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 3:26:02 AM (PDT) on Wednesday, September 17, 2025.
The magnitude 2.3 event occurred 39 km (24 miles) SW of Ferndale, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 2.3 - duration magnitude (Md) |
| Time | Wednesday, September 17, 2025 at 3:26:02 AM (PDT) Wednesday, September 17, 2025 at 10:26:02 (UTC) |
| Distance from |
Ferndale, CA - 39 km (24 miles) SW (215 degrees) Rio Dell, CA - 42 km (26 miles) WSW (237 degrees) Fortuna, CA - 46 km (29 miles) SW (223 degrees) Hydesville, CA - 46 km (29 miles) SW (232 degrees) Humboldt Hill, CA - 56 km (35 miles) SSW (211 degrees) |
| Coordinates | 40 deg. 17.6 min. N (40.293N), 124 deg. 31.6 min. W (124.527W) |
| Depth | 7.94 km (4.90 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=24, Nph=23, Dmin=15.7 km, Rmss=0.13 sec, Erho=2.62 km, Erzz=1.25999999 km, Gp=277 degrees |
| Event ID# | nc75238727 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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