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 8:44:04 PM (PDT) on Friday, October 17, 2025.
The magnitude 1.4 event occurred 6 km (4 miles) S of Calistoga, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.4 - duration magnitude (Md) |
| Time | Friday, October 17, 2025 at 8:44:04 PM (PDT) Saturday, October 18, 2025 at 3:44:04 (UTC) |
| Distance from |
Calistoga, CA - 6 km (4 miles) S (176 degrees) Saint Helena, CA - 9 km (6 miles) WNW (285 degrees) Angwin, CA - 12 km (8 miles) WSW (244 degrees) Kenwood, CA - 13 km (8 miles) N (349 degrees) Santa Rosa, CA - 14 km (9 miles) NE (52 degrees) |
| Coordinates | 38 deg. 31.7 min. N (38.528N), 122 deg. 34.5 min. W (122.575W) |
| Depth | 8.21 km (5.10 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=12, Nph=10, Dmin=12.6 km, Rmss=0.04 sec, Erho=0.51 km, Erzz=1.25 km, Gp=153 degrees |
| Event ID# | nc75250871 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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