Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

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


Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 8:54:02 AM (PDT) on Saturday, September 13, 2025.
The magnitude 1.4 event occurred 7 km (4 miles) NNE (22 degrees) of Ukiah, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 1.4 - duration magnitude (Md)
Time Saturday, September 13, 2025 at 8:54:02 AM (PDT)
Saturday, September 13, 2025 at 15:54:02 (UTC)
Distance from Ukiah, CA - 7 km (4 miles) NNE (22 degrees)
Redwood Valley, CA - 7 km (4 miles) SSE (163 degrees)
Talmage, CA - 8 km (5 miles) N (352 degrees)
Upper Lake, CA - 24 km (15 miles) W (281 degrees)
Boonville, CA - 27 km (17 miles) NE (36 degrees)
Coordinates 39 deg. 12.3 min. N (39.204N), 123 deg. 10.8 min. W (123.180W)
Depth 5.01 km (3.10 miles)
Quality Good
Location Quality Parameters Nst=15, Nph=19, Dmin=10.4 km, Rmss=0.06 sec, Erho=0.18 km, Erzz=0.97 km, Gp=73 degrees
Event ID# nc75237422
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)