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 6:52:55 PM (PDT) on Monday, October 20, 2025.
The magnitude 2.7 event occurred 35 km (22 miles) SSW of Ferndale, CA.
The hypocentral depth is 10 km ( 6 miles).
| Magnitude | 2.7 - duration magnitude (Md) |
| Time | Monday, October 20, 2025 at 6:52:55 PM (PDT) Tuesday, October 21, 2025 at 1:52:55 (UTC) |
| Distance from |
Ferndale, CA - 35 km (22 miles) SSW (204 degrees) Rio Dell, CA - 36 km (22 miles) SW (230 degrees) Hydesville, CA - 40 km (25 miles) SW (225 degrees) Fortuna, CA - 41 km (26 miles) SW (214 degrees) Humboldt Hill, CA - 52 km (33 miles) SSW (203 degrees) |
| Coordinates | 40 deg. 17.5 min. N (40.291N), 124 deg. 25.9 min. W (124.432W) |
| Depth | 9.93 km (6.20 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=27, Nph=26, Dmin=7.6 km, Rmss=0.12 sec, Erho=1.44 km, Erzz=0.550000012 km, Gp=264 degrees |
| Event ID# | nc75252151 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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