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 minor earthquake occurred at 5:23:53 AM (PDT) on Monday, October 27, 2025.
The magnitude 3.5 event occurred 54 km (34 miles) WSW of Ferndale, CA.
The hypocentral depth is 0.37 km (0.20 miles).
| Magnitude | 3.5 - local magnitude (Ml) |
| Time | Monday, October 27, 2025 at 5:23:53 AM (PDT) Monday, October 27, 2025 at 12:23:53 (UTC) |
| Distance from |
Ferndale, CA - 54 km (34 miles) WSW (248 degrees) Fortuna, CA - 63 km (39 miles) WSW (249 degrees) Rio Dell, CA - 64 km (40 miles) W (259 degrees) Hydesville, CA - 66 km (41 miles) WSW (255 degrees) Humboldt Hill, CA - 67 km (42 miles) WSW (237 degrees) |
| Coordinates | 40 deg. 23.5 min. N (40.391N), 124 deg. 51.3 min. W (124.855W) |
| Depth | 0.37 km (0.20 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=54, Nph=58, Dmin=83.8 km, Rmss=1.44 sec, Erho=3.86 km, Erzz=2.001 km, Gp=241 degrees |
| Event ID# | nc75255261 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
[
Index map ||
Big earthquake list ||
All earthquake list ||
Glossary of terms ||
Top page
]
[
Did you feel it? ||
ShakeMaps
|| Relative2Me
]
[ Data Sources ]
Special maps
Long Valley || Los Angeles || San Francisco
Data Sources
US and World - USGS/NEIC = National Earthquake Information Center
Northern California - UCB = University of California, Berkeley
Southern California - Caltech = California Institute of Technology
Nevada - UNR = University of Nevada, Reno
Offshore = West Coast & Alaska Tsunami Warning Center
...all members of the Advanced National Seismic System (ANSS)
