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 3:51:49 PM (PDT) on Wednesday, September 17, 2025.
The magnitude 2.5 event occurred 39 km (24 miles) SW of Ferndale, CA.
The hypocentral depth is 9 km ( 5 miles).
| Magnitude | 2.5 - duration magnitude (Md) |
| Time | Wednesday, September 17, 2025 at 3:51:49 PM (PDT) Wednesday, September 17, 2025 at 22:51:49 (UTC) |
| Distance from |
Ferndale, CA - 39 km (24 miles) SW (214 degrees) Rio Dell, CA - 42 km (26 miles) SW (236 degrees) Fortuna, CA - 46 km (29 miles) SW (222 degrees) Hydesville, CA - 46 km (29 miles) SW (231 degrees) Humboldt Hill, CA - 56 km (35 miles) SSW (210 degrees) |
| Coordinates | 40 deg. 17.4 min. N (40.289N), 124 deg. 31.2 min. W (124.520W) |
| Depth | 8.61 km (5.40 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=15, Nph=14, Dmin=15.1 km, Rmss=0.14 sec, Erho=3.51 km, Erzz=1.52999997 km, Gp=277 degrees |
| Event ID# | nc75238957 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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