an information source recently revealed to me it is common knowledge among geologists that building mega dams can trigger earthquakes when the water eventually seeps down into fault lines and lubricates them - http://ipsnews.net/news.asp?idnews=37844
NOTE: Located 20 km east of the epicenter of the 2008 Sichuan earthquake -- at the junction of Dujiangyan City and Wenchuan County on the upper Minjiang River -- the Zipingpu Hydropower Plant was brought into service in 2006...
