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 11:35:58 AM (PDT) on Monday, August 18, 2025.
The magnitude 1.0 event occurred 2 km (1 miles) SSW of Cobb, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 1.0 - duration magnitude (Md) |
| Time | Monday, August 18, 2025 at 11:35:58 AM (PDT) Monday, August 18, 2025 at 18:35:58 (UTC) |
| Distance from |
Cobb, CA - 2 km (1 miles) SSW (198 degrees) The Geysers, CA - 4 km (2 miles) NE (37 degrees) Middletown, CA - 12 km (7 miles) WNW (300 degrees) Hidden Valley Lake, CA - 15 km (9 miles) W (269 degrees) Lower Lake, CA - 16 km (10 miles) SW (222 degrees) |
| Coordinates | 38 deg. 48.3 min. N (38.805N), 122 deg. 43.8 min. W (122.730W) |
| Depth | 1.95 km (1.20 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=8, Nph=7, Dmin=2.4 km, Rmss=0.03 sec, Erho=0.36 km, Erzz=1.69000006 km, Gp=118 degrees |
| Event ID# | nc75225502 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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