Near Watts Bar and Sequoya nuke plants!
2.1 quake in the same area – RSOE REPORT
These are small quakes but they may be precursors to larger ones.
The 2 nuke plants are old and have miles of piping that gets brittle from the Wigner effect. Lots of info on old, brittle piping in nuke plants when you look up the recently closed San Onofre plant in California.
It was the creaky old piping that caused the public outcry.