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 4:53:17 AM (PDT) on Wednesday, August 13, 2025.
The magnitude 1.1 event occurred 2 km (1 miles) W of Alamo, CA.
The hypocentral depth is 9 km ( 5 miles).
| Magnitude | 1.1 - duration magnitude (Md) |
| Time | Wednesday, August 13, 2025 at 4:53:17 AM (PDT) Wednesday, August 13, 2025 at 11:53:17 (UTC) |
| Distance from |
Alamo, CA - 2 km (1 miles) W (267 degrees) Saranap, CA - 4 km (3 miles) SSE (152 degrees) Danville, CA - 6 km (3 miles) NW (304 degrees) Walnut Creek, CA - 6 km (4 miles) S (170 degrees) Moraga, CA - 7 km (4 miles) ENE (77 degrees) |
| Coordinates | 37 deg. 51.0 min. N (37.849N), 122 deg. 3.1 min. W (122.052W) |
| Depth | 8.58 km (5.30 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=7, Nph=7, Dmin=11.8 km, Rmss=0.07 sec, Erho=0.42 km, Erzz=2.53999996 km, Gp=103 degrees |
| Event ID# | nc75222637 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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