A magnitude 3.3 earthquake struck San Ramon late Sunday night, March 1, 2026, followed by a series of smaller quakes.
According to the U.S. Geological Survey (USGS), the quake occurred at 11:21 p.m. PT at a depth of 8.4 kilometers along the Calaveras Fault. The epicenter was located just southwest of San Ramon. No injuries or structural damage were immediately reported.
As of Monday morning, no “Did You Feel It?” reports had been submitted to the USGS. Light shaking was reported in nearby communities including Dublin, Blackhawk, and Diablo…