A preliminary magnitude-4.4 earthquake in the San Bernardino area produced shaking that was felt over widespread parts of Southern California. The quake, reported at about 9:30 a.m., was one of four of magnitude-2.5 or greater in the area, which includes the communities of Muscoy and Rialto.

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,

LOS ANGELES — 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.S. Geological Survey.