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 9:25:33 AM (PST) on Saturday, February 21, 2026.
The magnitude 1.8 event occurred 6 km (3 miles) W of Cobb, CA.
The hypocentral depth is 1 km ( 1 mile).
| Magnitude | 1.8 - duration magnitude (Md) |
| Time | Saturday, February 21, 2026 at 9:25:33 AM (PST) Saturday, February 21, 2026 at 17:25:33 (UTC) |
| Distance from |
Cobb, CA - 6 km (3 miles) W (272 degrees) The Geysers, CA - 6 km (4 miles) NNW (332 degrees) Middletown, CA - 17 km (11 miles) WNW (298 degrees) Kelseyville, CA - 18 km (11 miles) SSE (165 degrees) Lower Lake, CA - 18 km (11 miles) WSW (238 degrees) |
| Coordinates | 38 deg. 49.4 min. N (38.824N), 122 deg. 47.3 min. W (122.788W) |
| Depth | 1.14 km (0.70 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=26, Nph=26, Dmin=1.3 km, Rmss=0.06 sec, Erho=0.17 km, Erzz=0.280000001 km, Gp=39 degrees |
| Event ID# | nc75316832 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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