“Green” geothermal and hydroelectric projects linked to more earthquakes than fracking

Fracking has also been linked to a “swarm” of 50 small earthquakes in Oklahoma on Jan 18, 2011, ranging in magnitude from 1.0 to 2.8, which occurred at the same time as the fracking of a well in the Eola Oil Field.

But these are the only two confirmed cases where induced seismic activity has been linked to fracking. Far more seismic events have been traced to conventional oil and gas extraction (38), secondary oil recovery through waterflooding (27), geothermal energy (25), waste water injection (11) and hydroelectric reservoirs (44).

Rob Port is the editor of SayAnythingBlog.com. In 2011 he was a finalist for the Watch Dog of the Year from the Sam Adams Alliance and winner of the Americans For Prosperity Award for Online Excellence. In 2013 the Washington Post named SAB one of the nation's top state-based political blogs, and named Rob one of the state's best political reporters. He writes a weekly column for several North Dakota newspapers, and also serves as a policy fellow for the North Dakota Policy Council.

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