A moderately strong, 5.2-magnitude earthquake struck in Southern California on Monday, according to the United States Geological Survey. The temblor happened at 10:08 a.m. Pacific time about 2 miles south of Julian, Calif., data from the agency shows. U.S.G.S. data earlier reported that the magnitude was 6.

The 5.2 quake was centered near Julian. There were no immediate reports of major damage or injuries but some residents reported feeling a strong jolt.