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 is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 11:31:21 AM (PDT) on Monday, August 25, 2025.
The magnitude 2.1 event occurred 7 km (5 miles) ENE (75 degrees) of Vallejo, CA.
The hypocentral depth is 4 km ( 2 miles).


Magnitude 2.1 - duration magnitude (Md)
Time Monday, August 25, 2025 at 11:31:21 AM (PDT)
Monday, August 25, 2025 at 18:31:21 (UTC)
Distance from Vallejo, CA - 7 km (5 miles) ENE (75 degrees)
Benicia, CA - 9 km (6 miles) N (2 degrees)
Crockett, CA - 10 km (6 miles) NNE (31 degrees)
American Canyon, CA - 11 km (7 miles) ESE (118 degrees)
Martinez, CA - 12 km (8 miles) N (352 degrees)
Coordinates 38 deg. 7.8 min. N (38.130N), 122 deg. 9.3 min. W (122.154W)
Depth 3.94 km (2.40 miles)
Quality Fair
Location Quality Parameters Nst=10, Nph=10, Dmin=0.9 km, Rmss=0.21 sec, Erho=1.5 km, Erzz=1.33000004 km, Gp=166 degrees
Event ID# nc75228667
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)