Greater Risk Of Big Earthquakes Because Of Increase In Small Ones

 Monday, February 16, 2015

 FOX News

New federal research says small earthquakes shaking Oklahoma and southern Kansas daily are dramatically increasing the chance of bigger and dangerous quakes. Scientists link many of these quakes to the deep underground injections of wastewater after drilling for energy in a process known as hydraulic fracturing, or fracking. Federal records show Oklahoma has had nearly 200 quakes that people have felt since Jan. 1. U.S. Geological Survey geophysicist William Ellsworth says the jump in these nuisance quakes increases the risk of future ones that can do serious damage.
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