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 3:42:00 AM (PDT) on Tuesday, August 5, 2025.
The magnitude 1.8 event occurred 7 km (4 miles) W of Cobb, CA.
The hypocentral depth is 1 km ( 1 mile).
| Magnitude | 1.8 - duration magnitude (Md) |
| Time | Tuesday, August 5, 2025 at 3:42:00 AM (PDT) Tuesday, August 5, 2025 at 10:42:00 (UTC) |
| Distance from |
Cobb, CA - 7 km (4 miles) W (281 degrees) The Geysers, CA - 7 km (5 miles) NNW (329 degrees) Kelseyville, CA - 16 km (10 miles) SSE (168 degrees) Middletown, CA - 18 km (11 miles) WNW (299 degrees) Cloverdale, CA - 19 km (12 miles) E (80 degrees) |
| Coordinates | 38 deg. 50.0 min. N (38.834N), 122 deg. 48.1 min. W (122.801W) |
| Depth | 1.44 km (0.90 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=34, Nph=34, Dmin=1.0 km, Rmss=0.04 sec, Erho=0.16 km, Erzz=0.25 km, Gp=39 degrees |
| Event ID# | nc75219482 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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