11.05.2009, 05:18 PM
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#306
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invito al cielo
Join Date: Mar 2006
Location: Birkenhead
Posts: 9,397
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SOME earthquakes can leave a legacy of aftershocks that last for centuries.
Low-level seismic rumbles appear to foreshadow many quakes. Yet not always: the 2008 Sichuan quake in China came out of the blue. These rumbles may not be precursors but aftershocks - readjustments at a fault following a larger event, in some cases centuries earlier
http://www.newscientist.com/article/...ng-planet.html
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