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 7:39:00 PM (PDT) on Sunday, August 31, 2025.
The magnitude 1.1 event occurred 2 km (1 miles) S of Danville, CA.
The hypocentral depth is 14 km ( 9 miles).
| Magnitude | 1.1 - duration magnitude (Md) |
| Time | Sunday, August 31, 2025 at 7:39:00 PM (PDT) Monday, September 1, 2025 at 2:39:00 (UTC) |
| Distance from |
Danville, CA - 2 km (1 miles) S (187 degrees) San Ramon, CA - 4 km (2 miles) NW (324 degrees) Diablo, CA - 5 km (3 miles) SW (231 degrees) Alamo, CA - 6 km (3 miles) SSE (152 degrees) Blackhawk, CA - 8 km (5 miles) W (259 degrees) |
| Coordinates | 37 deg. 48.4 min. N (37.806N), 122 deg. 0.1 min. W (122.002W) |
| Depth | 13.94 km (8.70 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=5, Nph=5, Dmin=9.4 km, Rmss=0.05 sec, Erho=4.14 km, Erzz=5.46999979 km, Gp=181 degrees |
| Event ID# | nc75231477 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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