Authorities say a 2.3 magnitude earthquake shook a portion of central North Carolina early Wednesday, the second earthquake to hit the region within a week. The Winston-Salem Journal reports that the U.S. Geological Survey confirmed a 2.3 magnitude earthquake occurred at 4:05 a.m. Wednesday in Winston-Salem. On Sunday morning, a 2.4 magnitude earthquake shook Winston-Salem shortly before 9 a.m. The Sunday earthquake was centered about 3 miles southwest of Winston-Salem. No injuries or damages were reported after either earthquake. In August 2020, a 5.1-magnitude temblor struck Sparta, the second such quake that morning.