At 4.1 magnitude near Greenback, the quake was large for our area. Experts look back on the last earthquakes to predict the future.

He said that he’s not surprised it happened because that part of the state is an active seismic zone called the East Tennessee Seismic Zone. “Earthquakes there are happening there all the time ...

East Tennessee Seismic Zone subject to quakes An earthquake occurs when two blocks of the earth suddenly slip past one another. The surface where they slip is called the fault or the fault plane.

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.