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 0:35:35 AM (PDT) on Saturday, October 18, 2025.
The magnitude 1.4 event occurred 1 km (1 miles) S of Angwin, CA.
The hypocentral depth is 2 km ( 2 miles).
| Magnitude | 1.4 - duration magnitude (Md) |
| Time | Saturday, October 18, 2025 at 0:35:35 AM (PDT) Saturday, October 18, 2025 at 7:35:35 (UTC) |
| Distance from |
Angwin, CA - 1 km (1 miles) S (179 degrees) Saint Helena, CA - 7 km (4 miles) NNE (15 degrees) Calistoga, CA - 11 km (7 miles) E (97 degrees) Kenwood, CA - 19 km (12 miles) NNE (26 degrees) Yountville, CA - 20 km (12 miles) NNW (337 degrees) |
| Coordinates | 38 deg. 34.0 min. N (38.566N), 122 deg. 27.0 min. W (122.450W) |
| Depth | 2.49 km (1.50 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=17, Nph=17, Dmin=8.3 km, Rmss=0.07 sec, Erho=0.34 km, Erzz=2.96000004 km, Gp=129 degrees |
| Event ID# | nc75250926 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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