A powerful earthquake struck San Diego around 10 a.m. PT on Monday, with a preliminary magnitude between 5.2 and 6.7. The epicenter was about 2.5 miles south of Julian and the quake was felt across Southern California, including Los Angeles. Emergency alerts advised residents to “drop, cover, and hold on,” as homes shook and light fixtures swayed. At least seven aftershocks followed, the strongest at 3.9 magnitude. No major injuries or damage have been reported, though rockslides affected State Route 76. Local businesses reported minor disruptions, such as fallen items, but no serious losses. Governor Gavin Newsom and San Diego Mayor Todd Gloria are monitoring the situation, with emergency teams on standby. San Diego State University reported no damage, and classes continued. Metrolink OC suspended train service between Oceanside and San Clemente to inspect tracks