Overview
- A magnitude 3.8 earthquake struck near the Oakland Zoo on Thursday morning and was widely felt across the Bay Area, with USGS reporting two smaller aftershocks soon afterward.
- Automated early readings varied — briefly showing as high as magnitude 4.1 — before USGS refined the event to 3.8 as more data were processed.
- Bay Area Rapid Transit held trains and then ran them at reduced speed so crews could walk tracks and inspect for damage, causing short delays before service returned to normal.
- Local sites including the Oakland Zoo and emergency agencies carried out safety checks and reported no major damage or injuries after the temblor.
- Seismologists and news coverage tied the event to the nearby Hayward Fault and reminded residents that USGS models project a substantial long‑term risk of a much larger quake in the region, so aftershocks and routine inspections will remain likely.