Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

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


Version #4: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 0:31:47 AM (PDT) on Tuesday, March 24, 2026.
The magnitude 2.8 event occurred 3 km (2 miles) ESE of San Ramon, CA.
The hypocentral depth is 9 km ( 5 miles).


Magnitude 2.8 - local magnitude (Ml)
Time Tuesday, March 24, 2026 at 0:31:47 AM (PDT)
Tuesday, March 24, 2026 at 7:31:47 (UTC)
Distance from San Ramon, CA - 3 km (2 miles) ESE (123 degrees)
Dublin, CA - 7 km (4 miles) N (353 degrees)
Blackhawk, CA - 7 km (4 miles) SSW (208 degrees)
Diablo, CA - 8 km (5 miles) S (172 degrees)
Danville, CA - 8 km (5 miles) SE (144 degrees)
Coordinates 37 deg. 45.8 min. N (37.764N), 121 deg. 56.7 min. W (121.946W)
Depth 8.51 km (5.30 miles)
Quality Fair
Location Quality Parameters Nst=70, Nph=70, Dmin=1.8 km, Rmss=0.58 sec, Erho=2.07 km, Erzz=1.898 km, Gp=25 degrees
Event ID# nc75332242
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)