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.

The earthquake could be felt in at least Palm Springs and Idyllwild. In south Palm Springs, it briefly shook walls before passing quickly. It was initially reported as being a magnitude 4.6 before being downgraded. There were no reports of damage online in the immediate aftermath of the quake.

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.