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 0:45:50 AM (PDT) on Tuesday, October 21, 2025.
The magnitude 0.6 event occurred 3 km (2 miles) NNW of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).
| Magnitude | 0.6 - duration magnitude (Md) |
| Time | Tuesday, October 21, 2025 at 0:45:50 AM (PDT) Tuesday, October 21, 2025 at 7:45:50 (UTC) |
| Distance from |
The Geysers, CA - 3 km (2 miles) NNW (337 degrees) Cobb, CA - 5 km (3 miles) WSW (240 degrees) Middletown, CA - 14 km (9 miles) WNW (292 degrees) Lower Lake, CA - 18 km (11 miles) SW (229 degrees) Hidden Valley Lake, CA - 18 km (11 miles) W (268 degrees) |
| Coordinates | 38 deg. 48.1 min. N (38.801N), 122 deg. 46.2 min. W (122.770W) |
| Depth | 1.07 km (0.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=7, Nph=7, Dmin=1.7 km, Rmss=0.03 sec, Erho=0.4 km, Erzz=1.02999997 km, Gp=127 degrees |
| Event ID# | nc75252231 |
| 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)
