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It is when rocks being stressed suddenly break along a new or preexisting fault. |
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ground vibrations that are set off by two blocks of rock on either side of the fault slip. |
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Is the point at which the slip begins of the earthquake. |
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It is the geographic point on Earth's surface directly above the focus. |
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is a tool in which records the seismic waves that earthquakes generate. |
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are primary waves (compressional) they travel through solid, liquid, or gaseous material as a succession of compression and expansions. |
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secondary waves (shear) they displace material at right angles to their path of travel. they do not exist in liquid or gases. |
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they are confined to Earth's surface and outer layers, like waves on the ocean. |
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Which earthquakes (small/large, shallow/deep) occur at which plate boundaries? |
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Divergent: Shallow Transform-Fault: Large Covergent: Deep |
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What are tsunamis, how are they generated? |
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It is a a large earthquake that occurs beneath the ocean can generate a destructive sea wave (tidal wave). |
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landslides, tsunamis, fires |
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What are the different motions of P and S waves? |
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The P waves move in a compressional motion similar to the motion of a slinky, while the S waves move in a shear motion perpendicular to the direction the wave is travelling. |
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