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 1:52:19 PM (PST) on Friday, November 21, 2025.
The magnitude 1.6 event occurred 4 km (3 miles) SE of Cobb, CA.
The hypocentral depth is 0.30 km (0.20 miles).
| Magnitude | 1.6 - duration magnitude (Md) |
| Time | Friday, November 21, 2025 at 1:52:19 PM (PST) Friday, November 21, 2025 at 21:52:19 (UTC) |
| Distance from |
Cobb, CA - 4 km (3 miles) SE (125 degrees) The Geysers, CA - 7 km (4 miles) ENE (69 degrees) Middletown, CA - 8 km (5 miles) NW (312 degrees) Hidden Valley Lake, CA - 11 km (7 miles) W (265 degrees) Lower Lake, CA - 14 km (9 miles) SSW (207 degrees) |
| Coordinates | 38 deg. 48.0 min. N (38.800N), 122 deg. 40.9 min. W (122.682W) |
| Depth | 0.30 km (0.20 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=22, Nph=22, Dmin=1.6 km, Rmss=0.06 sec, Erho=0.26 km, Erzz=0.400000006 km, Gp=69 degrees |
| Event ID# | nc75267371 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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