a magnitude 3.5 earthquake struck Southern California on Saturday shaking the Inland Empire and being felt widely across the region the Tremor occurred in the afternoon prompting residents to report sudden jolts and vibrations in homes and businesses fortunately there are no initial reports of serious damage or injuries seismologists are monitoring the situation reminding residents to stay prepared for aftershocks as the area is prone to seismic activity the serves as a reminder of Southern California's ongoing geological Dynamics