Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 4:54:11 AM (PDT) on Wednesday, August 13, 2025.
The magnitude 1.0 event occurred 2 km (1 miles) W of Alamo, CA.
The hypocentral depth is 7 km ( 5 miles).
| Magnitude | 1.0 - duration magnitude (Md) |
| Time | Wednesday, August 13, 2025 at 4:54:11 AM (PDT) Wednesday, August 13, 2025 at 11:54:11 (UTC) |
| Distance from |
Alamo, CA - 2 km (1 miles) W (274 degrees) Saranap, CA - 4 km (3 miles) SSE (150 degrees) Danville, CA - 6 km (3 miles) NW (306 degrees) Walnut Creek, CA - 6 km (4 miles) S (169 degrees) Moraga, CA - 7 km (4 miles) ENE (75 degrees) |
| Coordinates | 37 deg. 51.1 min. N (37.851N), 122 deg. 3.1 min. W (122.051W) |
| Depth | 7.44 km (4.60 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=16, Nph=20, Dmin=4.0 km, Rmss=0.07 sec, Erho=0.23 km, Erzz=0.58 km, Gp=62 degrees |
| Event ID# | nc75222652 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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