At 4.1 magnitude near Greenback, the May 10 quake was large for our area. Experts look back on the last earthquakes to predict the future.

Millions of people have since watched numerous videos online that took the drills as a cue to share disastrous predictions about a future earthquake in Missouri's New Madrid Seismic Zone.

Bathymetry of a depth of 1 km is contoured to outline the Tonga ... and colleagues was titled, 'Slab temperature controls on the Tonga double seismic zone and slab mantle dehydration.' ...

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: At 4.1 ...