Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 7:14:28 PM (PDT) on Saturday, September 6, 2025.
The magnitude 1.0 event occurred 7 km (4 miles) SW of Calistoga, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.0 - duration magnitude (Md) |
| Time | Saturday, September 6, 2025 at 7:14:28 PM (PDT) Sunday, September 7, 2025 at 2:14:28 (UTC) |
| Distance from |
Calistoga, CA - 7 km (4 miles) SW (229 degrees) Larkfield-Wikiup, CA - 10 km (6 miles) ENE (74 degrees) Santa Rosa, CA - 12 km (7 miles) NNE (30 degrees) Roseland, CA - 15 km (9 miles) NNE (31 degrees) Saint Helena, CA - 15 km (9 miles) WNW (285 degrees) |
| Coordinates | 38 deg. 32.4 min. N (38.539N), 122 deg. 38.2 min. W (122.637W) |
| Depth | 6.46 km (4.00 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=21, Nph=24, Dmin=7.3 km, Rmss=0.11 sec, Erho=0.32 km, Erzz=0.71 km, Gp=85 degrees |
| Event ID# | nc75234272 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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