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 7:03:03 AM (PDT) on Tuesday, September 9, 2025.
The magnitude 2.2 event occurred 36 km (22 miles) SSW of Ferndale, CA.
The hypocentral depth is 11 km ( 7 miles).
| Magnitude | 2.2 - duration magnitude (Md) |
| Time | Tuesday, September 9, 2025 at 7:03:03 AM (PDT) Tuesday, September 9, 2025 at 14:03:03 (UTC) |
| Distance from |
Ferndale, CA - 36 km (22 miles) SSW (210 degrees) Rio Dell, CA - 38 km (24 miles) SW (234 degrees) Hydesville, CA - 42 km (26 miles) SW (229 degrees) Fortuna, CA - 43 km (27 miles) SW (218 degrees) Humboldt Hill, CA - 53 km (33 miles) SSW (207 degrees) |
| Coordinates | 40 deg. 17.8 min. N (40.296N), 124 deg. 28.3 min. W (124.472W) |
| Depth | 11.20 km (7.00 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=17, Nph=17, Dmin=11.0 km, Rmss=0.17 sec, Erho=3.08 km, Erzz=0.860000014 km, Gp=270 degrees |
| Event ID# | nc75235487 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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