The quake on Saturday morning had a preliminary magnitude of 4.1, with an epicenter about 30 miles southwest of Knoxville, Tenn. Residents in Atlanta reported feeling it.

The quake could be felt in parts of the Carolinas, Alabama, Kentucky, Georgia and Virginia, according to early data from USGS.

A mild 4.1 magnitude earthquake about 30 miles south of Knoxville, Tennessee, was felt across the southeastern region of the United States Saturday morning from Chattanooga, Tennessee, to Atlanta, Georgia;