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21 Cards in this Set
- Front
- Back
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aftershock
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one of many earthquakes that often occur during the days or months after a larger earthquake has occurred (noun)
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crater
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a hole at the top of a volcano (noun)
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crust
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the thin outer layer of the earth's surface (noun)
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erupt
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to eject gas, ash, and lava from a volcano (verb)
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fault
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a crack in the Earth's crust where movement occurs. (noun)
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fissure
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a long narrow opening or crack (noun)
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geology
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the study of rocks, soil and minerals (noun)
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magnitude
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greatness of size or intensity (noun)
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pressure
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physical force placed on an object (noun)
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shake
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to cause to move back and forth or up and down with short, quick movements (verb)
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tsunami
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a big wave caused by an earthquake, volcano, or some other movement of Earth's surface (noun)
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convergent boundary
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a part of the Earth's crust where two tectonic plates are moving toward each other (noun)
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divergent boundary
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a part of the Earth's crust where two tectonic plates are moving away from each other (noun)
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eppicenter
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the point on the Earth's surface directly above the hypocenter
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igneous rock
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rock formed by the hardening of hot, molten magma (noun)
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lithosphere
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Earth's crust and upper mantle; the rocky part of the planet (noun)
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mantle
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the semi-solid layer of Earth that lies between the outer crust and the core (noun)
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plate tectonics
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a geological theory explaining the movement of Earth's crust (noun)
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ring of fire
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a ring of volcanoes along the edges of the continents that border the Pacific Ocean (noun)
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seismograph
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an instrument that records the motions of the Earth, especially earthquakes (noun)
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transform boundary
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a part of the Earth's crust where two tectonic plates slide past each other (noun)
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