Epicenter
From The Encyclopedia of Earth
March 12, 2011, 12:00 am
December 28, 2011, 1:00 pm
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Geology (main)
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The epicenter is the location on the Earth's surface that is directly above the hypocenter (or focus) of an earthquake. The epicenter normally represents the first place where the seismic waves released from the underground earthquake rupture encounter the ground surface.