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Published byMae George Modified over 9 years ago
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What causes an earthquake? Deformation- the change in shape of rock in response to stress Elastic Rebound- Return of rock to its original undeformed state
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Are all earthquakes the same? Convergent boundaries produce the strongest earthquakes
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How do Earthquakes Travel? Seismic waves- waves of energy that travel through the Earth l Body waves l P (Primary) waves-travel through solids, liquids, and gases, fastest traveling waves l S (Secondary) waves- 2nd fastest traveling, only go through solids
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How S and P waves travel
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Seismic Waves (cont.) Surface Waves-cause the ground to move up and down as the wave travels along the surface, cause the most damage
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Seismograph- an instrument that records seismic waves Epicenter- the place on earth’s surface directly above where earthquakes begin Focus- the place beneath the earth’s surface where earthquakes begin Richter Scale- measures earthquake strength
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