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Read More:
Earthquake
http://en.wikipedia.org/wiki/Earthquake
"An earthquake (also known as a quake, tremor or temblor) is the result of a sudden release of energy in the Earth's crust that creates seismic waves."

1989 Loma Prieta Earthquake
http://en.wikipedia.org/wiki/1989_Loma_Prieta_earthquake
"The Loma Prieta earthquake, also known as the Quake of '89 and the World Series Earthquake, was a major earthquake that struck the San Francisco Bay Area of California on Tuesday, October 17, 1989, at 5:04 pm local time."

A Human Trigger for the Great Quake of Sichuan?
http://www.sciencemag.org/content/323/5912/322.full
"The first researchers have gone public with evidence that stresses from water piled behind the new Zipingpu Dam may have triggered last May's devastating earthquake in China's Sichuan Province."

Scientists Link China's Dam to Earthquake, Renewing Debate
http://online.wsj.com/news/articles/SB123391567210056475
"Scientists in China and the U.S. have published new reports examining the possibility that a giant dam may have helped to trigger last May's massive earthquake in China's Sichuan province, renewing controversy over the devastation and other dam-building projects across China's earthquake-prone western regions."

Toads can 'predict earthquakes' and seismic activity
http://news.bbc.co.uk/earth/hi/earth_news/newsid_8593000/8593396.stm
"Common toads appear to be able to sense an impending earthquake and will flee their colony days before the seismic activity strikes."

How Earthquakes Work
http://science.howstuffworks.com/nature/natural-disasters/earthquake7.htm
"Today's scientists understand earthquakes a lot better than we did even 50 years ago, but they still can't match the quake-predicting prowess of the common toad (Bufo bufo), which can detect seismic activity days in advance of a quake."

Be Prepared: Before, During and After an Earthquake
consrv.ca.gov/index/earthquakes/Pages/qh_earthquakes_what.aspx
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Can Animals Predict Earthquakes?
https://testtube.com/dnews/dnews-845-animals-predict-weather

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