Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #4: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A minor earthquake occurred at 9:45:10 AM (PDT) on Tuesday, September 9, 2025.
The magnitude 3.4 event occurred 9 km (6 miles) ESE of Willow Creek, CA.
The hypocentral depth is 30 km (19 miles).
| Magnitude | 3.4 - local magnitude (Ml) |
| Time | Tuesday, September 9, 2025 at 9:45:10 AM (PDT) Tuesday, September 9, 2025 at 16:45:10 (UTC) |
| Distance from |
Willow Creek, CA - 9 km (6 miles) ESE (104 degrees) Blue Lake, CA - 39 km (24 miles) E (84 degrees) Bayside, CA - 46 km (29 miles) E (79 degrees) Arcata, CA - 47 km (29 miles) E (83 degrees) McKinleyville, CA - 49 km (30 miles) E (93 degrees) |
| Coordinates | 40 deg. 55.2 min. N (40.919N), 123 deg. 31.3 min. W (123.522W) |
| Depth | 30.49 km (18.90 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=106, Nph=115, Dmin=14.0 km, Rmss=0.17 sec, Erho=0.23 km, Erzz=0.71 km, Gp=33 degrees |
| Event ID# | nc75235587 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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