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 10:03:53 AM (PDT) on Friday, September 25, 2026.
The magnitude 1.7 event occurred 10 km (6 miles) SE of Rio Dell, CA.
The hypocentral depth is 21 km (13 miles).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Friday, September 25, 2026 at 10:03:53 AM (PDT) Friday, September 25, 2026 at 17:03:53 (UTC) |
| Distance from |
Rio Dell, CA - 10 km (6 miles) SE (140 degrees) Hydesville, CA - 15 km (9 miles) SSE (156 degrees) Fortuna, CA - 22 km (14 miles) SSE (150 degrees) Ferndale, CA - 26 km (16 miles) SE (130 degrees) Humboldt Hill, CA - 36 km (22 miles) SSE (158 degrees) |
| Coordinates | 40 deg. 25.7 min. N (40.428N), 124 deg. 1.7 min. W (124.028W) |
| Depth | 21.36 km (13.30 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=9, Nph=9, Dmin=14.2 km, Rmss=0.11 sec, Erho=2.35 km, Erzz=1.00999999 km, Gp=244 degrees |
| Event ID# | nc75441742 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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