A 5.2 magnitude San Diego earthquake jolted Southern California Monday morning, with the epicenter near the mountain town of Julian, northeast of the city. The U.S. Geological Survey (USGS) reported that the earthquake struck at 10:08 a.m. local time, followed by multiple aftershocks.
According to USGS data, the quake was felt as far north as Los Angeles, and nearly 40,000 people reported feeling the shaking via the USGS “Did You Feel It?” program.
📍 USGS Earthquake Map – Julian, CA Quake Details
Elsinore Fault Activity and Foreshocks
The earthquake occurred along the Elsinore Fault, which is typically considered “relatively quiet,” said USGS seismologist Elizabeth Cochran in an interview with Newsweek. Cochran noted that the quake was preceded by 14 foreshocks, including a magnitude 3.3 event on Sunday.
Renowned seismologist Dr. Lucy Jones, founder of the Dr. Lucy Jones Center for Science and Society, explained that any earthquake could be a foreshock. “Essentially, a foreshock is a main shock that happens to have a really big aftershock,” she said during a press briefing.
