Fracking is definitely causing earthquakes, another study confirms
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Yet another study has found a link between hydraulic fracturing and earthquakes. This one examined 77 minor quakes near the Ohio-Pennsylvania border. The Pittsburgh Post-Gazette reports:
The sequence of seismic events, including a rare felt quake of a magnitude 3.0 on the Richter scale, was caused by active fracking on two nearby Hilcorp Energy Co. well pads, according to the research published online [Tuesday] in the Bulletin of the Seismological Society of America.
The study found that although it is rare for fracking associated with shale gas extraction to cause earthquakes large enough to be felt on the surface by humans, seismic monitoring advances have found the number of felt and unfelt earthquakes associated with fracking have increased over the past 10 years.
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