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12 Cards in this Set
- Front
- Back
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There are roughly _______ Earthquakes a year |
1000 |
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This energy radiates in all directions from its source |
focus |
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most earthquakes result from movements along large fractures called _________ |
faults |
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The San Andreas Fault Zone seperates these two crusts |
What is North American and Pacific Plate |
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an elastic wave in the earth produced by an earthquake or other means. |
seismic wave |
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a name for seismic waves that travel on the Earth |
surface wave |
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A name for seismic waves that travel through the Earth |
body wave |
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Body Waves are divided into ___________ ; ____________ |
Primary and Secondary Waves |
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P Waves ______ and _________ rocks in the direction the wave is travelling |
Compress ; Pull |
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S Waves ________ the particles at right angles to their direction of travel |
shake |
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S Waves can only go through _______; P Waves can go through ____________________________ |
solids ; solids, liquids, gas |
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The greatest number of earthquakes happen in this location |
The circum-pacific belt |
