1. Earthquake Safety
Chapter 6 Section 4

2. How Earthquakes Cause Damage
Shaking
Avalanches, landslides
Destroy buildings, bridges, utility poles, gas lines, water mains
The severity of the shaking is determined by the soil.

3. How Earthquakes Cause Damage
Liquefaction
Violent shaking turns loose soft soil into mud
Ground that gives way can cause buildings to sink and pull apart

4. How Earthquakes Cause Damage
Aftershocks
Can topple weakened buildings
Can occur hours, days or weeks later

5. How Earthquakes Cause Damage
Tsunami
Ocean floor that pushes on water can form a giant wave that moves out from the epicenter

6. Earthquake safety Drop, cover and hold Indoors
Get under sturdy table or desk
Crouch near an inner wall
Cover your head and neck
Avoid windows, mirrors, things that can topple
prepare an earthquake kit
(ahead of time)

7. Earthquake safety Outdoors
Get to an open area away from power lines and trees
Sit

8. Safer Buildings Seismic Safe
Anchor bridges and buildings to solid ground
Base – isolated buildings reduce energy that reaches structure (rubber pads, springs)

9. Safer Utilities Flexible joints in gas and water lines
Automatic shut off valves