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 12:24:37 PM (PDT) on Wednesday, August 20, 2025.
The magnitude 0.4 event occurred 5 km (3 miles) WNW of Cobb, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 0.4 - duration magnitude (Md) |
| Time | Wednesday, August 20, 2025 at 12:24:37 PM (PDT) Wednesday, August 20, 2025 at 19:24:37 (UTC) |
| Distance from |
Cobb, CA - 5 km (3 miles) WNW (283 degrees) The Geysers, CA - 6 km (4 miles) NNW (342 degrees) Middletown, CA - 17 km (10 miles) WNW (302 degrees) Kelseyville, CA - 17 km (11 miles) SSE (162 degrees) Lower Lake, CA - 17 km (11 miles) WSW (239 degrees) |
| Coordinates | 38 deg. 49.9 min. N (38.832N), 122 deg. 46.8 min. W (122.779W) |
| Depth | 6.94 km (4.30 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=6, Nph=6, Dmin=1.2 km, Rmss=0.04 sec, Erho=2.79 km, Erzz=6.5 km, Gp=217 degrees |
| Event ID# | nc75226362 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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