Csntroid origin ZLr^e 01:05:32.5 l,at 8.35 K; Lon 126.18 E; Dep 46.9- Half- duration l.i sec; Principal axss (scale 10"*1~ r~- . (T) Val=2.44, ?lg=25, Azir.=2 ; ^1) Y=i = -0.19, Plg=6i, Azn=193; (P) Val=-2.15, Plg=5, Aziu=zy4; 3est double couple: Mo=2 .3*10* "17 Nm; NPl: Strike=c~, Dip=69, Slip=l£3,- NP2:

JtlN 1999

Strike=163, Dip=76, Slip=22.09 01 28 11.0 8.520 N 125.741 E 33 N 4.5 1.0 21 MINDANAO, PHILIPPINE ISLANDS09 01 56 23.4& 45.000 N 5.700 E 2 7 FRANCE. <LDG>. Ml 1.8 (LDG).09 01 57 24.4* 59.416 S 24.891 W 33 N 4.5 0.5 14 SOUTH SANDWICH ISLANDS REGION09 01 58 05.5* 55.809 N 110.208 E 10 G 3.9 1.3 11 LAKE BAYKAL REGION, RUSSIA. Felt (IV) at Verkhnyaya la^r-ka

and (III) at Kichera.09 02 41 57.1* 6.495 S 130.062 E 100 G 0.8 10 BANDA SEA09 02 48 04.7 50.478 N 18.835 E 10 G 0.9 11 POLAND. ML 3.5 (VIE).09 03 00 41.2* 55.788 N 110.095 E 10 G 4.6 1.1 17 LAKE BAYKAL REGION, RUSSIA. Felt (V) at Verkhnyaya ZauJca

and (IV) at Kichera.09 03 11 39.9* 55.847 N 109.946 E 10 G 3.7 1.0 10 LAKE BAYKAL REGION, RUSSIA. Felt (IV) at Verkhnyaya Zai_=-<a

and (III) at Kichera.09 03 28 15.0 45.424 N ft.637 E 10 G 0.8 32 FRANCE. ML 2.4 (LDG), 2.4 (STR).09 04 01 36.8 40.251 N 20.680 E 10 G 1.1 6 GREECE-ALBANIA BORDER REGION. MD 2.9 (ATH) .09 04 05 44.5 53.039 S 46.839 W 10 G 5.4 5.4 1.0 66 SOUTH ATLANTIC OCEAN. Mw 5.8 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 04:05:48.9; Lat 53.20 S; Lon 47.41 W; Dep 17.0 Bdy; Half- duration 1.7 sec; Principal axes (scale 10**17 Nm): (1" Val=5.83, Plg=49, Azm=265; (N) Val=0.08, Plg=18, Azm=153; (P) Val=-5.91, Plg=35, Azm=50; Best double couple: Mo=5.9*10**17 Nm; NP1: Strike=87, Dip=20, Slip=23; NKI: Strike=335, Dip=83, Slip=108.

09 04 41 13.9& 45.500 N 6.600 E 2 4 FRANCE. <LDG>. ML 1.4 (LDG).09. 05 49 45.6% 17.451 N 100.493 W 10 G 0.5 6 GUERRERO, MEXICO. MD 3.7 (UNM).09 06 06 02.9 6.016 S 148.664 E 83 D 4.9 0.9 45 NEW BRITAIN REGION, P.N.G.09 07 07 31.1 49.316 N 158.396 E 33 N 5.2 4.3 0.8 206 EAST OF KURIL ISLANDS. Mw 5.2 (HRV). Felt (II) at .Severo-

Kurilsk.Centroid, Moment Tensor (HRV): Centroid origin time 07:07:34.8; Lat 49.80 N; Lon 159.24 E; Dep 18.4; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm): (T* Val=7.18. Plg=30, Azm=301; (N) Val=1.00. Plg=31, Azm=l=0; (P) Val=-8.18, Plg=43, Azm=64; Best double couple: Mo=7.7*10**16 Nm; NP1: Strike=83, Dip=33. Slip=-14; NF2: Strike=185, Dip=83, Slip=-122.

09 07 50 15.7& 39.612 N 29.708 E 6 7 TURKEY. <ISK>. MD 2.8 (ISK).09 07 53 48.9& 39.507 N 29.643 E 10 G 5 TURKEY. <ISK>. MD 2.7 (ISK).09 09 07 21.5& 39.251 N 27.905 E 8 4 TURKEY. <ISK>. MD 2.8 (ISK).09 09 21 39.3* 7.434 S 156.007 E 33 N 4.43.9 0.8 15- SOLOMON ISLANDS09 09 40 28.7% 37.578 N 28.128 E 10 G 0.4 5 TURKEY. MD 3.4 (ISK).09 10 02 25.8& 39.103 N 27.903 E 5 4 TURKEY. <ISK>. MD 2.8 (ISK).09 10 51 31.9? 10.26 S 119.51 E 100 G 3.9 1.4 8 SUMBA REGION, INDONESIA09 11 22 09. 0& 44.375 N 7.269 E 8 6 NORTHERN ITALY. <GEN>. ML 1.6 (GEN).09 12 27 45.9 49.970 S 114.234 W 10 G 4.8 4.9 1.2 17 SOUTHERN EAST PACIFIC RISE. Mw 5.2 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 12:27:55.9; Lat 49.78 S; Lon 114.56 W; Dep 15.0 Fix; Eslf- duration 1.0 sec,- Principal axes (scale 10**16 Nm) : (7 Val=8.34, Plg=13, Azm=329; (N) Val=-1.68, ?lg=77, A=-=132; (P) Val=-6.66, Plg=4, Azm=238; Best double couple: Mo=7.5*10**16 Nm; NPl: Strike=13, Dip=79, Slip=174; NF2: Strike=104, Dip=84, Slip=ll.

09 12 42 08.4* 54.063 S 6.841 E 10 G 4.7 1.0 20 BOUVET ISLAND REGION09 13 29 05.7* 36.058 S 71.198 W 101 * 1.0 21 CENTRAL CHILE. MD 4.3 (GUC). Felt (III) at Retiro and San

Javier; (II) at Constitucion, Linares, San Clemente and Talca.

09 13 58 02.3 40.549 N 20.772 E 10 G 1.1 7 GREECE-ALBANIA BORDER REGION. MD 3.2 (ATH).09 14 27 39.4& 57.375 N 155.790 W 73 7 ALASKA PENINSULA. <AEIO.09 15 04 11.5 35.193 N 33.419 E 33 N 0.5 6 CYPRUS REGION. ML 3.0 (CSS).09 15 21 53.2 25.147 N 95.123 E 122 * 4.2 0.8 18 MYANMAR-INDIA BORDER REGION09 15 34 51.8& 39.600 N 20.840 E 5 8 GREECE-ALBANIA BORDER REGION. <ATH>. MD 3.1 (ATH).09 16 57 40.6? 20.58 S 177.99 W 600 G 4.3 1.4 22 FIJI ISLANDS REGION09 17 05 30.6* 2.453 N 95.064 W 10 G 4.3 0.9 18 GALAPAGOS ISLANDS REGION09 17 21 50.8& 36.130 N 2.610 W 16 7 STRAIT OF GIBRALTAR. <XDD>. mbLg 2.4 (HDD).09 18 15 32.5& 17.801 N 101.413 W 16 13 NEAR COAST OF GUERRERO, MEXICO. <UNM>. MD 4.0 (UNM).09 18 50 53.2& 36.250 N 2.720 W 3 19 STRAIT OF GIBRALTAR. <MDD>. mbLg 3.1 (MDD) .09 18 53 47.2* 27.557 N 142.263 E 33 N 4.1 0.9 12 BONIN ISLANDS REGION09 19 08 18.8 48.013 N 128.677 W 10 G 4.2 1.1 86 VANCOUVER ISLAND REGION09 20 00 37.5% 50.879 N 2.558 E 10 G 0.6 10 FRANCE. ML 2.4 (LDG).09 20 06 09.9 44.362 N 11.407 E 10 G 0.5 9 NORTHERN ITALY. ML 2.5 (LDG).09 20 29 22.2& 39.062 N 38.898 E 10 G 5 TURKEY. <ISK>. MD 3.7 (ISK).09 20 34 44. 0& 40.440 N 125.170 W 5~ 8 OFF COAST OF NORTHERN CALIFORNIA. <GM-P>. ML 3.3 (GM) , 3-3

(BRK).09 21 17 33.7% 46.243 N 7.113 E 10 G 0.7 8 SWITZERLAND. ML 2.1 (LDG).09 21 33 09.3& 33.951 S 70.670 W 83 12 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.2 (GUC).09 21 57 52.3& 42.970 N 0.710 W 10 G 5 PYRENEES. <STR>. ML 2.2 (STR), 1.8 (LDG).09 22 20 46.7 40.346 N 20.484 E 10 G 1.2 16 GREECE-ALBANIA BORDER REGION. MD 3.3 (ATH), 3.0 (PDG).09 23 14 47.1& 62.007 N 150.583 W 46 51 CENTRAL ALASKA. <AEIC>. ML 2.7 (AEIC), 2.8 (PMR).09 23 23 09.0? 17.87 S 178.66 W 622 ? 4.4 0.9 20 FIJI ISLANDS REGION09 23 25 01.1 22.753 S 66.185 W 250 5.3 0.8 263 JUJUY PROVINCE, ARGENTINA. Mw 5.4 (GS), 5.4 (HRV).

Moment Tensor (GS): Dep 248; Principal axes (scale i:*"l~ Nm) : (T) Val=1.20, Plg=67, Azm=32; (N) Val = 0.13, Pig=ll, Azm=146; (P) Val=-1.32, Plg=21, Azm=240; Best double couple: Mo=1.3*10**17 Nm; NPl: Strike=34S, Dip=26, Slip=114; NP2: Strike=142, Dip=67, Slip=75.

Centroid, Moment Tensor (HRV): Centroid origin time 23:25:07.1; Lat 22.21 S; Lon 66.43 W; Dep 275.9; Half- duration 1.2 sec; Principal axes (scale 1C**17 Nm;: 'r Val=1.58, Plg=52, Azs:=102 ; (N) Val = -0.22, ?lg=34, Az.T.= :i4; (P) Val = -1.36, Flg=16, Azm=2-13; Best double couple: Mo=1.5*10**17 NT.; NPl: Strike=265, Dip=42, Slip=33; NPl: Strike=149, Dip=69, Slip=127.

10 00 34-07.9* 14.359 S 167.090 E 151 * 5.0 1.3 70 VANUATU ISLANDS10 01 06 41.8 6.582 S- 106.143 E 109 5.2 0.9 97 JAWA, INDONESIA. Xw 5.2 (HRV). Felt (III) at Jakarta.

Centroid, Moment Tenser (HRV): Centroid origin time

JUN 1999 PAGE 10

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01:06:43.3; Lat 7.08 S; Lon 106.12 E; Dep 109.0; Half- duration 1.0 sec,- Principal axes (scale 10**16 Nm) : (T) Val=6.49, Plg=83. Azm=97~- (N) Val=2.81, Plg=4, Azm=224 ; Val=-9.30, Plg=5, Azm=315; Best double couple: Mo=7.9*10**16 Nm; KPl: Scrike=49, Dip=40, Slip=96; NP2: Strike=221, Dip=5C, Slip=S5.

PYRENEES. <STR>. Ml 2.2 (STR).FRANCE. <LDG>. ML 1.4 (LDG).FRANCE. <LDG>. ML 2.1 (LDG).UNIMAK ISLAND REGION. <AEICMAURITIUS-REUNION REGIONCOLOMBIA. ML 4.8 (RSNC).ALASKA PENINSULA. <AEIC>.MINDANAO, PHILIPPINE ISLANDSTONGA ISLANDSTAIWAN. Felt (III JMA) at Hua-lien. central Taiwan.

CENTRAL CALIFORNIA. <GM-P>. MD 2.9 (GM). ML 2.9 (PAS).SOUTH OF FIJI ISLANDSNORTHWESTERN BALKAN REGION. <PDG>. MD 2.1 (PDG).GREENLAND SEASOUTHERN GREECE. <ATH>. MD 3.0 (ATH).SOUTHERN GREECE. <ATH>. MD 3 . 0 (ATH).ALBANIA. <PDG>.SOUTHERN ALASKAALASKA PENINSULATURKEY. <ISK>. MD 3.2 (ISK).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 4.1 (GUC). Felt (II) at Petorca, Santiago, Valparaiso and Vina del Mar, Chile.

NORTHERN ITALY. <GEN>. ML 2.3 (LDG), 2.1 (GEN), 1.9 (STR).TURKEY. <ISK>. MD 3.3 (ISK).LOYALTY ISLANDS REGIONSTRAIT OF GIBRALTAR. <MDD>.CYPRUS REGION. <ISK>. MD 3.2 (ISK). ML 2.7 (CSS).GREENLAND SEACENTRAL ALASKA. <AEIC>. ML 3.0 (AEIC), 3.3 (PMR) .CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.5 (GUC).NEAR COAST OF GUERRERO, MEXICO. <UNM>. MD 4.0 (UNM).TURKEY. <ISK>. MD 2.8 (ISK).ALBANIA. <SKO>. MD 3.3 (ATH), 3.2 (PDG). Felt (IV) in the Kicevo region, former Yugoslav Republic of Macedonia.

OFF E. COAST OF N. ISLAND, N.Z. <WEL>. ML 4.1 (WEL).GREECE. <ATH>. MD 3.2 (ATH).CARLSBERG RIDGEHAWAII. <HVO-P>. MD 4.4 (HVO). Estates, Hilo and Glenwocd.

NEAR COAST OF GUERRERO. MEXICOGREENLAND SEAAUSTRIA. ML 2.0 (VIE).GREENLAND SEATURKEY. <ISK>. MD 2.8 (ISK).NEAR EAST COAST OF KAMCHATKAAFGHANISTAN-TAJIKISTAN BORD REG. Mw 5.2 (GS) , 5.2 (HRV).Moment Tensor (GS): Dep 107; Principal axes (scale 10**16 Nm) : (T) Val=7.53. Plg=81. Azm=288; (N) Val=-0.14, Plg=6, Azm=58; (P) Val=-7.39, Plg=7, Azm=149; Best double couple: Mo=7.5*10**16 Nm; NP1: Strike=246, Dip=38, Slip=100; NP2: Strike=54, Dip=52, Slip=82.

Centroid, Moment Tensor (ERV): Centroid origin time 15:07:23.2; Lat 36.13 N; Lon 71.34 E; Dep 130.2; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm): (T) Val=7.88, Plg=80, Azm=20C; (N) Val=0.93, Plg=7, Azm=65; (P) Val=-8.82, Plg=7, Azm=335; Best double couple: Mo=8.4*10**16 Nm; NP1: Strike=57, Dip=38, Slip=79; NP2: Strike=251, Dip=52. Slip=99.

OFF COAST OF WASHINGTON. First and larger of two events about one minute apart.

OFF COAST OF WASHINGTONTURKEY. <ISK>. MD 2.6 (ISK).FRANCE. <LDG>- ML 3.3 (LDG), 3.1 (STR).TURKEY. <ISK>. MD 2.8 (ISK).OFF COAST OF WASHINGTONJAWA, INDONESIA. Mw 4.9 (KRV). Felt (III) at Malang.Centroid, Moment Tensor (HRV): Centroid origin time 16:58:12.7; Lat 8.69 S; Lon 111.76 E; Dep 59.8; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm): (T) Val=2.23, Plg=78, Azm=122; (N) Val=-0.07, Plg=ll, Azm=274; (P) Val = -2.17, Plg = 6, Azr.= 5; Best double couple: Mo=2.2*10**16 Nm; NPl: Srrike=107, Dip=40, Slip=107; N?2: Strike=265, Dip=52, Slip=76.

SPAIN. <MDD>. mbLg 2.0 (MDD).PAKISTANWINDWARD ISLANDS. <TRN>. XD 2.8 (TRN).GUERRERO, MEXICO. <UNM>. XD 3 . 9 (UNM).NEAR COAST OF CENTRAL CHI1E. <GUC>. MD 2.7 (GUC).SUNDA STRAITGREECE-ALBANIA BORDER REGION. <ATH>. MD 3.3CENTRAL CALIFORNIA. <GM-F>. KL i.i (GM). ML at Salinas.

GREECE. <ATH>. ML 3.2 (ATK). .GREECE. <ATH>. MD 3.1 (ATH).GREECE-ALBANIA BORDER REGION. <ATH>. MD 2.9 (ATH).

Felt at Hawaiian Ocean View

<UNM>. MD 3.8 (UNM)

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GREECE-ALBANIA BORDER REGION. WINDWARD ISLANDS. <FDF>. MG 2 SOUTHERN IRANGREECE-ALBANIA BORDER REGION. NEAR COAST OF NICARAGUA. <CAS( SOUTH OF HONSHU, JAPAN

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TURKEY.TURKEYTURKEY.TURKEY.TURKEY.TURKEY.TURKEY.CHILE-ARGENTINA BORDER REGION. <GUC>.SOUTHERN GREECE. <ATH>. Mw 5.2 (HRV). MD 4.8 (ATH). Felt strongly at Pyrgos and Zakynthos. Felt in Achaea and Ilia Provinces. Also felt in many other parts of southwestern Greece.

Centroid, Moment Tensor (HRV): Centroid origin time 07:50:19.9; Lat 37.30 N; Lon 21.17 E; Dep 59.0; Half- duration 1.2 sec; Principal axes (scale 10**16 Nm) : (T) Val=7.87, Plg=4, Azm=259; (N) Val=1.09, Plg=82, Azm=l<; (P) Val=-8.96, Plg=7, Azm=169; Best double couple: Mo=8.4*10**16 Nm; NP1: Strike=304, Dip=82, Slip=-177; NP2: Stri'ke=214, Dip=87, Slip=-8.

NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.3 (GUC).TURKEY. <ISK>. MD 2.7 (ISK).ROMANIATURKEY. <ISK>.. MD 2.9 (ISK).TURKEY. <ISK>. MD 3.1 (ISK).NORTH ATLANTIC OCEANSAN JUAN PROVINCE, ARGENTINA. <GUC>. MD 2.6 (GUC).SOUTHERN ALASKA. <AEIC>. ML 2.6 (AEIC).TURKEY. <ISK>. MD 2.8 (ISK).POLAND. ML 3.4 (VIE), 2.7 (CLL).TURKEY. <ISK>. MD 2.6 (ISK).PYRENEES. <MDD>. ML 3.7 (LOG) Felt (IV) at Aspet, France.

OFF COAST OF CHIAPAS, MEXICO. MD 4.4 (UNM).TURKEY. <ISK>. MD 2.8 (ISK).CHILE-ARGENTINA BORDER REGION. <GUC>.TURKEY. <ISK>. MD 2.8 (ISK).BANDA SEASTRAIT OF GIBRALTAR. <MDD>. mbLg 2.6 (MOD).TURKEY. <ISK>. MDTURKEY. <ISK>. MDSPAIN. <MDD>. mbLg 2.2WESTERN IDAHO. <BSE-P>. ML 3.2 (BSE), 3.2 (BUT).GREECE. <ATH>. ML 3.0 (ATH).AFGHANISTAN-TAJIKISTAN BORD REG.NEW BRITAIN REGION, P.N.G.CENTRAL CHILE. <GUC>. MD 3.0 (GUC).CENTRAL ITALY. ML 3.0 (LOG).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.9 (GUC).SAN JUAN PROVINCE, ARGENTINA. MD 3.9 (GUC).NEAR EAST COAST OF HONSHU, JAPAN. Felt (II JMA) in eastern Fukushima, northeastern Miyagi, eastern Yamagata and parts of Ibaraki Prefectures. Felt from Chiba to Iwate Prefectures.

AEGEAN SEA. <ATH>. MD 2.9 (ATH).NORTH OF SEVERNAYA ZEMLYANORTH OF SEVERNAYA ZEMLYA. Mw 5.0 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 23:54:51.4; Lat 85.60 N Fix; Lon 83.70 E Fix,- Dep IE-0 Fix; Half-duration 1.0 sec; Principal axes (scale 10**16 2to) : (T) Val=2.99, Plg=7, Azm=196; (N) Val=1.21, Plg=24, Azm=289; (P) Val=-4.19, Plg=64, Azm=90; Best double rouple: Mo=3.6*10**16 Nm; NP1: Strike=261, Dip=43, Slip=-127 - NP2: Strike=126, Dip=57, Slip=-61.SOUTH ISLAND, NEW ZEALAND. <WEL>. ML 3.2 (WEL).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.8 (GUC).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.1 (GUC).SOUTHERN IRANMARIANA ISLANDSCYPRUS REGION. <CSS>. ML 2.5 (CSS).OFF COAST OF CENTRAL AMERICA. <CASC>. MD 4.0 (CASC).OFF COAST OF CENTRAL AMERICA. <CASC>. MD 4.1 (CASC).GREECE. <ATH>. ML 3.7 (ATH).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.6 (GUC).CENTRAL MEDITERRANEAN SEA. <ATH>. MD 3.9 (ATH).FRANCE. <LDG>. ML 2.0 (LOG).NORTH OF SEVERNAYA ZEMLYANEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC).ROMANIA'SOUTHERN GREECE. <ATH>. MD 2.8 (ATH).

3.6 2.8

<MDD>. mbLg 2.6 (ISK). (ISK). (HDD).

(BSE),

JUN 1999 PAGE 12

1212

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TURKEY. <ISK>. MD 2.7 (ISK).SOUTHWEST OF SUMATERA, INDONESIA. Mw 5.2 (HRV) .Centroid, Moment Tensor (HRV): Centroid origin time 08:18:53.6; Lat 6.55 S; Lon 101.63 E; Dep 18.4; Half- duration 1.1 sec; Principal axes (scale 10**16 Nm) : (T) Val=5.70, Plg=48, Azm=90; (N) Val=1.72, Plg=26, Azm=326; (P) Val=-7.42, Plg=29, Azm=219; Best double couple: Mo=6.6*10**16 Nm; NP1: Strike=261, Dip=29, Slip=22; NP2: Strike=151, Dip=80, Slip=117.

TURKEY. <ISK>. MD 2.7 (ISK).TURKEY. <ISK>. MD 2.9 (ISK).KURIL ISLANDSCENTRAL MEXICO. <UNM>. MD 3.4 (UNM).LEEWARD ISLANDS. <FDF>. MG 2.6 (FDF).FRANCE. <LDG>. ML 1.9 (LDG).CENTRAL EAST PACIFIC RISETURKEY. <ISK>. MD 3.0 (ISK).AEGEAN SEA. <ISK>. MD 3.0 (ISK).TURKEY. <ISK>. MD 2.8 (ISK).NORTHWESTERN BALKAN REGION. ML 1.2 (LJU).TURKEY. <ISK>. MD 2.8 (ISK).ANDREANOF ISLANDS, ALEUTIAN IS.CENTRAL MEXICO. <UNM>. MD 3.2 (UNM).SOUTHWEST INDIAN RIDGECOOK STRAIT, NEW ZEALAND. <WEL>.LEYTE, PHILIPPINE ISLANDSAEGEAN SEA. <ISK>. MD 3.5 (ISK).CENTRAL CHILE. <GUC>. MD 2.9 (GUC).BANDA SEACENTRAL MEDITERRANEAN SEA. <ATH>. ML 3 . 8 (ATH) .TURKEY. <ISK>. MD 2.4 (ISK).SOUTHERN ALASKA. <AEIC>.SOUTHERN CALIFORNIA. <PAS-P>. ML 3.1 (PAS).CATAMARCA PROVINCE, ARGENTINANORTH ISLAND, NEW ZEALAND. <WEL>.CHILE-ARGENTINA BORDER REGION. MD 3.6 (GUC).TURKEY. <ISK>. MD 2.5 (ISK).TURKEY. <ISK>. MD 2.8 (ISK).DODECANESE ISLANDS. <ATH>. ML 4.4 (ATH). Felt on Thira.DODECANESE ISLANDS. <ATH>. MD 3.8 (ATH).DODECANESE ISLANDS. <ATH>. ML 3 .7 (ATH).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.2 (GUC).LEEWARD ISLANDS. <FDF>. MG 2.2 (FDF).MONTANA. <BUT-P>. ML 3.1 (BUT). Felt.GUERRERO, MEXICO. <UNM>. MD 4.1 (UNM).LUZON, PHILIPPINE ISLANDSCHILE-BOLIVIA BORDER REGIONLOYALTY ISLANDS REGIONNORTHERN ITALY. <GEN>. ML 2.2 (GEN), 2.0 (LDG), 1.9 (STR).NEAR COAST OF NICARAGUANORTH ISLAND, NEW ZEALAND. <WEL>.HOKKAIDO, JAPAN REGION. Felt (II JMA) in the Kushiro area.LUZON, PHILIPPINE ISLANDSAEGEAN SEA. <ATH>. MD 3.1 (ATH).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.3 (GUC).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.2 (GUC).TURKEY. MD 2.7 (ISK).IONIAN SEA. MD 3.6 (ATH).POLAND. ML 3.1 (VIE).EGYPTFRANCE. <LDG>. ML 1.8 (LDG).COOK STRAIT, NEW ZEALAND. <WEL>.CHILE-ARGENTINA BORDER REGION. <GUC>.CENTRAL CALIFORNIA. <PAS-P>. ML 3.6 (PAS). Felt at Havilah.KODIAK ISLAND REGION. <AEIC>. ML 3.5 (AEIC), 3.6 (PMR).TURKEY. <ISK>. MD 3.2 (ISK).GREECE. <ATH>. ML 3.7 (ATH).SOUTH ISLAND, NEW ZEALAND. <WEL>.CHILE-ARGENTINA BORDER REGION. <GUC>.XIZANGTURKEY. MD 2.6 (ISK).FRANCE. <GEN>. ML 1.6 (GEN).TURKEY. <ISK>. MD 2.8 (ISK).NEAR COAST OF NORTHERN CHILE. Felt (V) at Copiapo and (II) at Chanaral, El Salvador, Freirina, Huasco and Vallenar.SOUTHERN ALASKA. <AEIC>. ML 2.8 (AEIC).XIZANGSOUTHWESTERN RYUKYU ISLANDSGREECE. <ATH>. MD 4.1 (PDG), 4.0 (ATH).MENDCZA PROVINCE, ARGENTINA. <GUC>. MD 3.4 (GUC).LEEWARD ISLANDS. <FDF>. MG 2.5 (FDF).FIJI ISLANDS REGIONLAKE BAYKAL REGION, RUSSIA. Felt (VI) at Verkhnyaya Zaimka, (V) at Kichera, (IV) at Severobaykalsk and (III) at Ni zhneangarsk.AEGEAN SEA. <ATH>. MD 3.6 (ATH).NEW BRITAIN REGION, P.N.G. Mw 5.2 (HRV).Centroid, Moment Tensor (HRV) : Cer.troid origin time 12:17:43.0; Lat 5.21 S; Lon 152.76 E; Dep 49.0; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm) : (T) Val=6.36, Plg=58, Azm=341; (N) Val=-0.13, Plg=3, Azm=245; (P) Val=-6.23, Plg=31, Azm=153; Best double couple: Mo=6.3*10**16 Nm; NP1: Strike=232, Dip=14, Slip=76; NP2:

JTJSI 1999

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Strike=66, Dip=76, Slip=93. VOLCANO ISLANDS REGION NORTHERN INDIA NORTHERN ALASKA CENTRAL ALASKA. <AEIC>.CENTRAL CALIFORNIA. <GM-P>. MD 2 . 5 (GM) . ML 2.9 (PAS) - KENAI PENINSULA, ALASKA. <AEIC>. ML 2 .5 (AEIC) . LEEWARD ISLANDS. <FDF>. MG 1.7 (FDF). CENTRAL CALIFORNIA. <GM-P>. ML 3.2 (GM), 3.2 (PAS). PYRENEES. ML 2.6 (STR), 2.3 (LOG). SOUTHERN ALASKA. <AEIC>.PYRENEES. <STR>. ML 2.3 (STR). 1.8 (LOG). CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.3 (GUC). VANUATU ISLANDS NORTHERN ITALY. ML 2.8 (GRF), 2.8 (STR), 2.7 (FUR), 2.6(VIE), 2.6 (FBB), 2.6 (LOG).

DODECANESE ISLANDS. ML 4.2 (ATH), 4.0 (CSS). SPAIN. <MDD>. mbLg 1.9 (MOD).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.6 (GUC). PHILIPPINE ISLANDS REGION NORTH OF SVALBARD NEAR SOUTH COAST OF FRANCE. NORTHERN ITALY. <GEN>. ML 1 WESTERN HONSHU, JAPAN. Felt

<GEN>. ML 1.6 (GEN).6 (GEN).(II JMA) in western Fukui.

southeastern Hyogo and southern Kyoto Prefectures.NORTHERN ITALY. <STR>. ML 2.5 (GEN), 2.2 (STR), 2.2 (LDG) .NEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.1 (GUC).VANUATU ISLANDS REGIONJUJUY PROVINCE, ARGENTINASTRAIT OF GIBRALTAR. <MDD>.SOUTH OF FIJI ISLANDSFRANCE. <STR>. ML 2.3 (STR), 2.0 (LOG).TURKEY. <ISK>. MD 2.8 (ISK).CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.8 (GM) .TONGA ISLANDSSOUTH OF BALI, INDONESIANORTH ATLANTIC OCEAN. Mw 5.3 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 22:48:26.1; Lat 13.95 N; Lon 50.06 W; Dep 15.0 Fix; Half- duration 1.1 sec; Principal axes (scale 10**17 Nm): «T) Val=1.23, Plg=3, Azm=154; (N) Val=-0.40, Plg=76. Azm=255; (P) Val=-0.83, Plg=14, Azm=63; Best double couple: Mo=1.0*10**17 Nm; NP1: Strike=199, Dip=78, Slip=-172.- NP2: Strike=108, Dip=82, Slip=-12.SOUTHERN ALASKA. <AEIC>.MID-INDIAN RIDGESPAIN. <MDD>. mbLg 1.7 (HDD).COLOMBIA. <RSNC>. ML 2.3 (RSNC).NORTHERN ITALY. <LDG>. ML 3.0 (GEN), 2.4 (STR).CRETE. <ATH>. ML 3.6 (ATH).TURKEY. <ISK>. MD 3.2 (ISK).KYRGYZSTANMENDOZA PROVINCE, ARGENTINA. <GUC>. MD 3.5 (GUC).CERAM SEAVANUATU ISLANDSSPAIN. <MDD>. mbLg 1.8 (MOD).NORTHERN ITALY. <GEN>. ML 1.6 (GEN).OFF COAST OF CENTRAL CHILESOUTH OF HONSHU, JAPANSOUTH OF HONSHU, JAPANMID-INDIAN RIDGEPHILIPPINE ISLANDS REGIONNORTHERN ITALY. <GEN>. ML 1.8 (GEN).GULF OF ALASKA. ML 2.9 (AEIC).VANUATU ISLANDS REGIONAEGEAN SEA. <ISK>. MD 3.0 (ISK).TURKEY. <ISK>. MD 2.8 (ISK).CYPRUS REGION. <CSS>. ML 3.3FIJI ISLANDS REGIONTURKEY. <ISK>. MD 2.7 (ISK).TURKEY. <ISK>. MD 2.9 (ISK).TURKEY. <ISK>. MD 2.5 (ISK).TURKEY. <ISK>. MD 2.6 (ISK).NEAR COAST OF CENTRAL CHILE.TURKEY. <ISK>. MD 2.6 (ISK).HOKKAIDO, JAPAN REGION. FeltSOUTHWESTERN RYUKYU ISLANDSKODIAK ISLAND REGION. <AEIC>.NEAR COAST OF NORTHERN CHILENORTH ATLANTIC OCEAN. <TRN>. MD 3.3 (TRN).CENTRAL ALASKA. <AEIC>.NEAR COAST OF OAXACA, MEXICO. <UNM>. MD 4.2 (UNK) .MINAHASSA PENINSULA, SULAWESIVOLCANO ISLANDS REGIONTURKEY. <ISK>. MD 2.7 (ISK).NEAR COAST OF GUATEMALASPAIN. ML 2.6 (LOG).TURKEY. <ISK>. MD 2.7 (ISK).CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 3.1 (GM) .WINDWARD ISLANDS. <TRN>. MD 3.0 (TRN).NORTHERN ITALY. <GEN>. ML 1.4 (GEN).FRANCE. <STR>. ML 1.9 (STR), 1.9 (LOG).CENTRAL ALASKA. <AEIC>. ML 3.1 (AEIC), 3.4 (PMR). Felr at

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15 11 19 28.3? 43.26 N 2.76 W 10 G 1.5 615 11 22 13.34 63.180 N 150.524 W 127 3715 12 17 15.7& 53.793 N 164.082 W 19 1415 12 30 05.74 34.314 S 70.116 W 16 715 12 33 06.7 31.575 N 141.765 E 33 N 4.9 4.8 1.0 77

ML 3.3 (GM). ML 3.5 (GM). at Albox.

MD 4.5 (GUC). .8 (GEN).

Kantishna.NORTHERN CALIFORNIA. <GM-P>. MD 2.9 (GM).SPAIN. mbLg 3.7 (MOD). Felt (IV) at Albox and Cantoria; (III) at Albanchez, Arboleas, Chirivel, Lijar, Macael, Olula del Rio, Partaloa, Purchena, Tijola and Zurgena; (II) at Huercal-Overa, Lubrin, Oria, Seron and Vera.

FRANCE. <LDG>. ML 2.2 (STR), 1.8 (LDG).CALIFORNIA-ICEVADA BORDER REGION. <GM-P>.CALIFORNIA-NEVADA BORDER REGION. <GM-P>.SPAIN. <MDD>. mbLg 2.5 (HDD). Felt (III)SPAIN. mbLg 2.5 (HDD).CALIFORNIA-NEVADA BORDER REGION. <GM-P>. ML 3.7 (GM), 3.7 (BRK). Double event. Second event about 23 seconds after onset.

NEAR COAST OF PERUKERMADEC ISLANDS REGIONCALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.9 (GM).AUSTRIA. ML 2.7 (GRF), 2.6 (LDG), 2.6 (STR), 2.4 (VIE), 2.2 (FUR).

KODIAK ISLAND REGION. ML 5.1 (PMR), 4.7 (AEIC). Felt (IV) at Kodiak.

TAIWAN REGIONOFF COAST OF CENTRAL CHILE.NORTHERN ITALY. <GEN>. ML 1.SOUTHERN IRANSOUTHERN ALASKA. <AEIC>.KERMADEC ISLANDS REGIONNORTH ATLANTIC OCEANOFF COAST OF CHIAPAS, MEXICO. MD 4.1 (UNM).NORTH ATLANTIC OCEAND'ENTRECASTEAUX ISLANDS REGIONTURKEY. <ISK>. MD 2.8 (ISK).NORTH ATLANTIC OCEANSOUTHERN CALIFORNIA. <PAS-P>. ML 3.1 (PAS).D'ENTRECASTEAUX ISLANDS REGIONTURKEY. <1SK>. MD 2.9 (ISK).CALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.9 (GM).TURKEY. <ISK>. MD 3.1 (ISK).SOUTH OF JAWA, INDONESIANEAR COAST OF VENEZUELA. <TRN>. MD 2.8 ' (TRN) .OFF COAST OF CENTRAL CHILE. <GUC>.NORTHERN ITALY. <GEN>. ML 1.5 (GEN).TURKEY. <ISK>. MD 2.6 (ISK).KURIL ISLANDS. Mw 5.2 (HRV). Felt (III) at Yuzhno-Kurilsk, Kunashir. Also felt in eastern Hokkaido.

Centroid, Moment Tensor (HRV): Centroid origin time 07:47:28.9; Lat 42.44 N; Lon 146.41 E; Dep 65.7; Half- duration 1.2 sec,- Principal axes (scale 10**16 Nm) : (T) Val=8.40, Plg=36, Azm=9; (N) Val=-1.15, Plg=48, Azm=226; (P) Val=-7.25, Plg=19, Azm=114; Best double couple: Mo=7.8*10**16 Nm; NP1: Strike=158, Dip=50, Slip=15; NP2: Strike=58, Dip=79, Slip=139.

