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 micro earthquake occurred at 5:14:31 PM (PDT) on Thursday, September 25, 2025.
The magnitude 0.9 event occurred 13 km (8 miles) ESE of Angwin, CA.
The hypocentral depth is -0.29 km (-0.20 miles).
| Magnitude | 0.9 - duration magnitude (Md) |
| Time | Thursday, September 25, 2025 at 5:14:31 PM (PDT) Friday, September 26, 2025 at 0:14:31 (UTC) |
| Distance from |
Angwin, CA - 13 km (8 miles) ESE (106 degrees) Saint Helena, CA - 15 km (9 miles) ENE (73 degrees) Yountville, CA - 17 km (10 miles) NNE (17 degrees) Calistoga, CA - 24 km (15 miles) E (99 degrees) Kenwood, CA - 25 km (16 miles) NE (55 degrees) |
| Coordinates | 38 deg. 32.6 min. N (38.544N), 122 deg. 18.3 min. W (122.305W) |
| Depth | -0.29 km (-0.20 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=14, Nph=16, Dmin=5.6 km, Rmss=0.21 sec, Erho=0.43 km, Erzz=1.9 km, Gp=99 degrees |
| Event ID# | nc75242102 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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