Magnitude 3.9 Earthquake Near Dublin, CA Felt Across Bay Area

The quake, downgraded from an initial 4.2 magnitude, caused no injuries or significant damage but raised discussions about seismic risks near the Calaveras Fault.

The earthquake struck at 7:46 p.m. on March 17, 2025, with an epicenter 3 miles west of Dublin and a depth of 7.3 miles.
Initially reported as a magnitude 4.2 quake, it was later revised to 3.9 by the U.S. Geological Survey.
Reports of weak to moderate shaking came from across the Bay Area, including San Francisco, Fremont, and Richmond.
The ShakeAlert early warning system was activated but did not send alerts to phones, as the quake's magnitude was below the 4.5 threshold.
BART completed track inspections after the quake, causing minor delays, while discussions continue about the region's seismic risks near the Calaveras Fault.