NORTHERN CALIFORNIA. Mw 3.8 (BRK). ML 3.8 (GS). Felt at Graeagle, Portola and in the Frenchman Lake area. Also felt at Reno, Nevada.

Moment Tensor (BRK): Dep 14; Principal axes (scale 10**14 Nm) : (T) Val=5.67, Plg=8, Azm=93; (N) Val=0.00, Plg=12, Azm=l; (P) Val=-5.67. Plg=76, Azm=215; Best double couple: Mo=5.7*10**14 Nm; NP1: Strike=352, Dip=54, Slip=-105; NP2: Strike=197, Dip=39, Slip=-70.

TURKEY. <ISK>. MD 3.0 (ISK).NORTHERN CALIFORNIA. ML 3.7 (GS). Felt at Graeagle, Portola and in the Frenchman Lake area. Also felt at Reno, Nevada.

NEW IRELAND REGION, P.N.G.SOUTHERN MOLUCCA SEAWINDWARD ISLANDS. <FDF>. MG 2.3 (FDF).HOKKAIDO, JAPAN REGION. Felt (III JMA) in the Kushiro area.POLAND. MG 2.8 (WAR).NEAR EAST COAST OF KAMCHATKATURKEY. <ISK>. MD 2.9 (ISK).D'ENTRECASTEAUX ISLANDS REGIONSTRAIT OF GIBRALTAR. <MDD>.SERAM, INDONESIACHILE-ARGENTINA BORDER REGION.CHILE-ARGENTINA BORDER REGION.PHILIPPINE ISLANDS REGIONNEAR EAST COAST OF HONSHU, JAPANAUSTRIA. ML 2.3 (VIE).TONGA ISLANDS. Mw 5.2 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 11:17:49.6; Lat 16.58 S; Lon 172.33 W; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm) : (T) Val=7.28, Plg=26, Azm=291; (N) Val=-1.46, Plg=24, Azm=34; (P) Val=-5.82, Plg=53, Azm=161; Best double couple: Mo=6.6*10**16 Nm; NP1: Strike=339, Dip=29, Slip=-148; NP2: Strike=220, Dip=75, Slip=-65.

SPAIN. ML 2.8 (STR). mbLg 2.3 (MOD).CENTRAL ALASKA. <AEIC>.UNIMAK ISLAND REGION. <AEIC>. ML 3.0 (AEIC).CHILE-ARGENTINA BORDER REGION. <GUC>.SOUTH OF HONSHU, JAPAN. Mw 5.2 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 12:33:09.4; Lat 31.83 N; Lon 141.58 E; Dep 24.9; Half-

MD 4.8 (GUC). <GUC>. MD 3.7 (GUC).

JUN 199=

duration 1.0 sec; Principal axes (scale 10**16 Nm) .- (T) Val=7.57, Plg=59, Azm=294; (N) Val=-1.43, Plg=17, Azm=172; (P) Val=-6.15, Plg=25, Azm=74; Best double couple: Mo=6.9*10**16 Nm; NP1: Strike=131, Dip=25, Slip=45; NF2: Strike=359, Dip=72, Slip=108.

15 13 44 09.4* 28.949 N 139.448 E 475 * 4.1 0.9 15 BONIN ISLANDS REGION15 13 48 29.9& 31.066 S 71.507 W 26 15 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.9 (GUC) .15 14 02 20. 8& 34.275 S 70.095 W 4 10 CHILE-ARGENTINA BORDER REGION. <GUC>.15 14 18 06.3& 42.700 N 0.500 E 2' 7 PYRENEES. <LDG>. ML 2.3 (LOG), 2.2 (STR).15 14 37 23.2& 34.283 S 70.149 W 5 14 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.8 (GUC).15 14 50 19.3* 46.462 N 153.218 E 33 N 4.7 1.1 9 KURIL ISLANDS15 15 06 12.7& 40.059 N 27.760 E 10 G 7 TURKEY. <ISK>. MD 2.9 (ISK).15 15 09 08.3& 40.753 N 29.265 E 5 4 TURKEY. <ISK>. MD 2.5 (ISK).15 15 17 59. 8& 34.718 S 71.180 W 64 9 NEAR COAST OF CENTRAL CHILE. <GUC>.15 15 27 44.6? 24.40 S 179.74 W 516 ? 4.4 1.1 15 SOUTH OF FIJI ISLANDS15 15 56 41.4? 3.59 S 101.77 E 33N4.1 0.9 7 SOUTHERN SUMATERA, INDONESIA15 16 06 32.2% 32.453 N 95.973 E 33 N 1.0 8 XIZANG15 16 07 05.4& 39.192 N 27.889 E 10 G 7 TURKEY. <ISK>. MD 3.0 (ISK).15 16 13 26.3& 59.940 N 152.556 W 81 69 SOUTHERN ALASKA. <AEIC>.15 16 35 30.4? 9.48 S 155.54 E 33 N 4.0 L.2 7 D'ENTRECASTEAUX ISLANDS REGION15 16 36 41.2? 14.55 S 71.38 W 96 ? 3.7 0.6 5 CENTRAL PERU15 17 10 10.8& 43.000 N 0.200 W 2 9 PYRENEES. <LDG>. ML 2.3 (LOG), 2.3 (STR).15 17 15 50.3 9.689 S 155.627 E 33 N 4.9 4.8 0.9 25 D' ENTRECASTEAUX ISLANDS REGION. Mw 5.2 (HRV) .

Centroid, Moment Tensor (HRV): Centroid origin time 17:15:52.2; Lat 9.65 S; Lon 155.77 E; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm) : (T) Val=6.76, Plg=2, Azm=170; (N) Val=1.55, Plg=ll, Azm=26C; (P) Val=-8.31, Plg=79, Azm=68; Best double couple: Mo=7.5*10**16 Nm; NP1: Strike=248, Dip=44, Slip=-106; NP2: Strike=90, Dip=48, Slip=-75.

15 18 34 51.5& 17.411 N 62.367 W 150 4 LEEWARD ISLANDS. <FDF>. MG 3.3 (FDF).15 18 45 27. 5& 43.831 N 7.867 E 8 19 NEAR SOUTH COAST OF FRANCE. <GEN>. ML 2.3 (GEN), 2.0 (LOG).

1.9 (STR).15 18 58 43-7* 31.052 S 178.618 W 293 ? 4.4 1.1 28 KERMADEC ISLANDS REGION15 19 27 14.8* 32.808 S 68.292 W 33 N 0.7 14 MENDOZA PROVINCE, ARGENTINA. MD 3.8 (GUC).15 19 42 46.1 9.525 S 155.423 E 33 N 4.6 3.8 1.0 21 D'ENTRECASTEAUX ISLANDS REGION15 20 31 13.1 39.408 N 28.017 E 10 G 0.6 14 TURKEY. MD 3.6 (ATH) , 3.2 (ISK).15 20 36 56.7& 39.373 N 27.961 E 5. .4 TURKEY. <ISK>. MD 2.6 (ISK).15 20 42 05.9 18.386 N 97.436 W 70 G 6.4 6.5 1.1 516 CENTRAL MEXICO. Mw 7.0 (HRV), 6.9 (GS). Me 6.7 (GS).

Fourteen people killed, about 200 injured and considerable damage (VIII) to thousands of buildings and several bridges in Puebla,- one person killed by a landslide, dozens injured and damage to buildings and bridges in Veracruz; one person killed, dozens injured, many buildings and roads damaged in Oaxaca; one person killed and some buildings damaged in Morelos; one person died of a heart attack and some buildings damaged in Guerrero,- two people died of heart attacks and minor damage to buildings in the Distritc Federal. Dozens injured and damage in the states of Mexico and Tlaxcala; two people injured in Hidalgo. A railroad was damaged between Calco and Mixquic. Felt in much of central and southern Mexico from Aguascalientes to Chiapas. Broadband Source Parameters (GS) : Dep 63,- NP1: Strike=300, Dip=40, Slip=-105; NP2: Strike=139, Dip=52, Slip=-78; Radiated energy 2.2*10**14 Nm. Complex earthquake, with at least one event occurring about 3 seconds after the onset. Depth based on second event.

Moment Tensor (GS): Dep 67; Principal axes (scale 10**19 Nm): (T) Val=2.55. Plg=4, Azm=214; (N) Val=0.01. Plg=4. Azm=124; (P) Val=-2.56, Plg=84, Azm=344; Best double couple: Mo=2.6*10**19 Nm; NP1: Strike=309, Dip=42, Slip=-83; NP2: Strike=120, Dip=49, Slip=-96.

Centroid, Moment Tensor (HRV): Centroid origin time 20:42:13.0; Lat 18.44 N; Lon 97.38 W; Dep 61.2; Half- duration 7.5 sec; Principal axes (scale 10**19 Nm) : (T) Val=3.01, Plg=6, Azm=214; (N) Val=0.18. Plg=4, Azm=123; (?) Val=-3.18, Plg=83, Azm=354; Best double couple: Mo=3.1*10**19 Nm; NP1: Strike=309, Dip=40, Slip=-83; KP2: Strike=119, Dip=51, Slip=-96.

Scalar Moment (PPT): Mo=4.0*10**19 Nm.1515151515151515151516161616161616161616161616

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JUN 1999 PAGE 16

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SOUTHERN ALASKA. <AEIC>.TURKEY. <ISK>. MD 3.5 (ISK).D'ENTRECASTEAUX ISLANDS REGIONHINDU RUSH REGION. AFGHANISTANNEAR S. COAST OF HONSHU, JAPANTURKEY. <ISK>. MD 3.4 (ISK).TONGA ISLANDSTURKEY.. <ISK>. MD 2.8 (ISK).POLAND. ML 3.8 (GRF), 3.7 (VIE).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.3 (GUC).TURKEY. <ISK>. MD 2.8 (ISK).TURKEY. <ISK>. MD 2.6 (ISK).TURKEY. <ISK>. MD 3.0 (ISK).D'ENTRECASTEAUX ISLANDS REGIONNORTHWEST TERRITORIES, CANADAIRIAN JAVA, INDONESIAMONTANA. <BUT-P>. ML 3.2 (BUT).CENTRAL MEXICO. <UNM>. MD 3.8 (UNM).SOUTHERN ALASKA. <AEIC>.PRINCE EDWARD ISLANDS REGIONTURKEY. MD 4.1 (ISK). Felt in the Cankiri and Kastamonu regions.

D'ENTRECASTEAUX ISLANDS REGIONLOYALTY ISLANDS REGIONSOUTHWEST INDIAN RIDGETURKEY. MD 3.0 (ISK).TURKEY. <ISK>. MD 2.5 (ISK).SOUTHWEST INDIAN RIDGEHEBGEN LAKE REGION. <SLC-P>. ML 3.5 (SLC), 3.9 (BUT).HEBGEN LAKE REGION. <SLC-P>. ML 3.1 (SLC), 3.8 (BUT).CENTRAL PERUMINDANAO. PHILIPPINE ISLANDSNEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.3 (GUC).TURKEY. <ISK>. MD 3.2 (ISK).KERMADEC ISLANDS, NEW ZEALANDCHILE-ARGENTINA BORDER REGION. <GUC>.TONGA ISLANDS. Mw 5.8 (GS), 5.8 (HRV).Moment Tensor (GS): Dep 70; Principal axes (scale 10**17 Nm) : (T) Val=6.21. Plg=25, Azm=254; (N) Val=0.05, Plg=14, Azm=158; (P) Val=-6.26, Plg=61, Azm=41; Best double couple: Mo=6.2*10**17 Nm; NP1: Strike=13, Dip=23, Slip=-52; NP2: Strike=153, Dip=72, Slip=-105.

Centroid, Moment Tensor (HRV): Centroid origin time 18:36:03.3; Lat 17.05 S; Lon 173.02 W; Dep 76.4; Half- duration 2.1 sec; Principal axes (scale 10**17 Nm) : (T) Val=5.3a, Plg=32, Azm=243; (N) Val=0.31, Plg=5, Azm=150; (P) Val=-5.70, Plg=57, Azm=51; Best double couple: MO=5.5*10**17 Nm; NP1: Strike=353, Dip=14, Slip=-67; NP2: Strike=149, Dip=77, Slip=-96.

CHILE-ARGENTINA BORDER REGION. <GUC>.WINDWARD ISLANDS. <FDF>. MG 2.6 (FDF).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.4 (GUC).CENTRAL MEXICO. <UNM>. MD 3.6 (UNM).SAMOA ISLANDS REGION. Mw 5.9 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 19:32:36.3; Lat 14.81 S; Lon 175.61 W; Dep 15.0 Fix; Half- duration 2.1 sec; Principal axes (scale 10**17 Nm) : (T) Val=7.36. Plg=6. Azm=337; (N) Val=-1.26. Plg=84, Azm=167; (P) Val=-6.10, Plg=l, Azm=67; Best double couple: Mo=6.7*10**17 Nm; NPl: Strike=112. Dip=85. Slip=3; NP2: Strike=22. Dip=87, Slip=175.

SOUTHWEST INDIAN RIDGECHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.4 (GUC).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.3 (GUC).CENTRAL MEXICO. <UNM>. MD 3-5 (UNM).PYRENEES. <STR>. ML 2.5 (STR). 2.2 (LOG).SOUTHWEST INDIAN RIDGERAT ISLANDS, ALEUTIAN ISLANDSCHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.2 (GUC).SOUTHERN ALASKA. <AEIC>. ML 2.7 (AEIC).TURKEY. <ISK>. MD 3.0 (ISK).POLAND. MG 2.7 (WAR).CHILE-ARGENTINA BORDER REGION. <GUC>.SOUTHWEST INDIAN RIDGEALASKA PENINSULA. <AEIC>.KURIL ISLANDSSOUTHERN CALIFORNIA. <PAS-P>. ML 3.1 (PAS).NEAR EAST COAST OF KAMCHATKASTRAIT OF GIBRALTAR. <MDD>. mbLg 2.1SOUTHERN CALIFORNIA. <PAS-P>. ML 3.2 Angeles area.SOUTHERN CALIFORNIA. <PAS-P>. ML 3.0 (PAS). Felt in the Los Angeles area.SOUTHWEST INDIAN RIDGENEAR N COAST OF NEW GUINEA, PNG.MARIANA ISLANDSD'ENTRECASTEAUX ISLANDS REGIOND'ENTRECASTEAUX ISLANDS REGIONUNITED KINGDOM. ML 3.0 (LOG). Felt at Cradley.GERMANY. <STR>. ML 2.1 (STR), 1.9 (FBB).WINDWARD ISLANDS. MD 3.6 (TRN:.KODIAK ISLAND REGION. <AEIC>. ML 2.7 (AEIC).PYRENEES. <LDG>. ML 2.3 (STR), 2.0 (LOG).

(MOD).(PAS). Felt in the Los

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Broadband Source Parameters (GS): Dep 35; NP1: Strike=268,Dip=62, Slip=140; NP2: Strike=20, Tip=55, Slip=35; Radiatedenergy 9.5*10**13 Nm.

Moment Tensor (GS): Dep 39; Principal axes (scale 10**18Nm) : (T) Val = 3.80, Plg = 53, Azm=234; (N) Val = -G.20, .Flg = 37,Azm=49; (P) Val=-3.59, Plg=2, Azm=141; Best double couple:Mo=3.7*10**18 Nm; NP1 : Strike = 263, Dip=54, Slip=13S; NP2:Strike=20, Dip=58, Slip=44.

Centroid, Moment Tensor (HRV): Centroid origin time

(VIE). 3.5 (BUT)

<GM-P>. MD 2.£ (GM). (AEIC).

Felt (II JMA) in

JUN 1999 PAGE 18

10:55:31.5; Lat 5.52 N; Lon 127.01 E; Dep 45.0 Bdy; Half- duration 4.1 sec,- Principal axes (scale 10**18 Nm) : (T) Val=4.36, Plg=38, Azm=226; (N) Val=1.53, Plg=52, Azm=45; (P) Val=-5.88, Plg=l, Azm=136; Best double couple: Mo=5.1*10**18 Nm; NP1: Strike=264, Dip=64, Slip=151; NP2: Strike=8, Dip=65, Slip=29.

18 11 18 40.2* 5.466 N 126.813 E 33 N 4.5 1.4 28 MINDANAO, PHILIPPINE ISLANDS18 11 43 13.0& 34.976 N 117.021 W 7 28 SOUTHERN CALIFORNIA. <PAS-P>. ML 3.0 (PAS).18 12 46 37.2& 40.918 N 33.917 E 10 G 7 TURKEY. <ISK>. MD 3.8 (ISK). Felt in Kastamonu Province.18 12 54 34.0* 43.627 N 82.501 E 33 N 0.8 9 NORTHERN XINJIANG, CHINA18 12 59 53.0? 49.21 S 121.35 E 10 G 4.2 1.4 9 SOUTH OF AUSTRALIA18 13 26 33.0* 17.771 S 178.652 W 550 G 4.£ 0.8 30 FIJI ISLANDS REGION18 13 38 45.9* 5.481 N 127.018 E 33 N 4.2 1.5 13 PHILIPPINE ISLANDS REGION18 13 39 19.7& 34.870 N 26.170 E 5 4 CRETE. <ATH>. MD 3.7 (ATH) .18 13 52 57.4? 5.57 N 126.34 E 33 N 1.3 7 MINDANAO, PHILIPPINE ISLANDS18 14 05 58.4* 51.287 N 169.020 W 33 N 2-£ 1.0 7 FOX ISLANDS, ALEUTIAN ISLANDS18 14 14 15.5& 63.339 N 145.306 W 7 15 CENTRAL ALASKA. <AEIC>. ML 2.5 (AEIC) .18 14 26 24.0 22.537 S 169.777 E 18 * 5.1 4.7 1.0 64 LOYALTY ISLANDS REGION. Mw 5.4 (HRV) .

