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 minor earthquake occurred at 0:09:04 AM (PDT) on Tuesday, September 9, 2025.
The magnitude 3.6 event occurred 44 km (27 miles) SW of Ferndale, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 3.6 - moment magnitude (Mw) |
| Time | Tuesday, September 9, 2025 at 0:09:04 AM (PDT) Tuesday, September 9, 2025 at 7:09:04 (UTC) |
| Distance from |
Ferndale, CA - 44 km (27 miles) SW (218 degrees) Rio Dell, CA - 48 km (30 miles) WSW (238 degrees) Fortuna, CA - 51 km (32 miles) SW (225 degrees) Hydesville, CA - 52 km (32 miles) SW (233 degrees) Humboldt Hill, CA - 61 km (38 miles) SSW (213 degrees) |
| Coordinates | 40 deg. 16.1 min. N (40.268N), 124 deg. 34.9 min. W (124.582W) |
| Depth | 5.74 km (3.60 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=74, Nph=81, Dmin=20.5 km, Rmss=0.20 sec, Erho=0.49 km, Erzz=0.64 km, Gp=245 degrees |
| Event ID# | nc75235342 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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