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 4:20:43 AM (PDT) on Friday, October 31, 2025.
The magnitude 0.7 event occurred 3 km (2 miles) ENE (64 degrees) of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 0.7 - duration magnitude (Md) |
| Time | Friday, October 31, 2025 at 4:20:43 AM (PDT) Friday, October 31, 2025 at 11:20:43 (UTC) |
| Distance from |
The Geysers, CA - 3 km (2 miles) ENE (64 degrees) Cobb, CA - 4 km (2 miles) S (184 degrees) Middletown, CA - 10 km (6 miles) WNW (293 degrees) Hidden Valley Lake, CA - 15 km (9 miles) W (262 degrees) Lower Lake, CA - 17 km (10 miles) SW (217 degrees) |
| Coordinates | 38 deg. 47.3 min. N (38.789N), 122 deg. 43.6 min. W (122.726W) |
| Depth | 1.77 km (1.10 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=8, Nph=7, Dmin=1.1 km, Rmss=0.01 sec, Erho=0.3 km, Erzz=1.41999996 km, Gp=92 degrees |
| Event ID# | nc75257036 |
| 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)