Centroid, Moment Tensor (HRV): Centroid origin time 14:26:25.1; Lat 23.09 S; Lon 169.44 E; Dep 15.0 Fix; Half- duration 1.1 sec; Principal axes (scale 10**17 Nm) : (T) Val=1.53, Plg=8, Azm=220; (N) Val=0.12, Plg=73, Azm=102; (P) Val=-1.64, Plg=15, Azm=312; Best double couple: Mo=1.6*10**17 Nm; NP1: Strike=355, Dip=74, Slip=-5; NP2: Strike=87, Dip=85, Slip=-164.

18 14 29 10.4* 17.963 S 172.939 W 33 N 4.= 1.1 53 TONGA ISLANDS REGION18 14 52 00.4* 9.319 N 126.569 E 33 N 4.E 1.2 28 MINDANAO, PHILIPPINE ISLANDS18 15 00 23.1? 5.64 N 126.98 E 33 N 4.5 1.5 12 MINDANAO, PHILIPPINE ISLANDS18 15 02 43.3& 40.308 N 29.195 E 11 5 TURKEY. <ISK>. MD 2.6 (ISK).18 15 09 33.5* 52.075 N 170.652 W 33 N 4.1 0.9 21 FOX ISLANDS, ALEUTIAN ISLANDS18 15 30 21.6& 41.280 N 21.050 E 5 16 NORTHWESTERN BALKAN REGION. <SKO>. MD 3.3 (PDG) .18 15 33 13.8 6.608 S 154.928 E 83 * 4.4 0.9 22 SOLOMON ISLANDS18 16 18 38.5 45.655 N 148.974 E 141 * 4-3 1.2 48 KURIL ISLANDS18 17 08 31.7& 33.600 S 70.861 W 71 13 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 1.7 (GUC).18 17 43 06.5 11.592 N 60.900 W 33 N 4.1 1.3 18 WINDWARD ISLANDS. MD 4.0 (TRN) .18 18 16 57.1? 6.15 S 150.31 E 54 ? 4.1 1.0 7 NEW BRITAIN REGION, P.N.G.18 19 16 47.7 5.493 N 126.771 E 33 N 5.0 4.1 0.9 62 MINDANAO, PHILIPPINE ISLANDS. Mw 5.2 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 19:16:56.5;. Lat 5.38 N; Lon 126.60 E; Dep 35.6; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm) : (T) Val=4.76, Plg=82, Azm=63; (N) Val=3.20, Plg=7, Azm=210; (P) Val=-7.95, Plg=4, Azm=301; Best double couple: Mo=6.3*10**16 Nm; NPl: Strike=38, Dip=41, Slip=100; NP2: Strike=204, Dip=50, Slip=81.

18 19 29 05.2& 39.021 N 27.198 E 10 G 10 TURKEY. <ISK>. MD 3.5 (ATH), 3.1 (ISK).18 19 47 25.1 85.677 N 85.772 E 10 G 5.3 4.8 0.9 219 NORTH OF SEVERNAYA ZEMLYA. Mw 5.0 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 19:47:23.2; Lat 85.52 N; Lon 82.02 E; Dep 15.0 Fix; Half- duration 1.0 sec,- Principal axes (scale 10**16 Nm) : (T) Val=3.34, Plg=0, Azm=193; (N) Val=1.09, Plg=0, Azm=103; (P) Val=-4.43, Plg=90, Azm=180; Best double couple: Mo=3.9*10**16 Nm; NPl: Strike=283, Dip=45, Slip=-90; NP2: Strike=103, Dip=45, Slip=-90.

18 19 51 59.3 33.050 S 70.000 W 100 G 0.7 15 CHILE-ARGENTINA BORDER REGION. MD 3.6 (GUC).18 21 22 50.6 28.456 N 51.954 E 33 N 4.4 0.8 60 SOUTHERN IRAN18 21 23 40.3 44.053 N 12.142 E 10 G 0.7 10 NORTHERN ITALY. ML 2.8 (LOG).18 21 46 31.0& 34.283 S 70.142 W 11 6 CHILE-ARGENTINA BORDER REGION. <GUC>.18 21 55 54.It 34.241 S 70.112 W 2 9 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.0 (GUC).18 22 15 53.1 56.179 N 151.915 W 10 G 4.1 0.6 27 KODIAK ISLAND REGION. ML 3.8 (AEIC).18 22 45 02.3& 33.678 S 70.476 W 16 14 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.3 (GUC).18 22 50 39.7? 38.02 N 142.49 E 33 N 3.6 1.5 8 NEAR EAST COAST OF HONSHU, JAPAN18 23 29 59.6? 4.58 S 104.69 E 213 ? 4-C 1.3 13 SOUTHERN SUMATERA, INDONESIA18 23 41 21.4& 30.982 S 71.966 W 7 11 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.9 (GUC).18 23 49 01.Ot 47.780 N 7.760 £15 6 SWITZERLAND. <FBB>. ML 1.8 (LOG), 1.5 (FBB) .19 00 04 50.8 38.019 N 72.575 E 130 * 4.4 0.8 41 TAJIKISTAN19 00 10 28.7* 17.945 S 178.511 W 550 G 4.5 0.9 61 FIJI ISLANDS REGION19 00 14 29.2* 5.543 S 149.708 E 154 * 4.5 1.2 16 NEW BRITAIN REGION, P.N.G.19 00 56 17.6* 7.284 S 107.083 E 33 N 4-6 1.2 19 JAWA, INDONESIA19 01 05 53.0& 15.960 N 60.847 W 18 4 LEEWARD ISLANDS. <FDF>. MG 2.2 (FDF).19 01 07 45.5? 18.52 S 168.10 E 33 N 4.3 0.8 6 VANUATU ISLANDS19 01 21 50.1* 17.714 S 178.320 W 550 G 4-5 1.1 31 FIJI ISLANDS REGION19 01 45 49.3* 11.416 N 149.448 E 33 N 4.5 1.3 12 E. CAROLINE ISLANDS, MICRONESIA19 01 47 57.It 33.681 S 70.475 W 16 8 CHILE-ARGENTINA BORDER REGION. <GUC>.19 01 53 32.7& 40.467 N 28.197 E 10 G 4 TURKEY. <ISK>. MD 2.5 (ISK).19 02 01 23.5 0.142 S 124.390 E 81 * 4.7 1.2 36 SOUTHERN MOLUCCA SEA19 02 17 33.5& 40.746 N 27.364 E 10 G 4 TURKEY. <ISK>. MD 2.5 (ISK).19 02 29 11.Ot 48.310 N 9.030 E 10 G 6 GERMANY. <FBB>. ML 2.1 (LOG), 1.6 (FBB).19 02 58 29.2& 32.615 S 71.713 W 26 11 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 4.1 (GUC).19 03 46 44.2& 45.700 N 3.000 £2 6 FRANCE. <LDG>. ML 1.7 (LOG).19 03 50 07.5* 31.160 N 131.458 E 55 * 4.: 1.2 18 KYUSHU, JAPAN. Felt (I JMA) in southern Kyushu.19 04 06 04.7t 10.946 N 62.465 W 73 4 NEAR COAST OF VENEZUELA. <TRN>. MD 3.3 (TRN).19 04 17 25.0* 9.617 S 155.523 E 33 N 4.2 1.4 11 D' ENTRECASTEAUX ISLANDS REGION19 04 53 35.7 6.989 S 129.546 E 92 * 4.5 1.0 25 BANDA SEA19 05 19 05.7& 63.389 N 151.054 X 16 35 CENTRAL ALASKA. <AEIC>- ML 3.0 (AEIC), 3.1 (PMR) .19 05 54 23.4? 35.75 N 69.66 E 144 ? -i. 1 1.4 8 HINDU KUSH REGION, AFGHANISTAN19 06 39 32.7 53.531 N 164.638 W 33 N 4-5 1.1 57 UNIMAK ISLAND REGION. ML 4.4 (AEIC), 4.1 (PMR). Felt at

Akutan. 19 08 02 16.0& 31.689 N 116.717 ; ; 6 G 4 BAJA CALIFORNIA, MEXICO. <PAS-P>. ML 3.3 (PAS). MD 3.5

(ECX). Felt at El Sauzal and Ensenada.19 08 06 56.1 5.628 S 152.834 E 33 N -i .; O./ 16 NEW BRITAIN REGION, P.N.G. 19 08 20 44.4& 39.146 N 27.803 E 15 4 TURKEY. <ISK>. MD 2.8 (ISK). 19 08 42 31.0& 48.310 N 9.030 E 10 12 GERMANY. <FBB>. ML 2.4 (LDG), 1.6 (FBB). 19 09 03 09.1 5.414 S 146.879 E 209 D :.'. 1.0 153' EASTERN NEW GUINEA REG., P.N.G. Mw5.7 (GS) , 5.7 (HRV).

JUN 1999

19191919191919191919191919191919191919

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.9& 38.

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.5& 41.

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.9& 32.

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.0* 14.

.5* 4.

.0* 24.

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.6& 32.

. 6& 63.

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.4 85.

.2? 13.

.8* 40.

.1* 31.

.1 50.

.8& 38.

.7& 40.

.3& 34.

.3- 45.

.3* 23.

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.9& 44.

.7* 30.

.7& 41.

.3& 41.

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. 5& 44

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.028 N,210 N,200 N,961 N004 N,400 N,462 N.021 S,160 N.237 N,382 N.624 N083 S,357 N,616 S,09 S,773 N,598 N,622 S

,119 N.41 N.445 N

,538 N64 N.939 N

.678 N

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.830 S

.204 N

.157 S

.882 N

.714 N

.000 N

.043 S

.561 N

.942 N

.304 N

.183 N

.850 S

.806 N

.800 N

.898 N

.13 N

.990 N

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20 08 12 30.8 4.616 S 151.791 E 179 4.620 08 28 57.9& 40.481 N 26.792 E 10 G20 09 06 42.4* 13.185 N 89.702 W 33 N 4.220 09 10 08.1& 39.180 N 27.459 E 10 G20 09 11 59.6£ 19.308 N 98.473 W 320 09 58 37. Qf 3H.230 N 118.390 W 11

20 10 25 20.8 19.263 N 98.520 W 10 G 3.3

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3.6 (FUR), 3.5

Moment Tensor (GS): Dep 205; Principal axes (scale 10**17 Nm) : (T) Val=4.18, Plg=51, Azm=96; (N) Val=0.64, Plg=38, Azm=295; (P) Val=-4.82, Plg=10, Azm=198; Best double couple: Mo=4.5*10**17 Nm; NP1: Strike=252, Dip=48, Slip=35,- NP2: Strike=137, Dip=65, Slip=132.

Centroid, Moment Tensor (HRV): Centroid origin time 09:03:15.2; Lat 5.38 S; Lon 147.31 E; Dep 230.0; Half- duration 2.2 sec; Principal axes (scale 10**17 Nm) : (T) Val=4.34, Plg=60, Azm=81; (N) Val=-0.44, Plg=20, Azm=311; (P) Val=-3.90, Plg=21, Azm=213; Best double couple: Mo=4.1*10**17 Nm; NP1: Strike=271, Dip=30, Slip=46; NP2: Strike=139, Dip=69, Slip=112.

TURKEY. <ISK>. MD 3.3 (ISK).WESTERN IDAHO. ML 3.3 (BUT), 3.1 (BSE).FRANCE. <LDG>. ML 2.5 (LOG).OFF COAST OF WASHINGTON. ML 3.7 (PGC).SOUTH OF ALASKA. ML 3.3 (AEIC).TURKEY. <ISK>. MD 2.9 (ISK).SOUTHERN ALASKA. <AEIC>.NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC).MYANMAR-INDIA BORDER REGIONMINDANAO, PHILIPPINE ISLANDSMARIANA ISLANDS REGIONOFF W COAST OF NORTHERN SUMATERASOUTH OF FIJI ISLANDSMINDANAO, PHILIPPINE ISLANDSD'ENTRECASTEAUX ISLANDS REGIONBANDA SEACORSICA. ML 2.9 (LOG).SOUTHERN ALASKA. <AEIC>. ML 2.6 (AEIC), 2.8 (PGC).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.9 (GUC). Felt (IV) at Zapallar and (II) at Concon, Puchuncavi, Quillota and Quintero.

CENTRAL ALASKA. <AEIC>.MINDANAO, PHILIPPINE ISLANDSNORTHERN ITALY. ML 3.9 (GRF), 3.8 (VIE) (FBB), 3.5 (LOG), 3.4 (TRI), 3.3 (CLL).

NORTH OF SEVERNAYA ZEMLYANEAR COAST OF GUATEMALA. MD 4.6 (UNM).NEAR EAST COAST OF HONSHU, JAPAN. Felt (I JMA) southeastern Aomori Prefecture.

WESTERN IRANPOLAND. ML 3.7 (GRF), 3.5 (VIE), 3.2 (CLL).GREECE. <ATH>. MD 3.2 (ATH).TURKEY. <ISK>. MD 3.2 (ISK).NEAR COAST OF CENTRAL CHILE. <GUC>.ROMANIATAIWAN REGIONSOUTHERN CALIFORNIA. <PAS-P>. ML 2.iNORTHERN ITALY. <GEN>. ML 2.7 (GEN)KERMADEC ISLANDS REGIONCOOK STRAIT, NEW ZEALAND. <WEL>. ML 3.9 (WEL). Felt at Ward on the South Island.

COOK STRAIT, NEW ZEALAND. <WEL>. ML 3.3 (WEL). Felt at Ward on the South Island.

NORTHEASTERN INDIACHILE-ARGENTINA BORDER REGION.NORTHERN ITALY. <GEN>. ML 2.5EASTERN SEA OF JAPANPYRENEES. <LDG>. ML 2.3 (LOG).CHILE-ARGENTINA BORDER REGION.TURKEY. <ISK>. MD 2.7 (ISK).PHILIPPINE ISLANDS REGIONKURIL ISLANDSWINDWARD ISLANDS. <TRN>. MD 2.7 (TRN).COOK STRAIT, NEW ZEALAND. <WEL>. ML 3.5 (WEL). Felt at Ward on the South Island.

KODIAK ISLAND REGION. Felt at Kodiak.SPAIN. <MDD>. ML 3.4 (LOG). mbLg 2.9 (MDD). Felt (II) in the Triacastela area.MARIANA ISLANDSARABIAN SEASOUTHERN GREECE. <ATH>. MD 3.0 (ATH).NORTHERN ITALY. <GEN>. ML 1.7 (GEN).TAIWAN REGION. Felt (III JMA) at Cheng-kung.PRINCE EDWARD ISLANDS REGION. Mw 5.3 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 07:38:15.5; Lat 40.83 S; Lon 43.65 E; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**17 Nm) : (T) Val=0.67, Plg=4, Azm=320; (N) Val=0.44, Plg=71, Azm=64; (Pi Val=-l.ll, Plg=18, Azm=229; Best double couple: Mo=8.9*10**16 Nm; NP1: Strike=6, Dip=74, Slip=-170; NF2: Strike=273, Dip=81, Slip=-16.

(PAS). 2.4 (LOG).

<GUC>. MD 3.1 (GUC). (GEN), 2.2 (LDG).


DODECANESE ISLANDS.(ISK) .

NEW BRITAIN REGION, TURKEY. <ISK>. MD 2 EL SALVADOR TURKEY. <ISK>. MD 2

<ATH> . ML 4.2 (ATH), 3.7 (CSS) . K3 3.8

P.N.G. 6 (ISK).

(ISK).CENTRAL MEXICO. <UNM>. MD 3.3 (UNM). CALIFORNIA-NEVADA BORDER REGION. <REN-P>. MD 2.7 (REN)3.3 (GS).

CENTRAL MEXICO. MD 3.7 (UNM).

JUN 1999 PAGE 20

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JORDAN - SYRIA REGION. ML 3.7 (Gil).TURKEY. <ISK>. MD 2.8 (ISK).VANUATU ISLANDSCALIFORNIA-NEVADA BORDER REGION. <GM-P>. MD 2.9 (GM) .GREECE. <ATH>. MD S.0 (ATH).NORTHERN ITALY. ML 2.1 (VIE).SOLOMON ISLANDSTONGA ISLANDSGREECE. <ATH>. MD 3.2 (ATH).GREECE. <ATH>. MD 2.0 (ATH).TALAUD ISLANDS, INDONESIAMINDANAO, PHILIPPINE ISLANDSTURKEY. <ATH>. MD 3.7 (ATH), 3.4 (ISK).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.5 (GUC).IRIAN JAYA, INDONESIANEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.5 (GUC) .TONGA ISLANDSGREECE. <ATH>. MD 2.3 (ATH).SOUTH OF FIJI ISLANDSUNIMAK ISLAND REGION. <AEIC>. ML 2.8 (AEIC).NORTHWESTERN BALKAN REGION. ML 3.0 (VIE), 2.5 (ZAG) , 2.4 (TRI).

GREECE-ALBANIA BORDER REGION. <ATH>.NEW BRITAIN REGION. P.N.G.NEAR N COAST OF NEW GUINEA, PNG.NORTHERN SUMATERA, INDONESIAKENAI PENINSULA, ALASKA. <AEIC>.IONIAN SEA. <ATH>. MD 3.2 (ATH).D'ENTRECASTEAUX ISLANDS REGIONDODECANESE ISLANDS. <ATH>.CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.1 (GUC).NORTHERN ITALY. <GEN>. ML 2.5 (GEN), 2.4 (LOG).GUERRERO, MEXICO. MD 3.7 (UNM).MINDANAO, PHILIPPINE ISLANDSNEW BRITAIN REGION, P.N.G.NORTHWESTERN BALKAN REGION. ML 2.5 (VIE).TURKEY. <ISK>. MD 3.0 (ISK).NORTHERN ITALY. <LDG>. ML 2.5 (GEN), 2.0 (LOG).CENTRAL CHILE. <GUC>.WESTERN CAROLINE ISLANDS. Mw 5.6 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 04:35:48.1; Lat 8.06 N; Lon 141.55 E; Dep 15.0 Bdy; Half- duration 1.5 sec; Principal axes (scale 10**17 Nm): (T) Val=2.67, Plg=14, Azm=l; (N) Val=-0.53, Plg*76, Azm=184; (P) Val=-2.14, Plg=l, Azm=92; Best double couple: Mo=2.4*10**17 Nm; NP1: Strike=137, Dip=79, Slip=10; NP2: Strike=46, Dip=81. Slip=169.

