The East Tennessee Seismic Zone is an active one, even if it isn't known to produce quakes strong enough to be catastrophic. The most recent one centered near Greenback fits that pattern ...

The quake hit around 9 a.m. local time, about 13 miles from Greenback, Tennessee, which is about 30 miles south of Knoxville, ...

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.