disaster preparedness: volcanic eruption
TRANSCRIPT
VOLCANIC ERUPTIONS
VOLCANIC ERUPTIONS• When pressure builds up within a volcano's molten rock, it has
the potential to erupt, sending forth lava flows, poisonous gases and flying rock and ash that can sometimes travel hundreds of miles downwind.
• Suddenly, the top of a mountain blows off. A ball of fire goes up into the air. Dark clouds of dust, ash, and cinders cover the sky. Rivers of fire pour down the sides of the mountain. This is what can happen when a volcano erupts. Erupting volcanoes have killed thousands of people. The dust and ash have buried whole towns.
WHAT TO DO
BEFOREA VOLCANICERUPTION
#1
• Learn about your community warning systems and emergency plans.
WHAT TO DO
BEFORE A VOLCANIC ERUPTION
#2
• Have disaster supplies on hand: Flashlight and extra batteries, First aid kit and manual, Emergency food and water, Essential medicines, Sturdy shoes
• Also add a pair of goggles and disposable breathing masks
WHAT TO DO
BEFORE A VOLCANIC ERUPTION
#3
• Keep a roll of plastic wrap and packing tape so you can wrap and protect electronics and appliances from ash.
WHAT TO DO
BEFORE A VOLCANIC ERUPTION
#4
•Be prepared for the hazards that can accompany volcanoes:– Mudflows and flash floods
– Landslides and rockfalls
– Earthquakes
– Ashfall and acid rain
– Tsunamis
WHAT TO DO
BEFORE A VOLCANIC ERUPTION
#5
• Evaluate sites for risk of volcanic disasters before even putting up structures in these sites. WHAT TO DO
BEFORE A VOLCANIC ERUPTION
#6
• Reinforce existing building structures and build protective works such as dikes to deflect lava and lava flow. WHAT TO DO
BEFORE A VOLCANIC ERUPTION
#7
• Have an emergency disaster plan in place especially for evacuation and communication. WHAT TO DO
BEFORE A VOLCANIC ERUPTION
WHAT TO DO
DURINGA VOLCANICERUPTION
#1
• Listen to and heed the warnings given. Follow the evacuation order issued by authorities. WHAT TO DO
DURING A VOLCANIC ERUPTION
• Be aware of mudflows!Mudflows can move faster than you can walk or run. Look upstream before crossing a bridge, and do not cross the bridge if a mudflow is approaching.
#2
WHAT TO DO
DURING A VOLCANIC ERUPTION
#3
• Stay Away from the area during volcanic activity.
WHAT TO DO
DURING A VOLCANIC ERUPTION
#4
• Cover your nose with a wet piece of cloth so that you will not inhale the smoke.
WHAT TO DO
DURING A VOLCANIC ERUPTION
#5
• Cover your eyes from dust and smoke.
WHAT TO DO
DURING A VOLCANIC ERUPTION
#6
• Evacuate from the place as soon as the authorities tell you to do so. Stay out of the area defined as a restricted zone by government officials.
WHAT TO DO
DURING A VOLCANIC ERUPTION
#7
IF INDOORS,
• close all window, doors, and dampers to keep volcanic ash from entering.
• Put all machinery inside a garage or barn to protect it from volcanic ash.
• Bring animals and livestock into closed shelters to protect them from breathing volcanic ash.
WHAT TO DO
DURING A VOLCANIC ERUPTION
#8
IF TRAPPED OUTDOORS,
– Seek shelter indoors.
– If caught in a rock fall, roll into a ball to protect your head.
– If caught near a stream, be aware of mudflows. Move upslope, especially if you hear the roar of a mudflow.
WHAT TO DO
DURING A VOLCANIC ERUPTION
#9
•Protect yourself during ash fall:– Wear long-sleeved shirts and long pants.
– Use goggles to protect your eyes.
– Use a dust mask or hold a damp cloth over your face to help breathing.
– Keep car or truck engines off.
WHAT TO DO
DURING A VOLCANIC ERUPTION
WHAT TO DO
AFTERA VOLCANICERUPTION
There is still danger after an eruption even if there is no flowing lava. The fact is, it may take years for the environment to recover from the changes caused by the volcano. And, ongoing tremors and further eruptions may make the area uninhabitable for a long time. In the short-term, recovery and clean-up includes:
#1
• Help people requiring special assistance like the infants, elderly, and the disabled.
