A 4.1-magnitude earthquake in Tennessee woke up families and rattled homes as far away as Atlanta as it spread tremors across portions of the southern U.S. on Saturday morning. No injuries or major damage were immediately reported.

The quake hit around 9 a.m. local time, about 13 miles from Greenback, Tennessee, which is about 30 miles south of Knoxville, the U.S. Geological Survey said.