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 4:42:39 PM (PDT) on Tuesday, July 22, 2025.
The magnitude 0.9 event occurred 6 km (4 miles) N of Rio Vista, CA.
The hypocentral depth is 15 km ( 9 miles).
| Magnitude | 0.9 - duration magnitude (Md) |
| Time | Tuesday, July 22, 2025 at 4:42:39 PM (PDT) Tuesday, July 22, 2025 at 23:42:39 (UTC) |
| Distance from |
Rio Vista, CA - 6 km (4 miles) N (353 degrees) Walnut Grove, CA - 17 km (10 miles) WSW (258 degrees) Bethel Island, CA - 22 km (14 miles) NNW (347 degrees) Oakley, CA - 24 km (15 miles) N (3 degrees) Thornton, CA - 24 km (15 miles) W (266 degrees) |
| Coordinates | 38 deg. 12.7 min. N (38.211N), 121 deg. 42.0 min. W (121.700W) |
| Depth | 14.89 km (9.30 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=9, Nph=9, Dmin=18.1 km, Rmss=0.34 sec, Erho=10.09 km, Erzz=28.3799992 km, Gp=206 degrees |
| Event ID# | nc75213707 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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