FRANCE. ML 2.1 (LDG).GUERRERO, MEXICO. MD 3.6 (UNM).WESTERN CAROLINE ISLANDSBANDA SEAAEGEAN SEA. <ATH>. MD 3.4 (ATH).CENTRAL ALASKA. <AEIC>. ML 2.7 (AEIC), 3.0 (PMR).NORTH ISLAND, NEW ZEALAND. <WEL>.OFF COAST OF WASHINGTONMINDANAO, PHILIPPINE ISLANDSSOUTH ISLAND, NEW ZEALAND. <WEL>. ML 4.6 (WEL) .FRANCE. <GEN>. ML 1.6 (GEN).OAXACA, MEXICO. <UNM>. MD 3.9 (UNM).NEAR COAST OF GUERRERO, MEXICO. <UNM>.OFF W. COAST OF N. ISLAND, N.Z. <WEL>.

MD 3.8 ML 4.5

(UNM). (WEL).

3.6 (BUT).


HEBGEN LAKE REGION. <SLC-P>. ML 2.9 (SLC) NORTHERN ITALY. ML 3.2 (LDG), 3.0 (TRI). NORTH OF SEVERNAYA ZEMLYA NEAR COAST OF CENTRAL CHILE. TURKEY. <ISK>. MD 2-9 (ISK). TURKEY. <ISK>. MD 2.9 (ISK). FRANCE. <GEN>. ML 1.6 (GEN). TONGA ISLANDS. Mw 5.1 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 13:09:41.3; Lat 15.79 S; Lon 172.38 W; Dep 15.0 Bdy; Half- duration 1.0 sec,- Principal axes (scale 10**16 Nm) : (T) Val=5.34, Plg=79, Azm=201; (N) Val=1.19, Plg=ll. Azm=21; (P) Val=-6.53, Plg=0, Azm=lll,- Best double couple: Mo=5.9*10**16 Nm; NP1: Strike=212, Dip=46, Slip=106; NP2: Strike=10, Dip=46, Slip=74.

TRINIDAD. <TRN>. tC 3.5 (TRN). D'ENTRECASTEAUX ISLANDS REGIONNEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.0 (GUC) . TURKEY. <ISK>. MD 2.8 (ISK). HOKKAIDO, JAPAN RS3ION. Mw 5.1 (HRV). Felt (II JMA) inparts of eastern Hokkaido.

Centroid, Moment Tensor (HRV): Centroid origin time 16:52:47.1; Lat 43.91 N; Lon 146.43 E; Dep 80.5; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm) : (T)

Azm=316; (N) Val=0.39, Plg=4, Azm=58; (P)Azm=149; Best double couple:

NPl: Strike=246, Dip=26, Slip=99; NP2:Slip=85.

(VIE). - .AFGHANISTAN. Mw 5.5 (GS).

: Dep 215; Principal axes (scale 10**17

Val=5.52,Val=-5.91Mo=5.7*10Strike=56

POLAND. ML HINDU KUSK REGION, Moment Tensor (GS)

Plg=71,Plg=lS,

*16 Nm;Dip=64,

3.4

Nm) : (T) Val=2.3£. ?lg=74, Azm=357; (N) Val = -0.22. Plg=l,

JUN 1999

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Azm=89; (P) Val=-2.14, Plg=16, Azm=179; Best double couple: Mo=2.2*10**17 Nm; NP1: Strike=270, Dip=30, Slip=91; NP2: Strike=89, Dip=61, Slip=89.

GUERRERO, MEXICO. Mw 6.3 (HRV), 6.2 (GS). Me 5.7 (GS). MD 5.8 (UNM). More than 1,300 homes damaged including 600 at Coahuayutla, Guerrero. One church damaged at Cuitzeo, Michoacan. Minor damage in Morelos. Felt at Mexico City and in the states of Colima, Jalisco, Mexico, Oaxaca, Puebla, San Luis Potosi and Veracruz.

Broadband Source Parameters (GS): Dep 47; NP1: Strike=360, Dip=10, Slip=-45; NP2: Strike=135, Dip=83, Slip=-97; Radiated energy 8.5*10**12 Nm. Two events about 2 seconds apart. Depth based on first event.

Moment Tensor (GS): Dep 50; Principal axes (scale 10**18 Nm): (T) Val=2.10, Plg=28, Azm=219; (N) Val=0.99, Plg=5. Azm=311; (P) Val=-3.09, Plg=61, Azm=50; Best double couple: Mo=2.6*10**18 Nm; NP1: Strike=296, Dip=17, Slip=-106; NP2: Strike=133, Dip=74, Slip=-85.

Centroid, Moment Tensor (HRV): Centroid origin time 17:43:09.1; Lat 18.09 N; Lon 101.62 W; Dep 48.0 Bdy; Half- duration 3.5 sec; Principal axes (scale 10**18 Nm) : (T) Val=3-16, Plg=26, Azm=201; (N) Val=-0.09, Plg=20, Azm=302; (P) Val=-3.07, Plg=56, Azm=65; Best double couple: Mo=3.1*10**18 Nm; NP1: Strike=254, Dip=27. Slip=-141; NP2: Strike=128, Dip=74, Slip=-69.

KURIL ISLANDS. Felt (III) at Severo-Kurilsk.NEAR COAST OF GUERRERO, MEXICO. <UNM>. MD 4.2 (UNM).GREECE. <ATH>. MD 3.0 (ATH).FIJI ISLANDS REGIONTURKEY. <ATH>. MD 3.5 (ATH).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.2 (GUC).GREECE. <ATH>. MD 3.1 (ATH). Felt at Thessaloniki.AEGEAN SEA. <ATH>. MD 3.0 (ATH).SOUTH OF KERMADEC ISLANDSALASKA PENINSULA. <AEIC>.SOUTH OF FIJI ISLANDSSOUTHERN CALIFORNIA. <PAS-P>. ML 3.1 (PAS).OAXACA. MEXICO. MD 4.3 (UNM).STRAIT OF GIBRALTAR. <MDD>. mbLg 2.1 (MOD).IRIAN JAVA REGION, INDONESIA. Mw 5.7 (GS), 5.7 (HRV). Me 6.0 (GS) .

Broadband Source Parameters (GS): Dep 9; NP1: Strike=45, Dip=60, Slip=-10; NP2: Strike=140, Dip=81, Slip=-150; Radiated energy 1.9*10**13 Nm.

Moment Tensor (GS): Dep 13; Principal axes (scale 10**17 Nm): (T) Val=4.02, Plg=0, Azm=323; (N) Val=0.16, Plg=55. Azm=233; (P) Val=-4.18, Plg=35, Azm=54; Best double couple: Mo=4.1*10**17 Nm; NP1: Strike=93, Dip=66, Slip=-26; NP2: Strike=194. Dip=66, Slip=-154.

Centroid, Moment Tensor (HRV): Centroid origin time 00:47:42.1; Lat 4.42 S; Lon 134.19 E; Dep 15.0 Bdy; Half- duration 1.6 sec; Principal axes (scale 10**17 Nm) : (T) Val=3.96, Plg=18, Azm=290; (N) Val=0.04, Plg=27, Azm=190; (P) Val=-4.01, Plg=56, Azm=49; Best double couple: Mo=4.0*10**17 Nm; NPl: Strike=55, Dip=36, Slip=-38; NP2: Strike=178, Dip=69, Slip=-120.

QINGHAI, CHINAGUERRERO, MEXICO. MD 4.5 (UNM).IRIAN JAVA REGION, INDONESIATURKEY. MD 3.5 (ISK).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.3 (GUC).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.3 (GUC).CHILE-ARGENTINA BORDER REGIONSOUTHERN GREECE. <ATH>. MD 3.7 (ATH).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.8 (GUC).STRAIT OF GIBRALTAR. <MDD>. mbLg 2.2 (MOD).SOUTHERN SUMATERA, INDONESIAKURIL ISLANDSIRIAN JAYA REGION, INDONESIACHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.9 (GUC).TURKEY. <ISK>. MD 2.8 (ISK).OFF W COAST OF NORTHERN SUMATERA. Mw 5.0 (HRV). Felt (III) at Banda Aceh.

Centroid, Moment Tensor (HRV): Centroid origin time 07:11:28.8; Lat 5.12 N; Lon 93.49 E; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm) : (T) Val=4.03, Plg=0, Azm=130; (N) Val=0.17, Plg=75, Azm=40; (P) Val=-4.20, Plg=15, Azm=220; Best double couple: Mo=4.1*10**16 Nm; NPl: Strike=264, Dip=79, Slip=-ll; NP2: Strike=356, Dip=79, Slip=-169.

LOYALTY ISLANDS REGIONAUSTRIA. ML 2.7 (VIE).NEAR COAST OF MICHOACAN, MEXICO. MD 4.3 (UNM).ROMANIALOYALTY ISLANDS REGIONTURKEY. <ISK>. MD 2.7 (ISK).IRIAN JAYA REGION, INDONESIATONGA ISLANDSCHILE-ARGENTINA BORDER REGION. <GUC>. MD 3.6 (GUC).HINDU KUSH REGION, AFGHANISTANTURKEY. <ISK>. MD 2.6 (ISK).NORTHWESTERN BALKAN REGION. ML 2.7 (VIE), 2.1 (LJU).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.8 (GUC).

JUN 1999 PAGE 22

22 12 14 00.9* 37.009 N 43.996 E 33 N 3.6 0.9 10 TURKEY22 13 52 18.1& 50.000 N 1.800 E 2 6 FRANCE. <LDG>. ML 2.5 (LOG).22 13 53 10.2 58.271 N 142.755 W 10 G 0.7 22 GULF OF ALASKA. ML 2.7 (AEIC) .22 14 13 23.0* 36.469 N 8.0S5 v; 33 N 0.7 22 WEST OF GIBRALTAR. mbLg 3.1 (MDD).22 14 29 15.6& 34.853 S 71.029 W 108 9 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.9 (GUC).22 14 39 03.0& 39.400 N 20.54C E 5 10 GREECE-ALBANIA BORDER REGION. <ATH>. MD 3.4 (ATH).22 15 06 16.6 53.236 N 164.601 W 33 N 4.4 0.9 53 UNIMAK ISLAND REGION. ML 4.0 (AEIC).22 15 14 46.9& 39.258 N 27.806 E 10 G 4 TURKEY. <ISK>. MD 2.7 (ISK).22 16 49 10.8& 38.798 N 122.756 W 2 6 NORTHERN CALIFORNIA. <GM-P>. MD 2.8 (GM) .22 17 04 51.6 29.316 N 51.978 E 33 N 4.6 1.2 49 SOUTHERN IRAN22 17 32 23.3& 41.511 N 20.343 E 4 12 ALBANIA. <PDG>. MD 2.8 (PDG).22 17 47 21.3* 9.571 S 155.413 E 33 N 4.4 1.1 16 D'ENTRECASTEAUX ISLANDS REGION22 17 51 36.5 40.084 S 45.895 E 10 G 4.9 0.6, 17 SOUTHWEST INDIAN RIDGE22 18 12 11.2* 0.838.S 136.079 E 33 N 4.3 0.9 18 IRIAN JAYA REGION, INDONESIA22 18 35 30.0* 4.957 S 152.619 E 70 * 4.2 1.0 12 NEW BRITAIN REGION, P.N.G.22 18 48 17.6 56.274 S 27.638 W 96 D 5.4 1.1 100 SOUTH SANDWICH ISLANDS REGION. Mw 5.5 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 18:48:21.3; Lat 56.18 S; Lon 27.07 W; Dep 86.8; Half- duration 1.4 sec; Principal axes (scale 10**17 Nm): (T) Val=2.03, Plg=23, Azm=148 ; (N) Val=0.29, Plg=9, Azm=55; (P) Val=-2.32, Plg=65, Azm=305; Best double couple: Mo=2.2*10**17 Nm; NPI: Strike=255, Dip=23, Slip=-68; NP2: Strike=51, Dip=69, Slip=-99.

22 19 53 18.9& 55.621 N 162.503 W 162 20 ALASKA PENINSULA. <AEIC>.22 20 07 33.2* 0.858 S 136.242 E 33 N 1.0 8 IRIAN JAYA REGION, INDONESIA22 20 42 56.0? 9.57 S 155.74 E 33 N 1.3 9 D'ENTRECASTEAUX ISLANDS REGION22 20 48 04.2? 28.82 N 130.18 E 33 N 1.5 7 RYUKYU ISLANDS22 20 57 43.6* 27.923 N 55.847 E 33 N 4.1 0-9 22 SOUTHERN IRAN22 21 03 05.1 46.006 N 13.828 E 10 G 0.4 9 AUSTRIA. ML 2.5 (VIE).22 21 22 06.3 14.231 N 91.774 W 74 * 4.5 1.3 44 GUATEMALA. MD 4.7 (UNM) .22 22 55 12.9& 40.721 N 29.862 E 5 9 TURKEY. <ISK>. MD 3.0 (ISK).22 23 07 40.1 18.938 N 144.993 E 566 4.7 0.8 65 MARIANA ISLANDS22 23 48 30.5* 53.535 N 160.132 E 33N4.2 0.7 8 NEAR EAST COAST OF KAMCHATKA22 23 53 15.5 47.701 N 14.256 E 10 G 1.1 6 AUSTRIA. ML 2.0 (VIE).23 00 36 10.3& 44.291 N 7.328 E 13 8 NORTHERN ITALY. <GEN>. ML 2.0 (GEN).23 00 58 28.8 18.688 N 106.460 W 33 N 4.0 0.6 17 OFF COAST OF JALISCO, MEXICO23 01 01 03.3* 22.327 S 68.864 W 104 D 4.5 1.5 29 NORTHERN CHILE. Felt at Calama.23 01 17 04.7& 65.612 N 148.202 W 14 20 "NORTHERN ALASKA. <AEIC>. ML 2.7 (AEIC), 3.1 (PMR).23 01 22 06.6& 38.970 N 0.670 W 11 10 SPAIN. <MDD>. mbLg 2.3 (MDD).23 02 05 49.0? 14.64 S 167.12 E 126 ? 4.5 1.3 22 VANUATU ISLANDS23 02 57 34.2& 37.790 S 177.090 E 230 14 OFF E. COAST OF N. ISLAND, N.Z. <WEL>.23 03 13 45.5* 6.970 S 72.118 E 10 G 4.4 0.9 21 CHAGOS ARCHIPELAGO REGION. Felt on Diego Garcia.23 04 22 04.8* 30.412 N 131.378 E 53 * 4.0 0.8 12 KYUSHU, JAPAN23 06 11 52.2* 16.980 N 94.927 W 100 G 0.8 6 OAXACA, MEXICO. MD 4.1 (UNM).23 07 03 15.0& 37.210 N 116.820 W 1 20 SOUTHERN NEVADA. <REN-P>. MD 3.0 (REN). ML 3.2 (GS).23 07 41 28.5& 40.229 N 30.017 E 8 5 TURKEY. <ISK>. MD 2.8 (ISK).23 06 06 22. 9& 34.551 S 71.497 W 60 7 NEAR COAST OF CENTRAL CHILE. <GUC>.23 08 30 41.9* 62.842 S 145.46C E 10 G 4.6 1.2 20 SOUTH OF AUSTRALIA23 08 36 17.2& 44.386 N 6.986 E 6 10 FRANCE. <GEN>. ML 2.2 (GEN).23 08 37 37.2& 33.028 S 70.535 W 70 11 CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.6 (GUC).23 09 51 24.2* 17.480 N 100.427 W 33 N 1.4 6 GUERRERO, MEXICO. MD 3.7 (UNM).23 10 23 08.0 57.348 N 143.493 W 10 G 0.8 46 GULF OF ALASKA. ML 3.3 (AEIC).23 10 51 21.8* 85.547 N 85.660 E 10 G 4.2 0.9 17 NORTH OF SEVERNAYA ZEMLYA23- 11 01 01.7* 27.934 N 143.596 E 33 N 4.4 0.7 11 BONIN ISLANDS REGION23 11 03 39.5* 40.466 S 17.247 W 10 G 4.7 1.4 27 SOUTHERN MID-ATLANTIC RIDGE23 11 24 46.8t 63-581 N 150.620 W 51 23 CENTRAL ALASKA. <AEIC>. ML 2.5 (AEIC) .23 11 38 42.8& 39.790 N 20.350 E 5 8 GREECE-ALBANIA BORDER REGION. <ATH>. MD 3.0 (ATH).23 11 53 41.0? 29.34 S 177.28 W 33 N 4.6 1-3 14 KERMADEC ISLANDS, NEW ZEALAND23 12 33 47.3 85.520 N 86.389 E 10 G 4.64.4 0-9 55 NORTH OF SEVERNAYA ZEMLYA23 13 57 45.2 46.278 N 7.382 E 10 G 1.4 13 SWITZERLAND. ML 2.7 (LDG), 2.3 (FBB).23 13 58 53.1 6.078 S 149.852 E 69 * 4.6 1.3 23 NEW BRITAIN REGION, P.N.G.23 14 04 05.7& 33.420 S 71.154 W 58 10 NEAR COAST OF CENTRAL CHILE. <GUC>. MD 2. 1 (GUC).23 14 43 25.3& 61.683 N 150.86S W 65 47 SOUTHERN ALASKA. <AEIC>. ML 2.5 (AEIC).23 14 56 29.2fc 62.314 N 150.866 W 67 35 CENTRAL ALASKA. <AEIC>. ML 2.6 (AEIC).23 15 42 43.2& 40.907 N 29.311 E 14 7 TURKEY. <ISK>. MD 2.7 (ISK).23 15 57 34.5& 39.940 N 20.700 E 5 7 GREECE-ALBANIA BORDER REGION. <ATH>. MD 3.0 (ATH).23 16 46 02.1* 45.317 N 13.330 E 10 G 0-9 10 NORTHERN ITALY. ML 3.2 (VIE).23 16 54 13.1 5.421 N 126.663 E 99 * 4.6 0.9 34 MINDANAO, PHILIPPINE ISLANDS23 17 03 52.9& 41.779 N 20.211 E 8 12 ALBANIA. <PDG>. MD 2.6 (PDG).23 17 58 55.2* 5.500 S 153.152 E 33 N 4.8 0.8 7 NEW IRELAND REGION, P.N.G.23 18 03 06.0& 42.386 N 19.398 E 24 8 NORTHWESTERN BALKAN REGION. <PDG>. MD 2.0 (PDG).23 19 37 22.8 19.279 N 145.575 E 103 D 5.5 4.9 1.0 187 MARIANA ISLANDS. Mw 5.6 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 19:37:23.8; Lat 19.34 N; Lon 146.05 E; Dep 84.1; Half- duration 1.6 sec,- Principal axes (scale 10**17 Nm) : (T) Val=3.39, Plg=12, Azm=176; (N) Val=-0.87, Plg=69, Azm=51; (P) Val=-2.52, Plg=16, Azm=270; Best double couple: Mo=3.0*10**17 NIT.; NPI: Strike=3l2, Dip=69, Slip=-3; NP2: Strike=43, Dip=S7, Slip=-159.

