U.S. Army and USGS Confirm Historic Link Between Earthquakes and Hydraulic Fracturing

See on Scoop.itGreen & Sustainable News

The U.S. natural gas industry claims that hydraulic fracturing, otherwise known as fracking is safe. Yet government agencies have determined otherwise.

Duane Tilden‘s insight:

>"Until two years ago Oklahoma typically had about 50 earthquakes a year, but in 2010, 1,047 quakes shook the state.

 Why?

In Lincoln County, where most of this past weekend’s seismic incidents were centered, there are 181 injection wells, according to Matt Skinner, an official from the Oklahoma Corporation Commission, the agency which oversees oil and gas production in the state.

Cause and effect?

The practice of injecting water into deep rock formations causes earthquakes, both the U.S. Army and the U.S. Geological Survey have concluded.

The U.S. natural gas industry pumps a mixture of water and assorted chemicals deep underground to shatter sediment layers containing natural gas, a process called hydraulic fracturing, known more informally as “fracking.” While environmental groups have primarily focused on fracking’s capacity to pollute underground water, a more ominous byproduct emerges from U.S. government studies – that forcing fluids under high pressure deep underground produces increased regional seismic activity.

As the U.S. natural gas industry mounts an unprecedented and expensive advertising campaign to convince the public that such practices are environmentally benign, U.S. government agencies have determined otherwise."<

See on oilprice.com

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