Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #7: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A light earthquake occurred at 9:22:56 AM (PST) on Saturday, February 21, 2026.
The magnitude 4.2 event occurred 5 km (3 miles) W of Cobb, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 4.2 - moment magnitude (Mw) |
| Time | Saturday, February 21, 2026 at 9:22:56 AM (PST) Saturday, February 21, 2026 at 17:22:56 (UTC) |
| Distance from |
Cobb, CA - 5 km (3 miles) W (271 degrees) The Geysers, CA - 6 km (3 miles) NNW (335 degrees) Middletown, CA - 17 km (10 miles) WNW (298 degrees) Kelseyville, CA - 18 km (11 miles) SSE (164 degrees) Lower Lake, CA - 18 km (11 miles) WSW (237 degrees) |
| Coordinates | 38 deg. 49.4 min. N (38.823N), 122 deg. 47.0 min. W (122.784W) |
| Depth | 1.96 km (1.20 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=106, Nph=119, Dmin=1.1 km, Rmss=0.08 sec, Erho=0.09 km, Erzz=0.14 km, Gp=24 degrees |
| Event ID# | nc75316827 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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