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10 Cards in this Set
- Front
- Back
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The sudden movement of one block of rock slipping past another along a fault |
What is an earthquake? |
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an elastic wave in the earth produced by an earthquake or other means. |
What is Seismic Wave |
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the point within the earth where an earthquake rupture starts |
What is hypocenter |
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the point directly where an earthquake rupture starts, at the surface of the Earth |
What is epicenter |
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Another name for hypocenter |
What is focus |
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When a major earthquake often generate smaller earthquakes |
What are aftershocks |
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when small earthquakes precede a major earthquake by days or, in some cases, by as much as several years |
What are foreshocks |
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Rocks on both sides of an existing fault are deformed by _______ |
What are tectonic forces |
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Rocks ________ elastic energy |
What are bend and store |
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Frictional resistance holding the rocks together is ________ |
What are overcome? |
