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.
A micro earthquake occurred at 8:49:47 PM (PDT) on Sunday, August 3, 2025.
The magnitude 0.4 event occurred 9 km (5 miles) WNW of Cobb, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 0.4 - duration magnitude (Md) |
| Time | Sunday, August 3, 2025 at 8:49:47 PM (PDT) Monday, August 4, 2025 at 3:49:47 (UTC) |
| Distance from |
Cobb, CA - 9 km (5 miles) WNW (282 degrees) The Geysers, CA - 9 km (6 miles) NW (320 degrees) Kelseyville, CA - 16 km (10 miles) S (175 degrees) Cloverdale, CA - 17 km (11 miles) ENE (78 degrees) Soda Bay, CA - 18 km (11 miles) S (189 degrees) |
| Coordinates | 38 deg. 50.3 min. N (38.839N), 122 deg. 49.3 min. W (122.822W) |
| Depth | 1.96 km (1.20 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=13, Nph=14, Dmin=1.1 km, Rmss=0.02 sec, Erho=0.3 km, Erzz=0.55 km, Gp=86 degrees |
| Event ID# | nc75218842 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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