Sizable earthquake jolts Bay Area Monday morning

ALAMEDA, Calif. (KRON) — A sizable earthquake jolted the Bay Area shortly before 3 a.m. Monday. The quake, a magnitude 4.3, had its epicenter about a mile east of Berkeley.

According to the United States Geological Survey, the quake struck at 2:56 a.m. at a depth of 4.34 miles. Initially, the USGS deemed the quake a 4.6 before revising it down to 4.3.

The quake was felt across the East Bay in Walnut Creek, Martinez, and Alameda, and across the Bay in San Francisco and Sausalito. It was felt northward into Santa Rosa and southward into Santa Cruz, according to more than 23,000 Did You Feel It? reports.

A preliminary 2.6-magnitude aftershock occurred at 8:01 a.m., according to USGS.

There were no preliminary reports of damage or injuries. The Bay Area Rapid Transit District (BART) said it is running its trains at reduced speeds as track inspections are made. San Francisco Mayor Daniel Lurie said the Department of Emergency Management (DEM), along with first responders, will be assessing the city for impacts.

“While 911 received an increase in calls from people who felt shaking, there have been no reports of injuries in San Francisco at this time,” DEM wrote on X.

According to the USGS’s aftershock forecast just after 5 a.m., there is a 24% chance of an aftershock between a magnitude of 3.0 and 4.0 within the next week.