Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #907590: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 11:20:57 AM (PST) on Friday, November 21, 2025.
The magnitude 1.8 event occurred 25 km (16 miles) NE (34 degrees) of Foresthill, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.8 - local magnitude (Ml) |
| Time | Friday, November 21, 2025 at 11:20:57 AM (PST) Friday, November 21, 2025 at 19:20:57 (UTC) |
| Distance from |
Foresthill, CA - 25 km (16 miles) NE (34 degrees) Colfax, CA - 29 km (18 miles) ENE (65 degrees) Nevada City, CA - 32 km (20 miles) E (100 degrees) Grass Valley, CA - 35 km (22 miles) E (92 degrees) Alta Sierra, CA - 36 km (22 miles) ENE (75 degrees) |
| Coordinates | 39 deg. 12.6 min. N (39.210N), 120 deg. 39.1 min. W (120.652W) |
| Depth | 5.61 km (3.50 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=12, Nph=21, Dmin=11.3 km, Rmss=0.09 sec, Erho=1.14 km, Erzz=2.47000003 km, Gp=123 degrees |
| Event ID# | nc75267301 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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