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a point along a fault at which the first motion of an earthquake occurs |
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An instrument that records vibrations in the ground and determines the location and strength of an earthquake |
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weaker earthquakes that follow a stronger earthquake |
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occurs where two plates slip past each other |
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*travel through solids, liquids, and gas *fast *first waves detected *move rock back and forth |
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*second fastest wave *side to side motion *Slower than p waves * Travel through solids only |
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a large movement of water created by an underwater earthquake |
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a wave of energy that travels through the Earth away from an earthquake in all directions |
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the point on the Earth's surface directly above an earthquake's starting point |
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used to measure strength of earthquake based on units of 10 |
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Measures earthquake intensity based on damage and a person's opinion. I to XI |
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