WHAT TO DO
AFTER A VOLCANIC ERUPTION
#2
• Stay inside and listen for volcano information on your radio or television
WHAT TO DO
AFTER A VOLCANIC ERUPTION
#3
• Minimize your movements and keep all windows and doors closed.
WHAT TO DO
AFTER A VOLCANIC ERUPTION
#4
• Unless advised to evacuate, stay indoors and wear a face mask to protect your lungs; wear glasses to protect you eyes.
WHAT TO DO
AFTER A VOLCANIC ERUPTION
#5
• When outdoors or when evacuating, cover your mouth and nose; wear goggles to protect your eyes WHAT TO DO
AFTER A VOLCANIC ERUPTION
#6
• Keep your skin covered with long pants, long-sleeved shirt and hat to avoid irritation from ash. WHAT TO DO
AFTER A VOLCANIC ERUPTION
#7
• Avoid driving after heavy ash fall. Driving will stir up more ash that can clog engines and stall vehicles.
WHAT TO DO
AFTER A VOLCANIC ERUPTION
#8
• If you have a respiratory ailment, avoid contact with any amount of ash. Stay indoors until local health officials advise it is safe to go outside.
WHAT TO DO
AFTER A VOLCANIC ERUPTION
#9
• Avoid areas where there might be volcanic ash fall. Volcanic ash can cause respiratory ailments. WHAT TO DO
AFTER A VOLCANIC ERUPTION
#10
• Remove ash from roofs. Volcanic ash is heavy especially when wet and can cause roofs to collapse. WHAT TO DO
AFTER A VOLCANIC ERUPTION
• When animals like dogs behave abnormally, there's probably a Volcanic Eruption taking place.
• Get your supplies ready when the tip above is happening.
• Materials that is given off by a volcano is extremely hot, be careful.
• Living near a volcano is very dangerous and had a high risk that it will erupt, especially if it is an active volcano. Houses near Mt. Mayon
in the Philippines (active volcano)
• To minimize mudflows, refrain from deforesting the slopes of the volcano.
• Comply strictly with PHILVOLCS prohibition against human settlement in Permanent Danger Zones or areas within 4-6 km radius from the summit of active volcanoes. Also, heed warnings and orders for evacuation issued by PHILVOLCS and the Disaster Coordinating councils (DCCs) in times of volcanic unrest.
• Construct earthquake-resistant structures areas near active volcanoes.
The beautifully symmetrical MayonVolcano is the most prominent landform and most famous symbol of Albay and the Bicol Region. It is located 15 kilometersnorthwest of Legazpi City. Here are some interesting facts about Mayon Volcano:
MAYON VOLCANOLocation: AlbayElevation: 2,462 metersBase Diameter: 20 kmBase Circumference: 62.8 km encompassing the towns of Camalig, Malilipot and Sto. DomingoArea: 314.1 square kilometers
MAYON VOLCANOType of Volcano: Stratovolcano
Tectonic Setting: Bicol Volcanic Chain (including Mt. Isarog and Mt. Iriga in Camarines Sur, Mt. Malinao and Mt. Masaraga in Albay and Mt. Bulusan in Sorsogon)
MAYON VOLCANOVOLCANIC ACTIVITY:
Number of Historical Eruptions: 48Type of Hazards:1. Airfall tephra2. Lava flows3. Pyroclastic flows4. Lahars
Permanent Danger Zone: six (6) km radius from the summit
MAYON VOLCANO
The most destructive eruption came in
February 1841 when lava flows buried a town and
killed 1,200 people.
MAYON VOLCANO
From June 1928 Mount Mayonerupted over a period of about four
months.
It was reported at the time that three cubic miles of lava ran down the side of the volcano during that eruption and a large ravine on the side of the mountain was completely filled in.
MAYON VOLCANOIn the Philippines, impressive volcano Mayon is in full eruption and on Dec 29 dropped large amounts of lava again, causing panic among locals and worrying experts.The Philippines’ most active volcano spewed ash as high as 500 meters and burning rocks and mud a kilometer down its slopes. More than 20,000 people have evacuated homes in the Philippines after lava and ash flowed from the volcano. Officials raised Mayon’s alert to level 3 meaning sudden hazardous explosions were likely.
SOURCES:• http://www.wikihow.com/Be-Ready-in-a-Volcanic-
Eruption• http://wowlegazpi.com/mayon-volcano-
interesting-facts/• http://m24digital.com/en/2009/12/16/the-
philippines-20000-evacuees-as-mayon-volcano-eruption-begins/
• Internet• Google• Youtube