23 20 38 42.1& 49.200 N 1.1C: W 3 6 FRANCE. <LDG>. ML 2.2 (LDG).23 20 40 07.1 0.324 S 124.465 E 62"* 5.2 4.6 1.3 81 SOUTHERN MOLUCCA SEA. Mw 5.3 (GS), 5.3 (KRV).

Moment Tensor (GS) : Dep 17; Principal axes (scale 10**16 Nm) : (T) Val=9.64, Plg=37, Azm=l; (N) Val=0.07, Plg=52, Azm=19S; (P) Val=-9-71, Plg=9, Azm=97; Best double couple: Mo=9.7*10**16 Nm; NPI; Strike=146, Dip=58, Slip=22; NP2: Strike=44, Dip=71, Slip=146.

Centroid, Moment Tensor (HRV): Centroid origin time 20:40:27.3; Lat 0.97 N; Lon 124.21 E; Dep 39.4; Half- duration 1.1 sec; Principal axes (scale 10**17 Nm) : (T) Val=0.96, Plg=71, Azm=5; (N) Val=0.20, Plg=10, Azm=245; (P) Val = -1.16, Plg=16, Azm=152.; Best double couple:- Mo=l.l*10**17 Mr.; NPI: Strike=227, Dip=30, Slip=70; NP2: Strike=70, Dip=£2, .Slip=101.

u:; 1999

23 2C £3 22.2 43.273 N 17.630 E 1C 3 3.4

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NORTHWESTERN BALKAN REGION'. ML 4 . 0 (VIE), 3.8 (PDG), 3.6 (ZAG) , 3.5 (L J) .

OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.7 (GUC).SOUTHERN ALAS:O. <AZIC>.POLAND. ML 3.1 VIE).OFF COAST OF CENTRAL CHILE. <GUC>. MD 4.4 (GUC).SOUTH OF FIJI ISLANDSMINDANAO, PHILIPPINE ISLANDSSTRAIT OF GIBRALTAR. <MDD>. mbLg 2.8 (HDD).SAN JUAN PROVINCE, ARGENTINA. <GUC>. MD 2.9 (GUC).STRAIT OF GIBRALTAR. <MDD>. mbLg 1.9 (MDD).OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.4 (GUC).CENTRAL ALASKA. <AEIC>. ML 2.6 (AEIC), 2.8 (PMR).NEAR COAST OF VENEZUELA. <TRN>. MD 3.2 (TRN).SWITZERLAND. <LDG>. ML 2.9 (LOG), 2.4 (FBB).NEAR COAST OF PERU. Felt (IV) at Chincha Alta, Pisco and SanVicente de Caaete.GREECE-ALBANIA BORDER REGION. <ATH>. MD 2.9 OFF COAST OF CENTRAL CHILE. <GUC>. MD 3. CALIFORNIA-NEVADA BORDER REGION. <GM-P>.(BRK).

SPAIN. <MDD>. tabLg 2.5 (MDD).PYRENEES. <MDD>. ML 3.0 (LOG). mbLg 2.7 (MDD). SANTA CRUZ ISLANDSOFF COAST OF CENTRAL CHILE. <GUC>. MD 4.2 OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.5 ALBANIA. <PDG>. MD 1.6 (PDG). GERMANY. <FBB>. ML 2.7 (LOG), 2.1 (FBB). NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.6 (GUC). GUERRERO, MEXICO. MD 4.3 (UNM).OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.4 (GUC). HALMAHERA, INDONESIA EASTERN HONSHU. JAPAN. Felt (I JMA) in eastern FukushimaPrefecture.

POLAND. ML 2.4 (CLL). Felt in northeastern Bohemia, CzechRepublic.

CHIAPAS, MEXICO. <UNM>. MD 4.3 (UNM). TURKEY. <ISK>. MD 2.7 (ISK). TURKEY. <ISK>. MD 2.7 (ISK). TURKEY. <ISK>. MD 3.2 (ISK). TURKEY. <ISK>. MD 3.2 (ISK). CENTRAL MID-ATLANTIC RIDGE. Mw 5.3 (HRV). Centroid, Moment. Tensor (HRV): Centroid origin time07:30:51.6; Lat 0.92 N; Lon 28.72 W; Dep 15.0 Fix; Half-duration 1.1 sec; Principal axes (scale 10**17 Nm)-. (T)Val=1.02, Plg=4, Azm=219; (N) Val=-0.03, Plg=86, Azm=30;(P) Val=-0.99. Plg=l, Azm=129; Best double couple:Mo=1.0*10**17 Nm; NPl: Strike=263, Dip=86, Slip=177 ; NP2:Strike=354. Dip=87, Slip=4. LOYALTY ISLANDS REGIONCHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.2 (GUC). CENTRAL MEXICO. <UNM>. MD 4.2 (UNM). NEAR EAST COAST OF KAMCHATKAOFF COAST OF CENTRAL CHILE. <GUC>. MD 4.2 (GUC).

<AEIC>. ML 3.3 (AEIC), 3.5 (PMR)



MD 4.1 (VIE) ,

<GUC>. MD 3.7 3.2 (TRN). <GUC>. MD 3.4

<UNM>

(GUC). 1.5 (LJU). (GUC).

(GUC). MD 4.1 (UNM).

CENTRAL ALASKA.Kantishna.OFF COAST OF CENTRAL CHILE TAIWAN REGIONOFF COAST OF CENTRAL CHILE TURKEY. <ISK>. MD 2.8 (ISK).OFF COAST OF CENTRAL CHILE. <GUC>. MD 4.3 (GUC). TURKEY. <ISK>. MD 2.8 (ISK). OFF COAST OF CENTRAL CHILE. <GUC>. NORTHWESTERN BALKAN REGION. ML 1.9 OFF COAST OF CENTRAL CHILE. WINDWARD ISLANDS. <TRN>. MD OFF COAST OF CENTRAL CHILE. NEAR COAST OF GUERRERO, MEXICO. SOUTH OF MARIANA ISLANDSNORTHWESTERN BALKAN REGION. <PDG>. MD 2.7 (PDG). SOUTHERN CALIFORNIA. <PAS-P>. ML 2.9 (PAS). OFF COAST OF CENTRAL CHILE. <GUC>. MD 4.0 (GUC). OFF COAST OF CENTRAL CHILE. NORTHERN ITALY. <GEN>. ML 1 KURIL ISLANDS. Felt (I JMA) TAIWAN REGIONNORTHERN ITALY.. ML 3.0 (VIE). SOUTH OF JAWA, INDONESIA WINDWARD ISLANDS. <TRN>. MD 2.6 (TRN). TONGA ISLANDSNORTH ISLAND, NEW ZEALAND. <WEL>. CYPRUS REGION. <CSS>. ML 2.8 (CSS). VANUATU ISLANDSSOUTHERN ALASKA. <AEIC>. ML 2.7 (AEIC). SAN JUAN PROVIJJCE, ARGENTINA. <GUC>. MD 3.6 (GUC). FRANCE. <LDG>. ML 1.9 (GEN), 1.5 (LOG). NEW IRELAND REGION, P.N.G. SOLOMON ISLANDS OFF COAST OF CENTRAL CHILE. OFF COAST OF CENTRAL CHILE. OFF COAST OF CENTRAL CHILE. PACIFIC-ANTARCTIC RIDGE OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.9 (GUC).

Felt at

<GUC>. MD 3.8 (GUC).9 (GEN).in the Bekkai area, Hokkaido.

<GUC> .<GUC> .<GUC>.

MD 4.1MD 3.9MD 3.9

(GUC) .(GUC) .(GUC) .

JUN 1999 PAGE 24

2424

242424

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.863 N

.700 N

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.307 N

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.756 N

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TURKEY. <ISK>. MD 3.1 (ISK).NORTHWESTERN BALKAN REGION. ML 2.3 (VIE), 1.7 (ZAG), 1.5(LJU).

STRAIT OF GIBRALTAR. <MDD>. mbLg 2.0 (HDD).TAIWAN REGIONUKRAINE-MOLDOVA-SW RUSSIA REGION. Felt (II) at Makhachkala, Russia.

RAT ISLANDS, ALEUTIAN ISLANDSLOYALTY ISLANDS REGIONNORTHERN ITALY. <GEN>. ML 1.9 (GEN), 1.4 (LOG).SOUTH OF HONSHU, JAPANSPAIN. <MDD>. mbLg 2.0 (HDD).SPAIN. <MDD>. mbLg 2.0 (HDD).ALASKA PENINSULA. <AEIC>. ML 2 .5 (AEIC).NORTHERN SUMATERA. INDONESIANORTHERN ITALY. ML 3.2 (VIE), 3.0 (LOG).COOK STRAIT, NEW ZEALANDMINDANAO, PHILIPPINE ISLANDSSOUTHERN ALASKA. <AEIC>. ML 3.3 (AEIC), 3.3 (PMR).EASTERN NEW GUINEA REG., P.N.G.SPAIN. <MDD>. mbLg 2.4 (MOD).OAXACA, MEXICO. <UNM>. MD 3.9 (UNM).SOUTHERN CALIFORNIA. <PAS-P>. ML 3.1 (PAS).HOKKAIDO, JAPAN REGIONUNIMAK ISLAND REGION. <AEIC>. ML 4.5 (AEIC), 4.3 (PMR).NORTHERN IRAN. Felt at Kashmar.UNIMAK ISLAND REGION. <AEIC>. ML 3.0 (AEIC).GUERRERO, MEXICO. <UNM>. MD 4.1 (UNM).SOUTH SANDWICH ISLANDS REGIONCENTRAL ALASKA. <AEIC>. ML 2.9 (AEIC), 3.1 (PMR).FIJI ISLANDS REGIONSANTA CRUZ ISLANDSGREECE. <ATH>. ML 4.3 (ATH) . Felt at Athens and Lamia.TAIWAN REGIONTURKEY. <ISK>. MD 2.8 (ISK).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.8 (GUC).GUATEMALA. Mw 5.2 (HRV). MD 4.9 (UNM), 4.9 (CASC). Some damage at Quezaltenango. Felt at Guatemala City.

Centroid, Moment Tensor (HRV): Centroid origin time 09:49:53.3; Lat 14.02 N; Lon 91.73 W; Dep 46.7; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm): (T) Val=7.73, Plg=27. Azm=57; (N) Val=-0.26. Plg=18, Azm=317; (P) Val=-7.48, Plg=56. Azm=197; Best double couple: Mo=7.6*10**16 Nm; NP1: Strike=184, Dip=24, Slip=-40; NP2: Strike=311, Dip=74, Slip=-109.

SOUTH INDIAN OCEANNEAR COAST OF CENTRAL CHILE. Felt (IV) at Rancagua; (III) at Coya, San Fernando, Santa Cruz and Santiago; (II) at San Antonio.TALAUD ISLANDS, INDONESIA. Mw 5.6 (HRV), 5.4 (GS).Moment Tensor (GS): Dep 11; Principal axes (scale 10**17 Nm) : (T) Val=1.36, Plg=65, Azm=163; (N) Val=0.25, Plg=22, Azm=12; (P) Val=-1.61, Plg=ll, Azm=278; Best double couple: Mo=1.5*10**17 Nm; NP1: Strike=343, Dip=39, Slip=54; NP2: Strike=206, Dip=59, Slip=116.

Centroid, Moment Tensor (HRV): Centroid origin time 11:12:32.1; Lat 4.09 N Fix; Lon 126.49 E Fix; Dep 17.2 Fix; Half-duration 1.6 sec; Principal axes (scale 10**17 Nm) : (T) Val=2.33. Plg=58. Azm=97; (N) Val=0.05, Plg=16, Azm=340; (P) Val=-2.38, Plg=27. Azm=242; Best double couple: Mo=2.4*10**17 Nm; NP1: Strike=298, Dip=23, Slip=45; NP2: Strike=165, Dip=74, Slip=106.

GREECE. <ATH>. MD 2.9 (ATH).SOUTHERN EAST PACIFIC RISECENTRAL ALASKA. <AEIC>. ML 4.0 (AEIC), 4.0 (PMR). Felt at Kantishna.

NORTHERN ITALY. ML 3.0 (VIE).NORTHERN ITALY. <GEN>. ML 2.2 (GEN). 2.0 (LOG).GUERRERO, MEXICO. <UNM>. MD 4.0 (UNM).TAIWAN REGIONTAIWAN REGIONTURKEY. <ISK>. MD 3.0 (ISK).PHILIPPINE ISLANDS REGIONNORTHERN ITALY. ML 2.8 (VIE).LEEWARD ISLANDS. <FDF>. MG 2.5 (FDF).SOLOMON ISLANDSFIJI ISLANDS REGIONOFF COAST OF CENTRAL CHILE. MD 4.7 (GUC). Felt (III) at Concon, Puchuncavi, Valparaiso and Vina del Mar; (II) at Quilpue, San Anccriio and Villa Alemana.

OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.9 (GUC).OFF COAST OF CENTRAL CHILE. <GUC>. MD 4.1 (GUC).SALTA PROVINCE, ARGENTINAWESTERN MEDITERRi-XEAN SEA. mbLg 2.5 (MOD).OFF COAST OF CENTRAL CHILE. <GUC>. MD 4.2 (GUC). Felt (II) at Llaillay, Puchuncavi, Valparaiso, Villa Alemana and Vina del Mar.

WINDWARD ISLANDS. <TRN>. KD 2.S (TRN).OFF COAST OF CENTRAL CHILE. <GUC>.OFF COAST OF CENTRAL CHILE. <GUC>. Felt (III) at San Antonio and (II) at Ouiipue and Villa Alemana.

OFF COAST OF CENTRAL CHILE. <GUC>.OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.9 (GUC).

25

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OFF COAST OF CENTRAL CHILE. <GUC>. OFF COAST OF CENTRAL CHILE. <GUC>. OFF COAST OF CENTRAL CHILE. <GUC>.at Valparaiso and Vina del Mar.

OFF COAST OF CENTRAL CHILE. <GUC>. OFF COAST OF CENTRAL CHILE. <GUC>. OFF COAST OF GUERRERO, MEXICO. <UN OFF COAST OF CENTRAL CHILE. <GUC>. OFF COAST OF CENTRAL CHILE. <GUC>. OFF E. COAST OF N. ISLAND, N.Z. OFF COAST OF CENTRAL CHILE. <GUC>. OFF COAST OF CENTRAL CHILE. <GUC>.ENTRECASTEAUX ISLANDS REGION

SOUTHERN GREECE. <ATH>. MD 2.9 (ATH). OFF COAST OF CENTRAL CHILE. <GUC>. MD TIMOR REGION, INDONESIA D'ENTRECASTEAUX ISLANDS REGION MINDANAO, PHILIPPINE ISLANDS

ENTRECASTEAUX ISLANDS REGION CYPRUS REGION. <CSS>. ML 2.9 (CSS). CHILE-ARGENTINA BORDER REGION. <GUC>. OFF COAST OF CENTRAL CHILE. <GUC>. MD

JUN

MD 4.6 (GUC) . Felt.a Alemana.MD 4.1 (GUC) .MD 4.0 (GUC) .MD 4.5 (GUC) . Felt

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1999

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SOUTHERN ALASKA. <AEIC>. ML 3 . 0 (AEIC)SOUTHEAST INDIAN RIDGESPAIN. <MDD>. mbLg 2.9 (MOD). ML 2 . 7 (LDG) .OFF COAST OF CENTRAL CHILE. <GUC> .SOUTHERN ALASKA. <AEIC>.OFF COAST OF CENTRAL CHILE. <GUC> . MD 3 . 7 (GUC) .WESTERN AUSTRALIAFRANCE. <LDG>. ML 2.2 (LDG).FRANCE. <LDG>. ML 2 . 2 (LDG), 2.2 (STR) .OFF COAST OF CENTRAL CHILE. <GUC> . MD 3 . 9 (GUC) .TAIWAN REGIONOFF E. COAST OF N. ISLAND, N.Z. <WEL>.TONGA ISLANDS. Mw 5.2 (HRV) .Centroid. Moment Tensor (HRV) : Centroid origin time 02:57:53.3; Lat 16.04 S; Lon 172.67 W; Dep 15.0 Fix; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm) : (T) Val=7.59, Plg=8, Azm=359; (N) Val=-1.12, Plg=69, Azm=246; (P) Val=-6.47, Plg=19, Azm=92; Best double couple: Mo=7.0*10**16 Nm; NPl : Strike=134, Dip=71, Slip=-7; NP2 : Strike=226, Dip=83, Slip=-160.

