seismic monitoring in hawaii kanoa koyanagi noaa pacific tsunami warning center...
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Seismic Monitoring in HawaiiSeismic Monitoring in Hawaii
Kanoa KoyanagiKanoa Koyanagi
NOAA Pacific Tsunami Warning CenterNOAA Pacific Tsunami Warning Center
[email protected]@noaa.gov
Seismic Network OperatorsSeismic Network OperatorsNOAA Pacific Tsunami Warning Center (PTWC)NOAA Pacific Tsunami Warning Center (PTWC)• Established in 1949 after the 1946 Aleutian Islands tsunami that Established in 1949 after the 1946 Aleutian Islands tsunami that
devastated Hilo, Hawaii.devastated Hilo, Hawaii.• Operates 17 seismic stations throughout Hawaii.Operates 17 seismic stations throughout Hawaii.
USGS Hawaiian Volcanoes Observatory (HVO)USGS Hawaiian Volcanoes Observatory (HVO)• Established in 1912 to monitor Hawaii’s volcanoes. Operated Established in 1912 to monitor Hawaii’s volcanoes. Operated
continuously by the U.S. Geological Survey since 1947.continuously by the U.S. Geological Survey since 1947.• Operates 60+ seismic stations on the Island of Hawaii.Operates 60+ seismic stations on the Island of Hawaii.
USGS National Strong Motion Project (NSMP)USGS National Strong Motion Project (NSMP)• Established in 1932 by the engineering seismology community Established in 1932 by the engineering seismology community
to record strong motion ground motion in urbanized areas.to record strong motion ground motion in urbanized areas.• Operates 700+ stations in the U.S., 32 throughout Hawaii.Operates 700+ stations in the U.S., 32 throughout Hawaii.
IRIS Global Seismic Network (GSN)IRIS Global Seismic Network (GSN)• Established in 1984 as a joint partnership between the National Established in 1984 as a joint partnership between the National
Science Foundation’s IRIS Consortium and the USGS. Science Foundation’s IRIS Consortium and the USGS. • Operates 150+ high quality broadband stations, 2 in Hawaii.Operates 150+ high quality broadband stations, 2 in Hawaii.
December 2011
PTWC Field HardwarePTWC Field Hardware
Broadband + Strong-Broadband + Strong-Motion Sites:Motion Sites:all of the following:all of the following:
• Streckeisen STS-2 Streckeisen STS-2 broadband seismometerbroadband seismometer
• Kinemetrics EpiSensor Kinemetrics EpiSensor ES-T accelerometerES-T accelerometer
• Kinemetrics Q330 Kinemetrics Q330 digitizerdigitizer
• Kinemetrics Marmot Kinemetrics Marmot field serverfield server
Strong-Motion + Strong-Motion + Short-Period Sites:Short-Period Sites:eithereither
• Kinemetrics Basalt Kinemetrics Basalt digitizer/field server with digitizer/field server with embedded EpiSensor embedded EpiSensor ES-T accelerometerES-T accelerometer
oror
• NetDAS digitizer/field NetDAS digitizer/field server with Metrozet TSA-server with Metrozet TSA-100S accelerometer100S accelerometer
++
• Some sites with Some sites with additional GeoTech S-13 additional GeoTech S-13 short-period vertical short-period vertical seismometersseismometers
Site PhotosSite Photos
Combination of existingCombination of existingvaults with newlyvaults with newlyconstructed vaults.constructed vaults.
Mauna Loa, HawaiiMauna Loa, Hawaii
Kekaha, KauaiKekaha, Kauai
Haleakala, MauiHaleakala, Maui
Seismic Data AcquisitionSeismic Data Acquisition
AntelopeAntelope• Import Q330 (orb2orb)Import Q330 (orb2orb)
• Data export to IRIS Data export to IRIS (orb2orb ?)(orb2orb ?)
EarthwormEarthworm• Import Basalt Import Basalt
(slink2ew), NetDas (slink2ew), NetDas (grf2ew)(grf2ew)
• Data exchange with Data exchange with HVO (import/export), HVO (import/export), IRIS (liss2ew), NSMPIRIS (liss2ew), NSMP
Seismic Data ProcessingSeismic Data Processing
MagnitudeMagnitude• SPLERT Pmag (for paging), SPLERT Pmag (for paging),
eqcoda (MD), localmag (ML)eqcoda (MD), localmag (ML)
• Mwp processing for events Mwp processing for events larger than ~M6.0larger than ~M6.0
Performance GoalPerformance Goal• To issue local Hawaii tsunami To issue local Hawaii tsunami
bulletins within 90 seconds of bulletins within 90 seconds of origin time.origin time.
LocationLocation
• SPLERT (System for Processing Local Earthquakes in Real Time) – an SPLERT (System for Processing Local Earthquakes in Real Time) – an Earthworm-based legacy systemEarthworm-based legacy system
• Earthworm v7.5 – eq_assemble and eqproc, pick_ew, binder, hyp2000Earthworm v7.5 – eq_assemble and eqproc, pick_ew, binder, hyp2000
PTWC Data at IRIS DMCPTWC Data at IRIS DMC
Data exported to and Data exported to and archived by the IRIS DMC archived by the IRIS DMC since September 2011.since September 2011.
MahaloMahalo(Thank You)(Thank You)