OAK RIDGE, T.N. - People living in east Tennessee were rattled by two more earthquakes on Thursday, WLOS reports. The U.S. Geological Survey recorded a 1.5 magnitude around 10:20 a.m. in Oak Ridge just southwest of the former K-25 site, where uranium was enriched for use in atomic bombs as part of the Manhattan Project.
Another quake registered a 2.7 magnitude around 1:46 p.m. in Knox County near Blaine.
The two quakes hit just one day after a 4.4 earthquake struck near Decatur, Tenneessee, located about 180 miles west of Asheville.
The light earthquake occurred about 4:15 a.m., and was centered about 7 miles (about 10 kilometers) northeast of Decatur. About 15 minutes later, a 3.3 magnitude aftershock struck.
According to the USGS, the Eastern Tennessee seismic zone is one of the most active earthquake areas in the Southeast. The zone extends across parts of Tennessee, Georgia and Alabama.
There didn’t appear to be any immediate reports of injuries, but people definitely felt it. Dispatchers said some people reported their beds shaking and dishes rattling.
The Tennessee Valley Authority said engineers were inspecting the Watts Bar Nuclear Plant in Tennessee as a precaution, but the facility didn’t appear to be affected and was continuing to operate safely.
Meigs County Emergency Management Director Tony Finnell told the Chattanooga Times Free Press that there were no reports of damage but the county’s 911 lines lit up as soon as it happened.
“We got a few calls because people woke up with noise and vibration,” Finnell said.
The Associated Press contributed to this report.