As natural gas speculation increases in the Rogersville Shale in Eastern Kentucky, scientists are beginning research into the region’s existing seismic activity.
Right now, several test wells have been drilled into the Rogersville, which is thought to cover 4 million acres in Kentucky and West Virginia. The results of those test wells are confidential, but if the reserves prove profitable, companies could begin drilling large-scale oil and natural gas wells in the formation.
Tapping the Rogersville will also involve hydraulic fracturing, or fracking. Fracking is used to extract oil and gas from deep below the earth; the practice includes injecting water and chemicals miles underground. The dirty water is eventually discarded in deep disposal wells. In some oil and gas drilling areas, numerous earthquakes have been recorded, and scientists are becoming more confident that these quakes are linked to the industry.
From the Associated Press:
Earthquake activity in Oklahoma in 2013 was 70 times greater than it was before 2008, state geologists reported. Oklahoma historically recorded an average of 1.5 quakes of magnitude 3 or greater each year. It is now seeing an average of 2.5 such quakes each day, according to geologists.