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| Forces that push on rock in the opposite--but not directly opposite-- horizontal directions and eventually creates a stike-slip fault when strong enough |
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| Forces that squeezes the rock to form a reverse fault |
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| Forces that pull rocks apart to form a normal fault |
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| Break in rock caused by shear forces, where rocks move past each other without much vertical movement |
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| Break in rock caused by tension forces, where rock above the fault surface moves down relative to the rock below the fault surface |
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| Break in rock caused by comprresive forces, where rock above the fault surface moves upward relative to the rock below the fault surface |
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| Surface along which rocks move when they pass their elastic limit and break |
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| Vibrations produced when rocks break along a fault |
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| Measure of the energy released during an earthquake |
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| Occurs when wet soil acts more like a liquid during an earthquake |
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| instrument used to register earthquake waves and record the time that each arrived |
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| In an earthquake, the point below Earth's surface where energy is released in the form of seismic waves |
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| Point above the Earth's surface directly above an earthquake's focus |
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| Wave generated by an earthquake |
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| Seismic sea wave that begins over an earthquake focus and can be highly destructive when it crashes on shore |
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