Fracking water disposal "likely" linked to destructive Okla. quake

04/1/2013 | National Geographic News · Bloomberg

A magnitude 5.7 earthquake in Oklahoma in 2011 may have been caused by the deep disposal of wastewater related to hydraulic fracturing to retrieve oil and gas, according to research by the University of Oklahoma, Columbia University and the U.S. Geological Survey. The quake, the largest documented in the state's history, destroyed 14 homes and produced other damage. The researchers say this and a jump in seismic activity across the U.S. amid fracking activities suggest that better monitoring and oversight are in order.

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National Geographic News · Bloomberg

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