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 5:41:26 AM (PDT) on Sunday, September 28, 2025.
The magnitude 1.0 event occurred 3 km (2 miles) S of Cobb, CA.
The hypocentral depth is 2 km ( 2 miles).
| Magnitude | 1.0 - duration magnitude (Md) |
| Time | Sunday, September 28, 2025 at 5:41:26 AM (PDT) Sunday, September 28, 2025 at 12:41:26 (UTC) |
| Distance from |
Cobb, CA - 3 km (2 miles) S (175 degrees) The Geysers, CA - 4 km (2 miles) ENE (57 degrees) Middletown, CA - 10 km (6 miles) WNW (298 degrees) Hidden Valley Lake, CA - 14 km (9 miles) W (264 degrees) Lower Lake, CA - 16 km (10 miles) SW (217 degrees) |
| Coordinates | 38 deg. 47.7 min. N (38.796N), 122 deg. 43.2 min. W (122.720W) |
| Depth | 2.46 km (1.50 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=11, Nph=11, Dmin=2.0 km, Rmss=0.02 sec, Erho=0.32 km, Erzz=0.99000001 km, Gp=105 degrees |
| Event ID# | nc75242927 |
| 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)
