Crews run a fracking operation that runs a mile underground near Medicine Lodge, Kan., in September 2011.
Crews run a fracking operation that runs a mile underground near Medicine Lodge, Kan., in September 2011. MCT
Crews run a fracking operation that runs a mile underground near Medicine Lodge, Kan., in September 2011. MCT

Scientists see fracking as cause of quakes

November 04, 2014 7:58 AM