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Tue January 3, 2012
Researcher Discusses Ohio Fracking, Earthquakes
Melissa Block interviews John Armbruster, a seismologist with Lamont-Doherty Earth Observatory, part of Columbia University, about why he believes the waste from fracking in Ohio has led to the earthquakes there. He says the injection of waste water from the fracking process created pressure on nearby faults, and he expects the quakes to continue — even after the process is stopped.