BBC: New research suggests that fracking is not a significant cause of earthquakes that can be felt on the surface.
UK scientists looked at quakes caused by human activity ranging from mining to oil drilling; only three could be attributed to hydraulic fracturing.
Most fracking events released the same amount of energy as jumping off a ladder, the Durham-based team said.
They argue that the integrity of well bores drilled for fracking is of much greater concern.
The research is published in......
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Quake risk from fracking ‘minimal’
Posted by BBC: Matt McGrath on April 10th, 2013
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