Fracking causes earthquakes, studies confirm

CBC News
The Canadian Press
April 17, 2012

Two separate studies are providing insights into the earth-shaking consequences of the controversial gas extraction process known as fracking.

Both studies confirm that processes linked to the extraction of oil and gas through hydraulic fracturing, or fracking, can trigger manmade earthquakes. Fracking involves blasting water, sand and chemicals deep into the ground to fracture rock to obtain oil and natural gas.

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