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 4:53:43 AM (PDT) on Wednesday, August 13, 2025.
The magnitude 1.6 event occurred 2 km (1 miles) W of Alamo, CA.
The hypocentral depth is 9 km ( 6 miles).
| Magnitude | 1.6 - duration magnitude (Md) |
| Time | Wednesday, August 13, 2025 at 4:53:43 AM (PDT) Wednesday, August 13, 2025 at 11:53:43 (UTC) |
| Distance from |
Alamo, CA - 2 km (1 miles) W (260 degrees) Saranap, CA - 5 km (3 miles) SSE (155 degrees) Danville, CA - 6 km (3 miles) WNW (301 degrees) Moraga, CA - 7 km (4 miles) ENE (78 degrees) Walnut Creek, CA - 7 km (4 miles) S (172 degrees) |
| Coordinates | 37 deg. 50.8 min. N (37.847N), 122 deg. 3.2 min. W (122.054W) |
| Depth | 9.16 km (5.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=8, Nph=8, Dmin=5.6 km, Rmss=0.06 sec, Erho=0.49 km, Erzz=1.73000002 km, Gp=102 degrees |
| Event ID# | nc75222642 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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