The Rialto Fire Department reported that a series of small earthquakes shook the northwestern portion of the city Thursday morning.

A 4.3-magnitude earthquake shook parts of Southern California, the U.S. Geological Survey reported. The about 3-mile deep quake hit about 4 miles west from Muscoy in San Bernardino County at 9:32 a.m. Thursday, July 31, according to the USGS.

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.