Tuesday, April 24, 2012

Fracking earthquakes | Homeland Security News Wire

Fracking earthquakes | Homeland Security News Wire
From 1970 to 2000 the number of magnitude 3.0 or greater temblors in the U.S. mid-continent averaged twenty-one annually; by 2011 the number of such ...
www.homelandsecuritynewswire.com/dr20120424-increased-...

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