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 11:15:34 AM (PST) on Saturday, February 21, 2026.
The magnitude 0.5 event occurred 6 km (4 miles) WNW of Cobb, CA.
The hypocentral depth is 0.31 km (0.20 miles).
| Magnitude | 0.5 - duration magnitude (Md) |
| Time | Saturday, February 21, 2026 at 11:15:34 AM (PST) Saturday, February 21, 2026 at 19:15:34 (UTC) |
| Distance from |
Cobb, CA - 6 km (4 miles) WNW (293 degrees) The Geysers, CA - 8 km (5 miles) NNW (341 degrees) Kelseyville, CA - 16 km (10 miles) SSE (163 degrees) Lower Lake, CA - 17 km (11 miles) WSW (243 degrees) Middletown, CA - 18 km (11 miles) NW (304 degrees) |
| Coordinates | 38 deg. 50.5 min. N (38.842N), 122 deg. 47.1 min. W (122.785W) |
| Depth | 0.31 km (0.20 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=7, Nph=7, Dmin=1.9 km, Rmss=0.06 sec, Erho=0.69 km, Erzz=1.39999998 km, Gp=176 degrees |
| Event ID# | nc75317212 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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