Overview

• The U.S. Geological Survey recorded the magnitude 4.3 event shortly before 3 a.m. local time with an epicenter east-southeast of Berkeley.
• The ShakeAlert early-warning system issued notifications when the tremor was detected.
• More than 22,000 people submitted felt reports, with shaking noted across the Bay Area and as far south as Salinas.
• San Francisco emergency managers reported a spike in 911 calls but no injuries or confirmed structural damage.
• BART reduced train speeds for track inspections and warned of systemwide delays of up to 20 minutes as evaluations proceed.