Difference between revisions of "Earthquake"
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* [[seismic]] | * [[seismic]] | ||
* [[Loma Prieta Earthquake]] | * [[Loma Prieta Earthquake]] | ||
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| + | ==External links== | ||
| + | *[http://www.drgeorgepc.com/EarthquakesChina.html Historical Earthquakes in China] | ||
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[[Category:Seismology]] | [[Category:Seismology]] | ||
[[Category:Natural Disasters]] | [[Category:Natural Disasters]] | ||
Revision as of 03:09, June 17, 2009
An earthquake is the shaking caused when tectonic activity in an area causes the release of stored energy from the rock. Most commonly occurring on tectonic plate boundaries, earthquakes also occur along faults where previous movement has occurred.
Earthquakes are a significant natural hazard to populations living in areas prone to earthquakes and responses to the hazard vary with economic development. The most powerful and destructive earthquakes occur at tectonic plate boundaries like the San Andreas Fault.
The severity of earthquakes is measured using the Richter scale.