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10 Cards in this Set
- Front
- Back
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Earthquake
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The shaking that results from the movement of rock between Earth's surface
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Focus
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The point beneath Earth's surface where rock breaks under stress and causes an earthquake
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Epicenter
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The point on Earth's surface directly above an earthquake's focus
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P Wave
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A type of seismic wave that compresses and expands the ground
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Surface Wave
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A type of seismic wave that forms when P waves and S waves reach earth's surface
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Mercalli Scale
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A scale that rates earthquakes according to their intensity and how much damage they cause at a particular place
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Magnitude
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The measurement of an earthquake's strength based on seismic waves and movement along faults
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Richter Scale
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A scale that rates an earthquake's magnitude based on the size of its seismic waves
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Seismograph
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A device that record ground movements caused by seismic waves as they move through Earth
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Moment Magnitude Scale
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A scale that rates earthquakes by estimating the total energy released by an earthquake
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