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18 Cards in this Set
- Front
- Back
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volcano
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noun. a break in the earth's crust through which molten lava and gases erupt
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magma
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molten rock in the earth's crust
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lava
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lava is what magma is called when it reaches the Earth's surface
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ash
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the residue that remains when something is burned
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magma chamber
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molten rock in the earth's crust
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caldera
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a large crater caused by the violent explosion of a volcano that collapses into a depression
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seismic waves
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vibrations that cause different types of ground motion
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seismograph
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an instrument used to measure the intensity and duration of an earthquake
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elastic rebound
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the return of rock to its original shape after elastic deformation
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vent
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a crack in the earth's crust through which molten lava and gases erupt
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body waves
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seismic waves that travel through the inside of the Earth
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surface waves
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seismic waves that teavel along the surface of the Earth
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epicenter
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the point on the Earth's surface directly above the focus of an earthquake
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focus
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the location along a fault at which the first motion of an earthquake takes place
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intensity
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the effects of an earthquake and how an eathquake is felt by people
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crater
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a bowl-shaped opening at the top of a volcano
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hot spot
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a location where a column of extremely hot mantle rock rises through the crust
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magnitude
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the measure of energy released by an earthquake
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