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 11:45:07 AM (PDT) on Thursday, August 28, 2025.
The magnitude 1.2 event occurred 2 km (1 miles) NW of Cobb, CA.
The hypocentral depth is 0.24 km (0.10 miles).
| Magnitude | 1.2 - duration magnitude (Md) |
| Time | Thursday, August 28, 2025 at 11:45:07 AM (PDT) Thursday, August 28, 2025 at 18:45:07 (UTC) |
| Distance from |
Cobb, CA - 2 km (1 miles) NW (326 degrees) The Geysers, CA - 7 km (4 miles) NNE (14 degrees) Lower Lake, CA - 14 km (8 miles) SW (234 degrees) Middletown, CA - 14 km (9 miles) NW (312 degrees) Clearlake, CA - 16 km (10 miles) SW (216 degrees) |
| Coordinates | 38 deg. 50.3 min. N (38.838N), 122 deg. 44.2 min. W (122.737W) |
| Depth | 0.24 km (0.10 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=13, Nph=13, Dmin=3.0 km, Rmss=0.05 sec, Erho=0.48 km, Erzz=0.930000007 km, Gp=189 degrees |
| Event ID# | nc75229947 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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