Viewers from across the state and beyond were rattled by an earthquake centered in Grant County.

The United States Geological Survey (USGS) says it was a 4.4-mag. earthquake centered in Medford, Okla. The Oklahoma Geological Survey (OGS) says it was a 4.5-mag. earthquake.

Because of the temblor, the Oklahoma Corporation Commission's Induced Seismicity Department directed "three oil and gas wastewater disposal wells to stop operations until further notice," according to a press release.

This is a developing story.