Overview

• The USGS revised the Bay Area event to magnitude 4.3 after initial 4.6 readings, centered east-southeast of Berkeley at 2:56 a.m. PT.
• ShakeAlert activated and more than 22,000 people submitted felt reports across the region, from Santa Rosa to Salinas.
• San Francisco’s emergency agency reported increased 911 calls but no injuries or damage, and Mayor Dan Lurie said crews were assessing impacts.
• BART slowed trains for systemwide track inspections and warned riders of delays up to 20 minutes following the shaking.
• Peru’s IGP recorded a magnitude 5.3 near Marcona with intensity III–IV and no significant damage reported, alongside smaller quakes near Lomas (Arequipa) and northwest of Chilca felt in Lima.