The region is seismically active, lying within a broader network of fault lines across southern California.

A 3.3 magnitude earthquake shook the ground in the Redlands area, east of Los Angeles, on Wednesday morning. The earthquake’s epicenter was just east of Riverside, California, and was at a depth of about 6.2 kilometers or about 3.9 miles, according to the U.S. Geological Survey. The quake occurred at 9:45 a.m.

Local officials have not reported any damage from the earthquake.