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| the area along a fault at which slip wage first occurs or an intiating earthquake |
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| the point on earths surface directly above the focuz on an earthquake |
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Definition
| primary waves the long longtitudinal waves generated by an earthquake |
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Definition
| secondary waves; the transverse waves generated by an earthquake |
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Definition
| a seismic wave that travels along earth's surface |
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Definition
| the study of earthquakes and related phenomenon |
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Definition
| scale that expresses the relative magnitude of an earthquake |
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