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| Is the vibration of earth produced by the release of rapid energy. |
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| The point within Earth where the earthquake starts. |
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| The epicenter is the location on the surface directly above the focus. |
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| Are fractures in Earth where movement has occured. |
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| Elastic rebound hypothesis |
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| The release of energy stored in deformed rocks. |
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| Aftershocks are movements that follow a major earthquake. |
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| Foreshocks are small earthquakes that often come before a major earthquake. |
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| Are instruments that record earthquakes waves. |
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| Seismographs amplify and electronically record ground motion, producing a trace called a seimogram. |
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| Surface waves are seismic waves that travel along Earth`s outer layer. |
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| P Waves are push - pull waves that compress & expand through rocks. |
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| S waves shake the particles at right angle direction of travel. |
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| Is the amount of displacement that occurs along a fault zone. |
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| Is when stable soil turns into a liquid that is not able to support buildings and other structures. |
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| Is an area along a fault where there has not been any earthquake activity for a long period of time. |
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| Is the thin rocky outer layer of Earth, divided into oceanic & continental crust. |
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| 82% of the earth`s volume is the Mantle. A solid rocky shell that extends to a depth of 2890 kilometers. |
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| Is the Earth`s most outermost layer. It`s approximately 100 kilometers in thickness. |
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| Is a soft weak layer beneath the lithosphere. It has temperature/pressure conditions that result in a small amount of melting. |
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| Is a liquid layer 2260 kilometers thick, this zone generates the magnetic field. |
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| Is a sphere having a radius of 1220 kilometers. The Inner core is compressed into state by the immense pressure. |
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