Earthquakes southeast of Dover in the last few weeks have included some large enough to get Oklahoma Corporation Commission to stop well-completion operations in the area. The OCC shut down a fracking operation southeast of Dover last week. The largest one was measured by the U.S. Geological Survey at 6:12 p.m. Thursday as a 3.6.
That quake was one of a cluster of 32 most were less than 3.0. USGS considers magnitude 3.0 to be an intensity that most earthquakes can be felt by humans.
According to the Oklahoma Corporation Commission, the earthquakes Thursday morning were being considered aftershocks to that Wednesday evening quake, after which well operations in the area were ordered to cease indefinitely.