Add Quakes to Rumblings Over Gas Rush

by Henry Fountain - The New York Times - December 12, 2011

UNLOADING Workers disposing of hydraulic fracturing waste near Guy, Ark.

YOUNGSTOWN, Ohio — Until this year, this Rust Belt city and surrounding Mahoning County had been about as dead, seismically, as a place can be, without even a hint of an earthquake since Scots-Irish settlers arrived in the 18th century.

But on March 17, two minor quakes briefly shook the city. And in the following eight months there have been seven more — like the first two, too weak to cause damage or even be felt by many people, but strong enough to rattle some nerves.

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