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 8:27:27 AM (PDT) on Friday, September 4, 2026.
The magnitude 2.3 event occurred 5 km (3 miles) NE (44 degrees) of Willits, CA.
The hypocentral depth is -0.27 km (-0.20 miles).


Magnitude 2.3 - duration magnitude (Md)
Time Friday, September 4, 2026 at 8:27:27 AM (PDT)
Friday, September 4, 2026 at 15:27:27 (UTC)
Distance from Willits, CA - 5 km (3 miles) NE (44 degrees)
Brooktrails, CA - 6 km (4 miles) E (91 degrees)
Redwood Valley, CA - 22 km (14 miles) NNW (335 degrees)
Laytonville, CA - 31 km (19 miles) SSE (152 degrees)
Ukiah, CA - 34 km (21 miles) NNW (345 degrees)
Coordinates 39 deg. 26.6 min. N (39.443N), 123 deg. 18.8 min. W (123.314W)
Depth -0.27 km (-0.20 miles)
Quality Good
Location Quality Parameters Nst=22, Nph=22, Dmin=3.5 km, Rmss=0.21 sec, Erho=0.39 km, Erzz=1.48000002 km, Gp=62 degrees
Event ID# nc75429682
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)