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 10:08:50 AM (PDT) on Friday, October 3, 2025.
The magnitude 1.0 event occurred 6 km (3 miles) ESE of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).


Magnitude 1.0 - duration magnitude (Md)
Time Friday, October 3, 2025 at 10:08:50 AM (PDT)
Friday, October 3, 2025 at 17:08:50 (UTC)
Distance from The Geysers, CA - 6 km (3 miles) ESE (119 degrees)
Middletown, CA - 7 km (5 miles) W (270 degrees)
Cobb, CA - 8 km (5 miles) SSE (166 degrees)
Hidden Valley Lake, CA - 14 km (9 miles) WSW (244 degrees)
Lower Lake, CA - 19 km (12 miles) SSW (204 degrees)
Coordinates 38 deg. 45.2 min. N (38.753N), 122 deg. 42.0 min. W (122.701W)
Depth 1.20 km (0.70 miles)
Quality Excellent
Location Quality Parameters Nst=8, Nph=8, Dmin=1.7 km, Rmss=0.03 sec, Erho=0.34 km, Erzz=0.610000014 km, Gp=83 degrees
Event ID# nc75244371
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)