Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A minor earthquake occurred at 7:48:36 PM (PDT) on Friday, October 9, 2026.
The magnitude 3.4 event occurred 14 km (9 miles) N (10 degrees) of Brooktrails, CA.
The hypocentral depth is 9 km ( 5 miles).
| Magnitude | 3.4 - local magnitude (Ml) |
| Time | Friday, October 9, 2026 at 7:48:36 PM (PDT) Saturday, October 10, 2026 at 2:48:36 (UTC) |
| Distance from |
Brooktrails, CA - 14 km (9 miles) N (10 degrees) Laytonville, CA - 17 km (11 miles) SE (141 degrees) Willits, CA - 18 km (11 miles) N (0 degrees) Covelo, CA - 27 km (17 miles) SSW (200 degrees) Redwood Valley, CA - 36 km (22 miles) NNW (339 degrees) |
| Coordinates | 39 deg. 34.1 min. N (39.569N), 123 deg. 21.3 min. W (123.355W) |
| Depth | 8.53 km (5.30 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=52, Nph=59, Dmin=9.3 km, Rmss=0.87 sec, Erho=1.37 km, Erzz=1.978 km, Gp=64 degrees |
| Event ID# | nc75447201 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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