A moderate earthquake registering a magnitude of 4.20 occurred in the East Bay region of California. The seismic event was recorded on February 2, 2026, at 15:01:14 UTC.
The epicenter was calculated to be highly localized, situated approximately four kilometers east-southeast of the city of San Ramon, California. This region is known for frequent, shallow seismic activity related to the complex regional fault network.
Reports indicate that the local weather at the time of the tremor was cold and stable. Conditions featured a clear sky, with temperatures recorded at 2.8°C.
Our editorial team carefully monitors seismic data to provide in-depth analysis. Explore our real-time interactive Live Map for more details.