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 2:11:03 AM (PDT) on Tuesday, October 28, 2025.
The magnitude 1.0 event occurred 9 km (5 miles) WNW of Cobb, CA.
The hypocentral depth is 1 km ( 1 mile).
| Magnitude | 1.0 - duration magnitude (Md) |
| Time | Tuesday, October 28, 2025 at 2:11:03 AM (PDT) Tuesday, October 28, 2025 at 9:11:03 (UTC) |
| Distance from |
Cobb, CA - 9 km (5 miles) WNW (289 degrees) The Geysers, CA - 9 km (6 miles) NW (326 degrees) Kelseyville, CA - 15 km (9 miles) S (172 degrees) Soda Bay, CA - 17 km (11 miles) S (188 degrees) Cloverdale, CA - 18 km (11 miles) ENE (75 degrees) |
| Coordinates | 38 deg. 50.8 min. N (38.847N), 122 deg. 49.0 min. W (122.816W) |
| Depth | 1.19 km (0.70 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=14, Nph=14, Dmin=1.1 km, Rmss=0.05 sec, Erho=0.25 km, Erzz=0.620000005 km, Gp=55 degrees |
| Event ID# | nc75255621 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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