A light, 4.3-magnitude earthquake struck in Southern California on Thursday, according to the United States Geological Survey. The temblor happened at 9:32 a.m. Pacific time about 4 miles west of Muscoy, Calif., data from the agency shows. U.S.G.S. data earlier reported that the magnitude was 4.2.

A magnitude 4.4 earthquake hit Southern California on Thursday morning, according to the U.S. Geological Society.

A magnitude 4.3 earthquake rumbled through Muscoy in San Bernardino County on Thursday morning, triggering shaking across the Inland Empire region, Los Angeles and Orange counties, according to the U.