Earthquakes
Kinds and locations of earthquakes
3 kinds of earthquakes
Ø TECTONIC (more devastating)
· Cause by movements of the tectonic plates around earth crusts
· Most of them occur at boundaries of these plates. Ex. San Andres fault in California
· 50% occur art sub duction zones concentrated along the ring of fire
Ocurre in variety of settings
mid ocean ridges
the sea floor
spreading centers
Ø VOLCANIC ( usually small )
· In a volcano it could have more than a 100 earthquakes a day …
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…careful when lighting fires in fireplaces. Chimney damage may lead to fires.
Check utilities for damage. If you smell gas, turn off the gas and do not use electrical devices (including telephones). Stay away from broken electrical wires, and turn off the main fuse box or circuit breaker. If water pipes are damaged, do not use the toilet and avoid tap water for drinking. Use your emergency supply, and melt ice cubes for additional water.
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