NEAR COAST OF GUERRERO, MEXICO. <UNM>.MARIANA ISLANDSNORTHERN ITALY. ML 2 . 2 (LDG).SOLOMON ISLANDSCELEBES SEAOFF COAST OF CENTRAL CHILE. <GUC>.NEAR COAST OF CENTRAL CHILE. <GUC> .FRANCE. <LDG>. ML 2 - 1 (LDG).OFF COAST OF CENTRAL CHILE. <GUC> . MD 3 . 9 (GUC) .OFF COAST OF CENTRAL CHILE. <GUC>. MD 3 . 9 (GUC).TURKEY. <ISK>. MD 2.8 (ISK) .CENTRAL CHILE. <GUC>. MD 3.6 (GUC).S. CHILE -ARGENTINA BORDER REGION. <GUC>. MD 3 . 8 (GUC)OFF COAST OF CENTRAL CHILE. <GUC> . MD 4 . 5 (GUC).OFF COAST OF CENTRAL CHILE. <GUC>. MD 3 . 8 (GUC).OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.6 (GUC) .ALBANIA. MD 3.6 (ATH) , 3.4 (PDG) .FRANCE. <LDG>. ML 2.2 (LDG).OFF COAST OF CENTRAL CHILE. <GUC> . MD 4 . 2 (GUC) .EASTERN CAUCASUSCENTRAL MID-ATLANTIC RIDGEADRIATIC SEA. ML 2 . 9 (VIE).SAMOA ISLANDS REGIONFOX ISLANDS, ALEUTIAN ISLANDSGREECE -ALBANIA BORDER REGION. MD 3 . 3 (ATH), 2.9 (PDG)NORTHERN ITALY. ML 2 . 7 (VIE).OFF COAST OF CENTRAL CHILE. <GUC>. MD 3 . 5 (GUC) .SOUTH ISLAND, NEW ZEALAND. <WEL> .KODIAK ISLAND REGION. <AEIC> . ML 3 . 1 (AEIC).MID- INDIAN RIDGENEAR COAST OF CENTRAL CHILE. <GUC> . MD 3 . 5 (GUC).SOLOMON ISLANDSOFF COAST OF CENTRAL CHILE. <GUC> . MD 4 . 3 (GUC).GREECE -ALBANIA BORDER REGION. <ATH> . MD 3 . 3 (ATH).OFF COAST OF CENTRAL CHILE. <GUC> . MD 4 . 3 (GUC).NEAR COAST OF GUERRERO, MEXICO. <UNM> . MD 3 . 8 (UNM).UNITED KINGDOM. <BGS>. ML 1 . 7 (BGS) .JAN MAYEN ISLAND REGIONMINDANAO, PHILIPPINE ISLANDSSOUTHERN GREECE. <ATH> . MD 3 . 2 (ATH).NEAR COAST OF CENTRAL CHILE. <GUC> . MD 3 . 8 (GUC).ANDREANOF ISLANDS, ALEUTIAN IS.NORTHERN ITALY. <GEN>. ML 2 . 3 (GEN), 1.8 (LDG).NEAR COAST OF GUERRERO, MEXICO. <UNM> . MD 3 . S (UNM).OFF COAST OF CENTRAL CHILE. <GUC> . MD 3 . 7 (GUC).STRAIT OF GIBRALTAR. <MDD> . mbLg 2.7 (MDD) .GREECE -ALBANIA BORDER REGION. <ATH> . MD 3 . 1 (ATH).NORTHERN ITALY. <GEN> .GREECE. <ATH>. MD 3 . 0 (ATH). Felt at Thessaloniki .

JUN 1999 PAGE 26

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Centroid, Moment Tensor (HRV): Centroid origin tirse 19:36:46.6; Lat 26.46 S; Lon 175.32 W; Dep 41.7; Half- duration 1.0 sec; Principal axes (scale 10**16 }£r.) : (T) Val=4.76. Plg=53, Azm=336; (N) Val=0.00, Plg=25. Azm=208; (P) Val=-4.75, Plg=26, Azm=105; Best double couple: Mo=4.8*10**16 Nm; NP1: Strike=153, Dip=30, Slip=31; NP2: Strike=35, Dip=75, Slip=116.

MINAHASSA PENINSULA, SULAWESITONGA ISLANDSKURIL ISLANDS ,PYRENEES. <LDG>. ML 2.4 (LDG), 2.2 (STR).GUATEMALAOFF COAST OF CENTRAL CHILE. <GUC>. MD 3.3 (GUC).NORTHEASTERN INDIAGUERRERO, MEXICO. <UNM>. MD 3.7 (UNM) .TONGA ISLANDSPAKISTAN. Mw 5.6 (GS), 5.6 (HRV).Moment Tensor (GS): Dep 6; Principal axes (scale 10**17 Nm) : (T) Val=2.72. Plg=59. Azm=201; (N) Val=0.12, Plg=26, Azm=55; (P) Val=-2.84, Plg=15, Azm=317; Best double couple: Mo=2.8*10**17 Nm; NP1: Strike=15, Dip=38, Slip=43; NP2: Strike=248. Dip=65, Slip=119.

Centroid, Moment Tensor (HRV): Centroid origin trae 21:54:14.8; Lat 29.97 N; Lon 69.77 E; Dep 33.0 Fix; Half- duration 1.6 sec; Principal axes (scale 10**17 Nta) : (T) Val=2.24, Plg=55, Azm=218; (N) Val=0.53, Plg=33, Azm=56; (P) Val=-2.77, Plg=8, Azm=320; Best double couple: Mo=2.5*10**17 Nm; NP1: Strike=18, Dip=47, Slip=41; NP2: Strike=257, Dip=61, Slip=129.

0.9 340 FIJI ISLANDS REGION. Mw 6.0 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 22:05:36.7; Lat 17.76 S; Lon 178.17 W; Dep 623.9; Half- duration 2.6 sec,- Principal axes (scale 10**18 Ka) : (T) Val=1.40, Plg=17, Azm=112; (N) Val=-0.10, Plg=16. Azm=17; (P) Val=-1.30, Plg=67, Azm=245; Best double couple: Mo=1.3*10**18 Nm; NPl: Strike=224, Dip=32, Slip=-58; NP2: Strike=8, Dip=63, Slip=-108.

TONGA ISLANDSFRANCE. <LDG>. ML 1.8 (LDG).AEGEAN SEA. <ATH>. MD 3.9 (ATH)TURKEY. <ATH>. MD 3.6 (ATH).SOUTHWESTERN ATLANTIC OCEANCYPRUS REGION. ML 3.6 (CSS)NEAR COAST OF NORTHERN PERUNORTHERN ITALY. <GEN>. ML 1.6 (GEN).FRANCE. <LDG>. ML 2.3 (LDG).FRANCE. <LDG>. ML 2.1 (LDG).MINDANAO, PHILIPPINE ISLANDSFRANCE. <LDG>. ML 1.7 (LDG).SOUTH ISLAND. NEW ZEALAND. <WEL>.NORTHERN PERUNORTHWESTERN BALKAN REGION. ML 1.3 (LJU).TURKEY. <ISK>. MD 2.8 (ISK).LEEWARD ISLANDS. <FDF>. MD 2.9CHILE-ARGENTIKA BORDER REGION.CHIAPAS, MEXICO. <UNM>. MD 4.2OFF EAST COAST OF HONSHU, JAPAN. Felt (I JMA) on Hachijo- jima.

OFF COAST OF CENTRAL CHILE. <GUC>. MD 4.1 (GUC).NORTHWESTERN UZBEKISTANOFF COAST OF CENTRAL CHILE. <GUC>. MD 3.8 (GUC).NORTHERN ITALY. <GEN>. ML 2.0 (GEN). 1.9 (LDG).NORTHWESTERN BALKAN REGION. <ZAG>. ML 1.9 (LJU).FRANCE. <GEN>. ML 2.2 (GEN), 2.2 (LDG).NEW IRELAND REGION, P.N.G.FRANCE. <LDG>. ML 2.1 (LDG).OFF COAST OF CENTRAL AMERICA. MD 4.4 (CASC).GREECE. MD 3.0 (ATH). Felt at Thessaloniki.STRAIT OF GIBRALTAR. <MDD>. mbLg 1.9 (MOD).SAMAR, PHILIPPINE ISLANDSNEAR COAST OF GUERRERO, MEXICO. <UNM>. MD 4.1 (UXX).ALBANIA. MD 3.9 (ATH), 3.9 (PDG).FIJI ISLANDS REGIONWINDWARD ISLANDS. <FDF>. MD 2.8 (TRN).MARIANA ISLAOTSSOUTHERN MID-ATLANTIC RIDGESOUTHERN ALASKA. <AEIC>.CHILE-ARGENTINA BORDER REGION. <GUC>.EASTERN HONSHU, JAPAN. Felt (II JMA) in parts of Summa, Ibaraki, Saitama and Tochigi Prefectures.

TONGA ISLANDS REGION. Mw 5.2 (HRV).Centroid, Mczient Tensor (HRV) : Centroid origin CLne 11:09:14.7; Lat 18.13 S; Lon 172.53 W; Dep 15.C Fix; Half- duration 1.1 sec; Principal axes (scale 10**16 }£r) : (T) Val=5.61. ?lg=0, Azm=118; (N) Val=0.96, Plg=22, Azm=28; (P) Val=-6.57, ?lg=68, Azm=208; Best double couple: Mo=6.1*10*'16 Nm; NPl: Strike=229, Dip=49, Slic=-60; NP2 -. Strikers, Dip=49, Slip=-120.

7 GREECE-. <AT». MD 3 .2 (ATH). Felt at ThessaloniV.. . 4.2 0.4 6 CENTRAL MID-ATLANTIC RIDGE

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JUN 1999

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2.1 (GEN), 1.7 (LDG).

(ISK).3 . 5 (ATH).

<GUC>. MD 2.3 (GUC) .

28 12 58 14.2& 37.150 N 3.700 W 16 28 13 52 23.6& 61.520 N 151.450 W 71

GREECE. <ATH>. MD 3.2 (ATH). F TAJIKISTAN. Felt (III) at TOP FOX ISLANDS, ALEUTIAN ISLAND SAMAR, PHILIPPINE ISLANDS NORTH ISLAND, NEW ZEAV''JD. < NORTHWESTERN UZBEK1ST SPAIN. <MDD>. mbLg MOD TONGA ISLANDS. Mw 5. .!RV) . Centroid, Moment Tens, i (HR\14:01:36.7; Lat 20.27 S; Lcduration 1.0 sec; ?r ~ipalVal=7.76, Plg=62, A- ilO;(P) Val=-6.63, Plg=:. Azm-Mo=7.2*10**16 Nm; NP1: Str. Strike=46, Dip=73, Slip=87

AEGEAN SEA. <ISK>. MD 3.0 (I. SOUTHERN PERU ADRIATIC SEANORTHERN ITALY. <GEN>. ML ANDAMAN ISLANDS, INDIA TONGA ISLANDS SUMBAWA REGION, INDONESIA TURKEY. <ATH>. SOLOMON ISLANDS. Mw 5.2 (HRV).Centroid, Moment Tensor (HRV) : Centroid origin tiir.e 17:56:32.9; Lat 6.40 S; Lon 154.71 E; Dep 118.2; Half- duration 1.0 sec; Principal axes (scale 10**16 Nm) : (T) Val=6.95, Plg=29, Azm=79; (N) Val=2.32, Plg=38, Azm=194; (P) Val=-9.26, Plg=38, Azm=323; Best -. -ble couple: Mo=8.1*10**16 Nm; NP1: Strike=ll6, Dip 39, Slip=-171; NP2: Strike=19, Dip=84, Slip=-51.

CHILE-ARGENTINA BORDER REGION. <GUC>. ME 2.7 (GUC).CHILE-ARGENTINA BORDER REGION. <GUC>. 1C 2.7 (GUC).TURKEY. <ISK>. MD 2.9 (ISK).NORTHERN ITALY. <GEN>. ML 2.3 (LOG), 2.2 (GEN).TURKEY. <ISK>. MD 2.9 (ISK).ALASKA PENINSULA. <AEIC>. ML 2.9 (AEIC).HINDU RUSH REGION, AFGHANISTANVIRGIN ISLANDSFIJI ISLANDS REGIONAEGEAN SEA. MD 4.0 (ATH), 4.0DODECANESE ISLANDS. <ATH>. MDNORTH ATLANTIC OCEANOFF COAST OF CENTRAL AMERICACHILE-ARGENTINA BORDER REGIONFIJI ISLANDS REGIONNORTHWESTERN BALKAN REGION. ML 1.9 (VIE).OFF COAST OF GUERRERO, MEXICO. <UNM>. MD 4.1 (UNM)NEAR COAST OF CENTRAL CHILEUNIMAK ISLAND REGION. <AEIC>. ML 3.1 (AEIC).FIJI ISLANDS REGIONNORTHERN CHILETURKEY. <ISK>. MD 3.0 (ISK).OFF COAST OF CENTRAL CHILE. <GUC>. MD 4.1 (GUC).OAXACA, MEXICO. <UNM>. MD 4.1 (UNM).TURKEY. <ISK>. MD 3.0 (ISK).ALBANIA. <PDG>. MD 2.8 (PDG).NEAR COAST OF GUERRERO, MEXICO. <UNM>EASTERN IDAHO. <USBR>. MD 2.8 (USER).PUERTO RICO REGION. <MPR>. MD 2.6 (MPR).CENTRAL ALASKA. <AEIC>.AEGEAN SEA. <ATH>. MD 3.6 (ATH), 3.3 (ISK).NORTH ISLAND, NEW ZEALAND. <WEL>.IRIAN JAYA REGION, INDONESIANEAR COAST OF CENTRAL CHILE. <GUC>AEGEAN SEA. <ATH>.SAMAR, PHILIPPINE ISLANDSPERU-BOLIVIA BORDER REGIONAEGEAN SEA. <ATH>. MD 3.7 (ATH), 3.4 (ISK)TURKEY. <ISK>. MD 2.7 (ISK).SAN JUAN PROVINCE, ARGENTINAFRANCE. <GEN>. ML 2.4 (GEN),PANAY, PHILIPPINE ISLANDSUNIMAK ISLAND REGION. <AEIC>CALIFORNIA-NEVADA BORDER REGION.CALIFORNIA-NEVADA BORDER REGION. (BRK).

EASTERN NEW GUINEA REG., P.N.G.CHILE-ARGENTINA BORDER REGIONSOUTH OF FIJI ISLANDSVANCOUVER ISLAND REGION. ML 4.6 (PGC).MINDANAO, PHILIPPINE ISLANDSAEGEAN SEA. <ISK>. MD 3.7 (ATH), 3.2 (ISK).SANTA CRUZ ISLANDS REGION. Mw 5.2 (HRV).Centroid, Moment Tensor (HRV): Centroid origin time 12:20:30.2; Lat 10.87 S; Lon 164.67 E; Dep 24.0; Half- duration 1.0 sec; Principal axes (scale 10**16 *' .} : (T) Val=7.45, Plg=10, Azm=141; (N) Val = 1.97, Plg=7S, .-.zrr.= 25 (P) Val=-9.42, Plg=5, Azm=232; Best double couple: Mo=8.4*10**16 Nm; NP1: Strike=277, Dip=79, Slip = 4; NF2: Strike=186, Dip=87, Slip=169.

SPAIN. <MDD>. mbLg 1.9 (MOD).SOUTHERN ALASKA. <AEIC>.

MD 3.9 (UNM).

MD 3.4 (GUC).

, MD 3.9 (GUC). 1.9 (LDG).

. ML 2.7 (AEIC).<GM-P>. MD 2.8 <GM-P>. MD 2-9 (GX). KL 3.0

JUN 1999 PAGE 28

28 13 53 34.lt 40.688 N 29.842 E 7 9 TURKEY. <ISK>. MD 3.2 (ISK).28 14 OS 37.lt 60.280 N 151.040 W 47 2.9 50 KENAI PENINSULA, ALASKA. <AEIC>. ML 3.3 (AEIC) . 3.3 (PMR) .28 14 38 16.9t 34.533 N 32.068 E 25 6 CYPRUS REGION. <CSS>. ML 2.7 (CSS).28 15 IS 3£.5& 43.100 N 0.300 W 3 7 PYRENEES. <LDG>. ML 2.5 (LOG).28 15 26 II.9t 43.120 N 0.320 W 5 12 PYRENEES. <STR>. ML 2.9 (LOG), 2.5 (STR).28 16 05 55.7* 44.769 N 24.968 W 10 G 4.0 1.4 39 NORTHERN MID-ATLANTIC RIDGE28 16 09 27.2 44.698 N 25.229 W 10 G 4.1 1.3 48 NORTHERN MID-ATLANTIC RIDGE28 16 15 46. 6t 37.140. N 4.280 W 10 8 SPAIN. <MDD>. mbLg 2.0 (MOD).28 16 29 38. Ot 44.846 N 7.541 E 12 25 NORTHERN ITALY. <GEN>. ML 2.7 (GEN), 2.5 (LOG).28 16 42 00.6t 36.550 N 25.540 E 5 6 DODECANESE ISLANDS. <ATH>, ML 3.3 (ATH).28 18 46 37.6t 17.349 N 99.732 W 78 6 GUERRERO, MEXICO. <UKM>. MD 3.6 (UNM) .28 18 50 47.9t-35.517 S 71.530 W 108 12 CENTRAL CHILE. <GUC>. MD 3.0 (GUC).28 19 06 06.3t 38.210 N 26.890 E 26 5 AEGEAN SEA. <ATH>. MD 3.6 (ATH).28 19 07 00.1 47.382 N 9.318 E 5 G 1.1 18 GERMANY. ML 2.5 (VIE). 2.3 (LOG), 2.2 (STR).28 19 22 29.6* 6.540 S 148.579 E 53 * 4.4 0.8 13 NEW BRITAIN REGION, P.N.G.28 19 23 01.lt 38.170 N 26.930 E 36 6 AEGEAN SEA. <ATH>. MD 3.6 (ATH).28 19 47 16.9t 33.446 S 72.236 W 6 11 OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.3 (GUC).28 20 05 41.3* 18.897 N 120.902 E 33 N 0.6 5 LUZON, PHILIPPINE ISLANDS28 20 33 38.9* 7.053 S 129.483 E 100 ? 4.3 0.4 8 BANDA SEA28 20 42 04.4t 15.967 N 98.735 W 12 9 OFF COAST OF GUERRERO. MEXICO. <UNM>. MD 3.7 (UNM).28 20 46 03.8t 17.261 N 96.046 W 117 8 OAXACA, MEXICO. <UNM>. MD 3.9 (UNM).28 20 46 28.9t 40.736 N 29.795 E 12 5 TURKEY. <ISK>. MD 2.6 (ISK).28 21 23 58.1 3.753 S 152.065 E 264 4.8 0.9 82 NEW IRELAND REGION, P.N.G.28 23 12 08.7 2.682 N 96.372 E 33 N 4.9 0.8 25 NORTHERN SUMATERA, INDONESIA28 23 38 28.0* 21.410 N 99.478 E 33 N 4.84.1 1.4 52 MYANMAR-CHINA BORDER HEGION29 00 29 40.4 2.565 N' 128.566 E 228 D 5.0 1.0 75 HALMAHERA, INDONESIA. Mw 5.2 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 00:29:44.8; Lat 2.75 N; Lon 128.33 E; Dep 224.5; Half- duration 1.0 sec,- Principal axes (scale 10**16 Nm) : (T) Val=7.72. Plg=8, Azns=159; (N) Val=0.88, Plg=32, Azm=64; (P) Val=-8.59, Plg=57. Azm=262; Best double couple: Mo=8.2*10**16 Nm; NP1: Strike=281, Dip=46, Slip=-43; NP2: Strike=44, Dip=61. Slip=-127.

