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 5:13:50 AM (PDT) on Friday, October 31, 2025.
The magnitude 1.9 event occurred 34 km (21 miles) SSW of Ferndale, CA.
The hypocentral depth is 15 km ( 9 miles).
| Magnitude | 1.9 - duration magnitude (Md) |
| Time | Friday, October 31, 2025 at 5:13:50 AM (PDT) Friday, October 31, 2025 at 12:13:50 (UTC) |
| Distance from |
Ferndale, CA - 34 km (21 miles) SSW (200 degrees) Rio Dell, CA - 34 km (21 miles) SW (227 degrees) Hydesville, CA - 38 km (24 miles) SW (222 degrees) Fortuna, CA - 40 km (25 miles) SSW (211 degrees) Humboldt Hill, CA - 52 km (32 miles) SSW (200 degrees) |
| Coordinates | 40 deg. 17.4 min. N (40.291N), 124 deg. 24.0 min. W (124.400W) |
| Depth | 14.83 km (9.20 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=6, Nph=6, Dmin=4.9 km, Rmss=0.10 sec, Erho=5.87 km, Erzz=5.51000023 km, Gp=298 degrees |
| Event ID# | nc75257086 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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