Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
An earthquake occurred at 8:48:06 PM (PDT) on Friday, August 1, 2025.
The magnitude -0.3 event occurred 5 km (3 miles) WNW of Cobb, CA.
The hypocentral depth is 2 km ( 2 miles).
| Magnitude | -0.3 - duration magnitude (Md) |
| Time | Friday, August 1, 2025 at 8:48:06 PM (PDT) Saturday, August 2, 2025 at 3:48:06 (UTC) |
| Distance from |
Cobb, CA - 5 km (3 miles) WNW (288 degrees) The Geysers, CA - 7 km (4 miles) NNW (342 degrees) Kelseyville, CA - 17 km (10 miles) SSE (162 degrees) Middletown, CA - 17 km (11 miles) WNW (303 degrees) Lower Lake, CA - 17 km (11 miles) WSW (241 degrees) |
| Coordinates | 38 deg. 50.2 min. N (38.837N), 122 deg. 46.9 min. W (122.781W) |
| Depth | 2.38 km (1.50 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=9, Nph=11, Dmin=0.8 km, Rmss=0.02 sec, Erho=0.4 km, Erzz=0.48 km, Gp=94 degrees |
| Event ID# | nc75218162 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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