Earthquake Related Hazards

Earthquake Related Hazards

Here are some earthquake-related hazards

Here are some earthquakerelated hazards

Earthquake-related Hazards

• Ground Shaking

• Ground Rupture

• Tsunami

• Liquefaction

• Earthquake-induced Landslide

Multiple Choice

This is a disruptive up-down sideways movement or motion experienced during earthquake.

• Ground Shaking

• Ground Rupture

Ground Shaking

Strong ground shaking can cause objects to fall or might cause damage to infrastructures

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Multiple Choice

Sea waves resulting from the disturbance of the ocean floor by an earthquake

• .Liquefaction

• Ground Rupture

• Tsunami

Tsunami

This a series of giant sea waves commonly generated by under-the-sea earthquakes whose heights could be greater than 5 meters.

Multiple Choice

Tsunami and storm surge are the same?

• TRUE

• FALSE

TSUNAMI VERSUS STORM SURGE

A tsunami is a Japanese word meaning “harbor waves”. A tsunami is commonly generated by disturbances associated with earthquakes occurring below or near the ocean floor.

storm surges are wind-generated waves on the surface of the sea. 

Signs of an impending Tsunami

• Strong Shaking, Earthquake

• Sea will withdraw. Rapid lowering of sea level or noticeable rise and fall of coastal water

• The unusual rumbling sound of approaching waves 

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Multiple Choice

This is a displacement on the ground due to movement of fault.

• Ground Rupture

• Liquefaction

• Tsunami

Ground Rupture

Some may experience superficial cracks because of ground failure.

Multiple Choice

It is a process that transforms the behavior of a body of sediments from that of a solid to that of a liquid when subjected to extremely intense shaking.

• Ground Rupture

• Liquefaction

• Ground Shaking

Liquefaction

As a result, any heavy load on top of the sediment body will either sink or tilt as the sediment could no longer hold the load.

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how to be safe?

Importance of Hazard Map

• Hazard maps indicate the extent of expected risk areas and can be combined with disaster management information such as evacuation sites, evacuation routes, and so forth.

• Different hazard maps are provided by the Philippine Institute of Volcanology and Seismology

Multiple Choice

Participate in earthquake drill conducted in your school.

• Do it before an earthquake

• Do it after an earthquake

• Do it during an earthquake

Multiple Choice

Keep yourself safe from falling objects during an earthquake.

• Do it before an earthquake

• Do it after an earthquake

• Do it during an earthquake

Multiple Choice

Check yourself and others for injuries.

• Do it before an earthquake.

• Do it after an earthquake.

• Do it during an earthquake.

Multiple Choice

Duck, cover and hold wherever you are.

• Do it before an earthquake.

• Do it after an earthquake.

• Do it during an earthquake.

Multiple Choice

How can some of the impacts of earthquakes be reduced?

• by building structures that can sway with the motion

• by building structures that do NOT move with the motion

• by using thermometers to measure ground temperatures

• by using satellites to monitor warning buoys in the ocean

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How to prepare for an earthquake

• Have a first aid kit

• Have canned foods

• Have enough water for everyone

• Flashlights

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What should you do during an earthquake?

• Hide under a sturdy table or desk and grab onto it

• Go outside into an open field and stay there with your hands over your heads

• Call 911 immediately

• Run to the nearest table and go on top of it

Multiple Choice

After an earthquake, what might cause more damage to structures?

• P waves

• S waves

• earth shocks

• aftershocks

Multiple Choice

Which of the following is NOT an immediate danger to be concerned about after an earthquake?

• downed power lines

• broken telephones

• broken glass

• fire hazards

Multiple Choice

What is the best thing to do if you are indoors when an earthquake strikes?

• go outside immediately

• stand near a door

• lie under a table

• turn on a radio

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What should you plan with others to do after an earthquake is over?

• retrofit your home

• go out for dinner

• meet in a safe place

• buy food and water