Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California


Version #0: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 7:36:06 AM (PST) on Monday, February 2, 2026.
The magnitude 2.8 event occurred 4 km (2 miles) ESE of San Ramon, CA.
The hypocentral depth is 8 km ( 5 miles).


Magnitude 2.8 - local magnitude (Ml)
Time Monday, February 2, 2026 at 7:36:06 AM (PST)
Monday, February 2, 2026 at 15:36:06 (UTC)
Distance from San Ramon, CA - 4 km (2 miles) ESE (110 degrees)
Blackhawk, CA - 6 km (4 miles) SSW (206 degrees)
Dublin, CA - 7 km (5 miles) N (358 degrees)
Danville, CA - 8 km (5 miles) SE (138 degrees)
Diablo, CA - 8 km (5 miles) SSE (167 degrees)
Coordinates 37 deg. 46.1 min. N (37.769N), 121 deg. 56.3 min. W (121.939W)
Depth 7.59 km (4.70 miles)
Quality Fair
Location Quality Parameters Nst=70, Nph=70, Dmin=10.2 km, Rmss=0.69 sec, Erho=1.31 km, Erzz=4.224 km, Gp=19 degrees
Event ID# nc75305861
Additional Information Map

For more information, see https://earthquake.usgs.gov

[ Index map || Big earthquake list || All earthquake list || Glossary of terms || Top page ]
[ Did you feel it? || ShakeMaps || Relative2Me ]
[ Data Sources ]

Special maps
Long Valley || Los Angeles || San Francisco

Data Sources
US and World - USGS/NEIC = National Earthquake Information Center
Northern California - UCB = University of California, Berkeley
Southern California - Caltech = California Institute of Technology
Nevada - UNR = University of Nevada, Reno
Offshore = West Coast & Alaska Tsunami Warning Center
...all members of the Advanced National Seismic System (ANSS)