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 10:50:37 PM (PDT) on Monday, July 21, 2025.
The magnitude 1.0 event occurred 6 km (4 miles) WNW of Cobb, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 1.0 - duration magnitude (Md) |
| Time | Monday, July 21, 2025 at 10:50:37 PM (PDT) Tuesday, July 22, 2025 at 5:50:37 (UTC) |
| Distance from |
Cobb, CA - 6 km (4 miles) WNW (285 degrees) The Geysers, CA - 7 km (5 miles) NNW (335 degrees) Kelseyville, CA - 16 km (10 miles) SSE (165 degrees) Soda Bay, CA - 18 km (11 miles) S (181 degrees) Middletown, CA - 18 km (11 miles) WNW (301 degrees) |
| Coordinates | 38 deg. 50.2 min. N (38.836N), 122 deg. 47.5 min. W (122.792W) |
| Depth | 2.25 km (1.40 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=14, Nph=14, Dmin=0.3 km, Rmss=0.03 sec, Erho=0.3 km, Erzz=0.579999983 km, Gp=50 degrees |
| Event ID# | nc75213277 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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