Fracking triggered more than 100 earthquakes in Ohio

Grist

A single fracking wastewater well triggered 167 earthquakes in and around Youngstown, Ohio, during a single year of operation.

That’s according to a study published in the Journal of Geophysical Research by Won-Young Kim, a researcher at Columbia University. Earthquakes had never been recorded at Youngstown before 2010. Then, at the end of that year, frackers started pumping their waste from Marcellus Shale drilling projects into the 9,200-foot deep Northstar 1 injection well. Within two weeks, the area had experienced its first quake.

From January 2011 to February 2012, the area was jangled by an average of nearly 12 earthquakes every month. Many of them were imperceptible to residents, but they grew in intensity over time and ranged up to a home-rattling magnitude-3.9 temblor on the final day of 2011. That was one day after the injection well was last used for dumping waste; the Ohio Department of Natural Resources had ordered…

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