Fracking wells close to fault lines induced a series of earthquakes in Ohio, according to a new study that paints a clearer picture of the link between the controversial drilling practice and earth tremors.
The study, published this week in The Bulletin of the Seismological Society of America, found that fracking, formally known as hydraulic fracturing, may have built up subterranean pressure and caused slippage in an existing fault that contributed to dozens of mild earthquakes in Poland Township, Ohio, in March. Two of the earthquakes were large enough to be felt, though they did not do any damage. The study was reported by the New York Times.
Wells further away from the fault line were not related to the tremors, according to the study.
“It appears you have to be quite close to the fault for fracking operations to trigger earthquakes,” Michael R. Brudzinski, a seismologist at…
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