The seismic activity immediately raised suspicions that it was linked to injection wells that oil and gas companies use as part of fracking and other operations. The 5.6-magnitude earthquake was felt in five states; it followed a string of smaller temblors that hit the region in Oklahoma in the past week.
As Joe Wertz of StateImpact Oklahoma reports for our Newscast unit:
The Oklahoma Corporation Commission says the moratorium area includes 211 square miles of Osage County, which is in the Environmental Protection Agency’s jurisdiction. The EPA will determine whether wells in that area should be shut down, the agency says.