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 5:55:22 AM (PDT) on Wednesday, August 20, 2025.
The magnitude 0.5 event occurred 6 km (4 miles) WNW of Cobb, CA.
The hypocentral depth is 1 km ( 1 mile).
| Magnitude | 0.5 - duration magnitude (Md) |
| Time | Wednesday, August 20, 2025 at 5:55:22 AM (PDT) Wednesday, August 20, 2025 at 12:55:22 (UTC) |
| Distance from |
Cobb, CA - 6 km (4 miles) WNW (289 degrees) The Geysers, CA - 7 km (5 miles) NNW (339 degrees) Kelseyville, CA - 16 km (10 miles) SSE (163 degrees) Lower Lake, CA - 17 km (11 miles) WSW (243 degrees) Soda Bay, CA - 18 km (11 miles) S (179 degrees) |
| Coordinates | 38 deg. 50.3 min. N (38.839N), 122 deg. 47.2 min. W (122.786W) |
| Depth | 1.34 km (0.80 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=8, Nph=8, Dmin=1.0 km, Rmss=0.02 sec, Erho=0.65 km, Erzz=1.63999999 km, Gp=91 degrees |
| Event ID# | nc75226232 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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