Recent Earthquakes in California and Nevada
== PRELIMINARY EVENT 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 quarry occurred at 11:58:50 AM (PDT) on Wednesday, July 30, 2025.
The magnitude 1.3 event (a probable quarry explosion) occurred 5 km (3 miles) ENE (78 degrees) of Vallejo, CA.
The hypocentral depth is -0.07 km (-0.00 miles).
| Magnitude | 1.3 - duration magnitude (Md) |
| Time | Wednesday, July 30, 2025 at 11:58:50 AM (PDT) Wednesday, July 30, 2025 at 18:58:50 (UTC) |
| Distance from |
Vallejo, CA - 5 km (3 miles) ENE (78 degrees) Crockett, CA - 8 km (5 miles) NNE (21 degrees) Benicia, CA - 8 km (5 miles) NNW (347 degrees) American Canyon, CA - 9 km (6 miles) SE (129 degrees) Martinez, CA - 12 km (8 miles) NNW (341 degrees) |
| Coordinates | 38 deg. 7.4 min. N (38.123N), 122 deg. 10.8 min. W (122.180W) |
| Depth | -0.07 km (-0.00 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=13, Nph=13, Dmin=2.7 km, Rmss=0.08 sec, Erho=0.21 km, Erzz=31.61 km, Gp=99 degrees |
| Event ID# | nc75217057 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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