29 00 41 47.9t 38.043 N 28.885 E 8 5 TURKEY. <ISK>. MD 3.1 (ISK).29 00 54 38.4t 37.737 N 30.878 E 9 4.2 81 TURKEY. <ISK>. ML 4.3 (CSS). MD 4.1 (ISK).29 00 57 56.9 30.010 N 69.372 E 33 N 4.9 4.3 0.9 92 PAKISTAN. Mw 5.0 (HRV).

Centroid, Moment Tensor (HRV): Centroid origin time 00:57:58.6; Lat 30.02 N; Lon 69.76 E; Dep 33.0 Fix; Half- duration 1.0 sec,- Principal axes (scale 10**16 Nm) : (T) Val=3.25, Plg=84, Aa=n=254; (N) Val=-0.06, Plg=6, Azm=74; (P) Val=-3.19, Plg=0. Azm=164; Best double couple: Mo=3.2*10**16 Nm; NF1: Strike=259, Dip=45, Slip=98; NP2: Strike=68, Dip=45, Slip=82.

29 01 10 43.4t 39.239 N 27.685 E 6 11 TURKEY. <ISK>. MD 3.6 (ATH), 3.2 (ISK).29 01 17 53.0? 30.32 N 140.26 E 33N3.9 0.5 8 SOUTH OF HONSHU, JAPAN29 01 26 52.6? 40.39 N 126.09 W 10 G 1.0 10 OFF COAST OF NORTHERN CALIFORNIA. ML 3.0 (GS) .29 01 34 21.1* 12.950 N 124.944 E 33 N 1.0 8 SAMAR, PHILIPPINE ISLANDS29 01 37 28.2t 32.574 N 116.172 W 2 24 CALIF.-BAJA CALIF. BCHDER REGION. <PAS-P>. ML 3.2 (PAS). MD

3.2 (ECX).29 01 50 25.9t 37.030 N 5.520 WO 9 SPAIN. <MDD>. mbLg 2.3 (MOD).29 02 04 53.7t 39.059 N 26.647 E 10 G 9 TURKEY. <ISK>. MD 3.6 (ATH), 3.2 (ISK).29 02 21 04.5& 44.660 N 7.174 E 11 11 NORTHERN ITALY. <GEN>. ML 2.0 (GEN).29 02 28 20.2t 18.589 N 66.686 W 69 5 PUERTO RICO REGION. <MPR>. MD 2.6 (MPR).29 03 35 58.4 36.375 N 71.179 E 103 D 4.7 1.0 56 AFGHANISTAN-TAJIKISTAN BORD REG.29 03 59 07.5t 35.036 N 117.009 W 5 28 CENTRAL CALIFORNIA. <PAS-P>. ML 2.9 (PAS).29 04 32 52.9 10.841 S 164.739 E 33 N 4.7 4.6 0.9 36 SANTA CRUZ ISLANDS REGION29 04 51 43.Ot 48.920 N 123.050 W 20 55 VANCOUVER ISLAND REGION. <PGC-P>. ML 2.9 (PGC). MD 2.7

(SEA). Felt in the Delta and Tsawwassen areas of mainland British Columbia.

29 05 12 08.9t 39.256 N 27.663 E 8 5 TURKEY. <ISK>. MD 3.0 (ISK).29 05 50 28.9 9.468 S 147.854 E 33 N 5.8 5.4 0.9 219 EASTERN NEW GUINEA RS3., P.N.G. Mw 5.7 (GS), 5.7 (HRV). Me

5.8 (GS) . ML 6.0 (F!*3) . Felt at Port Moresby. Broadband Source Parameters (GS): Dep 13; NPl: Strike=315, Dip=45, Slip=-105; NP2: Strike=156, Dip=47, Slip=-75; Radiated energy 1.0*10**13 Nm.

Moment Tensor (GS): Dep 12; Principal axes (scale 10**17 Nm): (T) Val=3.39, Plg=l. Azm=146; (N) Val=0.17, Plg=7, Azm=236; (P) Val=-3.56, Plg=83, Azm=50; Best double couple: Mo=3.5*10**17 Nm; NPl: Strike=228, Dip=45, Slip=-100; NP2: Strike=63, Dip=46, Slip=-80.

Centroid, Moment Tensor (HRV): Centroid origin time 05:50:11.6; Lat 9.55 S; Lon 148.25 E; Dep 15.0 Bdy; Half- duration 1.7 sec; Principal axes (scale 10**17 Nm): (T) Val=2.44, Plg=l, Azs=142; (N) Val=1.92, Plg=12, Azm=232; (P) Val=-4.37. Plg=7B, Azm=45; Best double couple: Mo=3.4*10**17 Nm; N?i: Strike=219, Dip=45, Slip=-107; NP2: Strike=63, Dip=48, SIip=-74.

Scalar Moment (PPT): Xo=7.7*10**17 Nm.29 06 06 :2.8t 32.581 N 116.167 W 3 21 CALIF. -BAJA CALIF. BORDER REGION. <PAS-P>. ML 3.1 (PAS). MD

3.2 (ECX).29 06 32 28.6t 36.440 N 4.320 W 68 6 STRAIT OF GIBRALTAR. <MDD>.29 06 34 45.Ot 16.221 N 61.432 W 16 4 LEEWARD ISLANDS. <FDr>. MG 2.5 (FDF).29 07 16 46.1* 38.507 N 73.214 E 33 N 4.0 1.3 9 TAJIKISTAN-XINJIANG BORDER REG.29 07 26 11.2? 55.49 N 162.34 E 33 N 4.7 1.2 7 NEAR EAST COAST OF KAMCHATKA29 07 45 -3.8 16.747-N 61.762 W 10 G 1.2 12 LEEWARD ISLANDS. MD 2 .2 (TRN).29 07 48 15.4t 59.670 N 153.100 W 104 24 SOUTHERN ALASKA. <AErC>.29 07 4S 54.0* 38.155 N 71.999 E 33 N 3.9 1.4 10 AFGHANISTAN-TAJIKISTA-'C BORD REG.29 07 52 43.2* 9.510 S 155.396 E 33 N 4.5 0.8 14 D' ENTRECASTEAUX ISLAJOS REGION29 08 04 23.1 38.311 N 72.860 E 33 N 5.1 4.6 1.0 118 TAJIKISTAN. Mw 5.3 (HHV).

Centroid, Moment Tenser (HRV): Centroid origin time 08:04:08.2; Lat 38.47 N; Lon 73.10 E; Dep 55.9; Half- duration 1.2 sec; Principal axes (scale 10**17 Nm): (T) Val = l.ll, Plg=13, A"=257; (N) Val = -0.14, Plg=67, Azm=19;

JUN 1999

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(P) Val=-0.97, Plg=19, Azm=163; Best double couple: Mo=1.0*10**17 Nm; NP1: Strike=301, Dip=68, Slip=-176; NP2: Strike=209, Dip=86, Slip=-22.

CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.3 (GUC).TURKEY. <ISK>. MD 3.4 (ISK).TURKEY. <ISK>. MD 3.0 (ISK).NORTHERN ITALY. <GEN>. ML 1.5 (GEN).OFF COAST OF GUERRERO, MEXICO. MD 4.1 (UNM).CHILE-ARGENTINA BORDER REGION. <GUC>.TAJIKISTANSOUTHERN PERU. Mw 5.3 (HRV). Felt (III) at Chuquibamba and (II) at Areguipa.

Centroid, Moment Tensor (HRV): Centroid origin time 10:55:12.1; Lat 15.97 S; Lon 72.14 W; Dep 135.1; Half- duration 1.0 sec; Principal axes (scale 10**17 Nm) : (T) Val=1.08, Plg=37, Azm=101; (N) Val=-0.01, Plg=49, Azm=314; (P) Val=-1.07, Plg=16, Azm=204; Best double couple: Mo=l.l*10**17 Nm; NP1: Strike=249, Dip=52, Slip=16; NP2: Strike=149, Dip=77, Slip=140.

NORTHWESTERN BALKAN REGION. <PDG>. MD 2.0 (PDG).SOUTHERN ALASKA. <AEIC>.WYOMING. <USBR>. MD 3.1 (USER). MLSOUTHERN CALIFORNIA. <PAS-P>. ML 3. Angeles area from Glendale and West Hollywood south as far as northern Orange County including Cypress, Hawthorne, Long Beach, Los Angeles, Pasadena, Seal Beach and West Los Angeles.LUZON, PHILIPPINE ISLANDSVANCOUVER ISLAND REGION. <PGC-P>. ML 2.7 (PGC). Felt in the Delta and Tsawwassen areas of mainland British Columbia.SOUTHERN ALASKA. <AEIC>.NEAR COAST OF CENTRAL CHILE. <GUC>. MD 2.2 (GUC).TURKEY. <ISK>. MD 2.9 (ISK).TURKEY. <ISK>. MD 3.7 (ATH), 3.4 (ISK).GREECE. ML 4.4 (ATH).NEAR COAST OF CENTRAL CHILE. <GUC>. MD 3.1 (GUC).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.5 (GUC).CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2.3 (GUC).LAKE BAYKAL REGION, RUSSIA. Felt (III) at Severobaykalsk.CHILE-ARGENTINA BORDER REGION. <GUC>.TURKEY. <ISK>. MD 2.9 (ISK).CENTRAL CALIFORNIA. <GM-P>. ML 3.3 (GM), 3.4 (BRK).TURKEY. <ISK>. MD 2.9 (ISK).NORTHERN MOLUCCA SEAD'ENTRECASTEAUX ISLANDS REGIONROMANIASAN JUAN PROVINCE, ARGENTINA. MD 4.2 (GUC).NEAR COAST OF CENTRAL CHILE. <GUC>.AEGEAN SEA. <ATH>. MD 3.8 (ATH), 3.5 (ISK).SOUTHERN ALASKA. <AEIC>.NEAR SOUTH COAST OF FRANCE. <LDG>. ML 2.7 (LOG), 2.4 (STR).KENAI PENINSULA, ALASKA. <AEIC>. ML 2.5 (AEIC).AFGHANISTAN-TAJIKISTAN BORD REG. Mw 5.7 (GS), 5.7 (HRV). Me 5.7 (GS). Felt (V) at Khorugh and (IV) at Dushanbe, Tajikistan; (III) at Toshkent, Uzbekistan. Also felt at Kabul, Afghanistan.Broadband Source Parameters (GS): Dep 189; NP1: Strike=60, Dip=50. Slip=75; NP2: Strike=263, Dip=42, Slip=107; Radiated energy 6.8*10**12 Nm.

Moment Tensor (GS): Dep 184; Principal axes (scale 10**17 Nm): (T) Val=3.86, Plg=78, Azm=266; (N) Val=-0.72, Plg=10, Azm=55; (P) Val=-3.14, Plg=6, Azm=147; Best double couple: Mo=3.5*10**17 Nm; NP1: Strike=248, Dip=40, Slip=106; NP2: Strike=47, Dip=52, Slip=77.

Centroid, Moment Tensor (HRV): Centroid origin time 23:18:06.8; Lat 36.50 N Fix; Lon 70.96 E Fix; Dep 188.1; Half-duration 1.6 sec; Principal axes (scale 10**17 Nm) : (T) Val=3.97, Plg=81, Azm=271; (N) Val=-0.99, Plg=9, Azm=90; (P) Val=-2.98, Plg=0, Azm=180; Best double couple: Mo=3.5*10**17 Nm; NP1: Strike=279, Dip=45, Slip=102; NP2: Strike=81, Dip=46, Slip=78.

VANUATU ISLANDS REGIONXIZANGUNITED KINGDOM. <BGS>. ML 1.3 (BGS).VANUATU ISLANDSTURKEY. <ISK>. MD 2.9 (ISK).SWITZERLAND. <FBB>. ML 2.5 (LOG), 2.3 (STR), 2.1 (FBB).TURKEY. <ISK>. MD 3.0 (ISK).NORTHWESTERN BALKAN REGION. <PDG>. MD 1.3 (PDG).NEAR SOUTH COAST OF FRANCE. <LDG>. ML 2.8 (LDG), 2.7 (STR).GERMANY. <STR>. ML 1.9 (STR).OFF COAST OF CENTRAL CHILE. <GUC>. MD 3.4 (GUC).VIRGIN ISLANDS. <MPR>. MD 4.1 (MPR).VIRGIN ISLANDS. <MPR>. MD 3.8 (MPR).LEEWARD ISLANDS. <TRN>. MD 3.4 (TRN).TURKEY. <ISK>. MD 3.7 (ISK).TALAUD ISLANDS, INDONESIA. Mw 5.4 (GS), 5.4 (HRV).Moment Tensor (GS): Dep 65; Principal axes (scale 10**17 Nm): (T) Val=1.21. Plg=66, Azm=132; (N) Val=-0.01, Flg=0, Azm=223; (F) Val=-1.20, Plg=24, Azm=313; Best double couple: Mo=l.2*10**17 Nm; NP1: Strike=44, Dip=21, Slip=91; NF2: Strike=223, Dip=69, Slip=90.Centroid, Moment Tensor (HRV): Centroid origin time

JUK 1999 PAGE 30

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06:02:56.2; Lat 5.05 N; Lon 127.55 E; Dep 98.1; Half-duration 1.2 sec; Principal axes (scale 10**17 Nm) : (T)Val=1.24, Plg=65, Azm=169; (N) Val=0.23. Plg=16, Azm=41;(P) Val=-1.47, FIg=19, Azm=306; Best double couple:Mo=1.4*10**17 Nm; NP1: Strike=ll, Dip=29, Slip=56; KP2 :Strike=229, Dip=c£, Slip=108.SANTA CRUZ ISLANDSTIMOR REGION, INDONESIA. Felt (II) at Kupang .GREECE-ALBANIA BORDER REGION. <ATH> . MD 3 . 1 (ATH) .CENTRAL ALASKA. <AEIC>.VANUATU ISLANDSTURKEY. <ISK>. MD 2.7 (ISK).POLAND. ML 2.9 (CLL) .AEGEAN SEA. MD 3 . 5 (ATH), 3.3 (ISK) .EASTERN NEW GUINEA REG., P.N.G. ML 4 . 0 (PMG) .CHILE-ARGENTINA BORDER REGION. <GUC>. MD 2 . 9 (GUC) .VIRGIN ISLANDS. <K?R>. MD 4 . 2 (MPR) .XIZANGAFGHANISTAN-TAJIKISTAN BORD REG.NORTHWESTERN BALKAN REGION. <PDG>. MD 1 . 4 (PDG) .NORTHERN COLOMBIACYPRUS REGION. ML 3.9 (Gil), 3.5 (CSS) . MD 3.8 (ISK).VANUATU ISLANDS REGIONNORTHERN ITALY. ML 2 . 9 (VIE).UTAH. <SLC-P>. ML 3.7 (SLC) . Felt in parts of Salt Lake andSummit Counties including Holladay, Park City, Salt LakeCity and Sandy.

CHILE-BOLIVIA BORDER REGIONSOUTHERN ALASKA. <AEIC>.POLAND. ML 3.1 (VIE).NORTHERN ITALY. ML 3 . 0 (VIE).CYPRUS REGION. ML 2 . 9 (CSS).VOLCANO ISLANDS REGIONMONA PASSAGE. <MPR>. MD 4 . 0 (MPR).TURKEY. <ISK>. MD 3 . 1 (ISK).TURKEY. <ISK>. MD 2.8 (ISK).NORTHERN ITALY. ML 4.1 (GRF) , 3.6 (FUR), 3.5 (LDG) , 3-4(FBB) .

NORTHWESTERN BALKAN REGION. ML 1 . 7 (VIE).NEAR SOUTH COAST OF FRANCE. <LDG>. ML 2 . 3 (LDG), 2.3 (STR) .NORTHERN ITALY. <GEN>. ML 2.2 (GEN).STRAIT OF GIBRALTAR. <MDD>. mbLg 2.6 (MOD).SOUTHERN GREECE. <ATH>. MD 2 . 9 (ATH).LEEWARD ISLANDS. <FDF>. MD 3.3 (TRN) .LEEWARD ISLANDS. <FDF>. MD 3.6 (TRN).TONGA ISLANDSAUSTRIA. ML 1.1 (VIE).PYRENEES. <STR>. KL 2 . 5 (LDG), 2.3 (STR). mbLg 2.3 (KDD) .

Macroseismic information for the Mexican earthquake of June 15 at 20:42 UTC was obtained from:

Jimenez, J., J. Villarreal, M. Centeno, B. Gonzalez, J. Correa, C. Acevedo and I. Salazar (1999). Tehuacan, Mexico, Earthquake of June 15. 1999, Seismological Research Letters, v. 70, no. 6, pp. 698-704.

Compiled by John J. Bellini, Pamela J. Benfield. Don L. Blakeman, Charles G. Bufe. George L. Choy, Stuart K. Koyanagi, Brian C. Lassige, Alena L. Leeds, John H. Minsch, Waverly J. Person, Bruce W. Presgrave, Stuart A. Sipkin, William K. Smith, Trina F. Vithayathil and Madeleine D. Zirbes.

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u.s. department of the interior u.s ... alas! tcei3a islands northern chilj cestral alask; sa5t juan...

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