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 micro earthquake occurred at 6:26:37 PM (PDT) on Monday, September 15, 2025.
The magnitude 1.7 event occurred 38 km (24 miles) SSW of Ferndale, CA.
The hypocentral depth is 16 km (10 miles).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Monday, September 15, 2025 at 6:26:37 PM (PDT) Tuesday, September 16, 2025 at 1:26:37 (UTC) |
| Distance from |
Ferndale, CA - 38 km (24 miles) SSW (211 degrees) Rio Dell, CA - 41 km (25 miles) SW (234 degrees) Fortuna, CA - 45 km (28 miles) SW (219 degrees) Hydesville, CA - 45 km (28 miles) SW (229 degrees) Humboldt Hill, CA - 55 km (34 miles) SSW (208 degrees) |
| Coordinates | 40 deg. 17.1 min. N (40.285N), 124 deg. 29.7 min. W (124.494W) |
| Depth | 16.42 km (10.20 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=31, Nph=45, Dmin=12.9 km, Rmss=0.17 sec, Erho=0.48 km, Erzz=0.26 km, Gp=266 degrees |
| Event ID# | nc75238207 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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