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 4:54:35 PM (PDT) on Wednesday, July 23, 2025.
The magnitude 1.2 event occurred 4 km (2 miles) S of Larkfield-Wikiup, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 1.2 - duration magnitude (Md) |
| Time | Wednesday, July 23, 2025 at 4:54:35 PM (PDT) Wednesday, July 23, 2025 at 23:54:35 (UTC) |
| Distance from |
Larkfield-Wikiup, CA - 4 km (2 miles) S (190 degrees) Santa Rosa, CA - 6 km (4 miles) NW (305 degrees) Roseland, CA - 7 km (4 miles) NNW (337 degrees) Windsor, CA - 9 km (6 miles) SSE (147 degrees) Sebastopol, CA - 10 km (6 miles) NE (34 degrees) |
| Coordinates | 38 deg. 28.7 min. N (38.478N), 122 deg. 45.5 min. W (122.759W) |
| Depth | 6.66 km (4.10 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=27, Nph=30, Dmin=12.1 km, Rmss=0.11 sec, Erho=0.22 km, Erzz=0.66 km, Gp=57 degrees |
| Event ID# | nc75214167 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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