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 8:38:18 PM (PDT) on Sunday, September 21, 2025.
The magnitude 2.3 event occurred 0 km (0 miles) ENE (58 degrees) of The Geysers, CA.
The hypocentral depth is -0.05 km (-0.00 miles).
| Magnitude | 2.3 - duration magnitude (Md) |
| Time | Sunday, September 21, 2025 at 8:38:18 PM (PDT) Monday, September 22, 2025 at 3:38:18 (UTC) |
| Distance from |
The Geysers, CA - 0 km (0 miles) ENE (58 degrees) Cobb, CA - 6 km (4 miles) SSW (210 degrees) Middletown, CA - 13 km (8 miles) WNW (283 degrees) Hidden Valley Lake, CA - 17 km (11 miles) W (259 degrees) Lower Lake, CA - 19 km (12 miles) SW (221 degrees) |
| Coordinates | 38 deg. 46.6 min. N (38.777N), 122 deg. 45.4 min. W (122.756W) |
| Depth | -0.05 km (-0.00 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=42, Nph=40, Dmin=1.1 km, Rmss=0.07 sec, Erho=0.15 km, Erzz=0.25999999 km, Gp=35 degrees |
| Event ID# | nc75240427 |
| 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)
