Hazard1-Earthquakes-slides_Jan201111.ppt

gbcabeor 0 views 10 slides Oct 22, 2025
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About This Presentation

This tells us how to prevent the earthquake


Slide Content

Earthquakes
CERT Basic Training
Hazards

An Earthquake is…
●A sudden slipping or movement of a
portion of the Earth’s crust
Caused by a sudden release of stresses
Usually less than 25 miles below the surface
CERT Basic Training
Unit 1: Earthquakes
E-2

Earthquake Damage
●Collapsed buildings
●Damage to utilities, structures, and roads
●Fires and explosions
●Structural
instability,
e.g., dams
CERT Basic Training
Unit 1: Earthquakes
E-3

●Greatest likelihood
Western United States
‒San Andreas Fault
‒Western Oregon and Washington
‒Alaskan coast
New Madrid Fault Zone in Missouri
Few pockets on East Coast
‒Coastal South Carolina
‒New England
CERT Basic Training
Unit 1: Earthquakes
E-4
Likelihood of an Earthquake

●75 million Americans in 39 states face
significant risk
●Residents of California face the highest
risk (17 million people) followed by
residents of western Washington State
●4 million people along New Madrid Fault
Zone at great risk
●Residents of Massachusetts, North
Carolina, and South Carolina also at risk
CERT Basic Training
Unit 1: Earthquakes
E-5
Earthquake Statistics

Richter Scale
●Small: 5.0 to 5.9
●Moderate: 6.0 to 6.9
●Major: 7.0 to 7.9
●Great: 8.0
or greater
CERT Basic Training
Unit 1: Earthquakes
E-6

●Develop home earthquake plan
●Conduct earthquake drills
●Develop plan for reuniting family members
●Develop family communication plan
●Keep supplies on hand
CERT Basic Training
Unit 1: Earthquakes
E-7
Earthquake Preparedness

●Store heavy and breakable objects on low
shelves
●Secure bookshelves and water heaters
●Install flexible pipe
●Move beds away from windows
●Move or secure hanging objects over
beds, sofas, or chairs
●Keep shoes and flashlight under bed
CERT Basic Training
Unit 1: Earthquakes
E-8
Earthquake Preparedness

●Drop, cover, and hold
●If indoors, stay there until shaking stops
●If outdoors, find a spot away from
buildings, trees, streetlights, power lines,
and overpasses
●If in a vehicle, drive to clear spot and stop
CERT Basic Training
Unit 1: Earthquakes
E-9
During an Earthquake

●First:
Check selves for injuries
Protect selves from further danger
●Then:
Extinguish small fires
Clean up spills
Inspect home for damage
Help neighbors
Tune to Emergency Alert System (EAS)
Expect aftershocks
CERT Basic Training
Unit 1: Earthquakes
E-10
After an Earthquake
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