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Definition
| force that push on a rock in opposite but not directly opposite directions |
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| force that squeezes rocks together |
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| force that pulls rocks apart |
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| break in rock caused by shear forces,where rock moves past each other without much vertical movement |
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Definition
| break in rock caused by tension forces, where rock above the fault surface moves down. |
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| seismic wave that begins over an earthquake focus and can be highly destructive when it crashes on shore. |
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| instrument used to register earthquake waves and record the time that each arrived |
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Definition
| point on earths surface directly above an earthquake's focus |
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