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 8:24:48 PM (PDT) on Wednesday, September 3, 2025.
The magnitude 1.8 event occurred 32 km (20 miles) SW of Rio Dell, CA.
The hypocentral depth is 13 km ( 8 miles).
| Magnitude | 1.8 - duration magnitude (Md) |
| Time | Wednesday, September 3, 2025 at 8:24:48 PM (PDT) Thursday, September 4, 2025 at 3:24:48 (UTC) |
| Distance from |
Rio Dell, CA - 32 km (20 miles) SW (220 degrees) Ferndale, CA - 34 km (21 miles) SSW (192 degrees) Hydesville, CA - 37 km (23 miles) SW (215 degrees) Fortuna, CA - 39 km (24 miles) SSW (205 degrees) Redway, CA - 48 km (30 miles) WNW (291 degrees) |
| Coordinates | 40 deg. 16.6 min. N (40.276N), 124 deg. 21.0 min. W (124.350W) |
| Depth | 13.21 km (8.20 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=20, Nph=20, Dmin=1.5 km, Rmss=0.13 sec, Erho=1.25 km, Erzz=0.529999971 km, Gp=240 degrees |
| Event ID# | nc75232932 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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