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Earthquake Image Glossary


 


Glossary of earthquake terms

 

diagram of epicenter and focus
(Image courtesy of Charles Ammon, Penn State)

Epicenter
The epicenter is the point on the earth's surface vertically above the hypocenter (or focus), point in the crust where a seismic rupture begins.

See also Earthquake ABC's.

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U.S. Department of the Interior, U.S. Geological Survey
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URL: http://earthquake.usgs.gov/image_glossary/
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Last modification: Tuesday, 21-May-2002 12:35
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