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 2:45:11 AM (PDT) on Thursday, September 25, 2025.
The magnitude 1.1 event occurred 1 km (1 miles) W of Diablo, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.1 - duration magnitude (Md) |
| Time | Thursday, September 25, 2025 at 2:45:11 AM (PDT) Thursday, September 25, 2025 at 9:45:11 (UTC) |
| Distance from |
Diablo, CA - 1 km (1 miles) W (280 degrees) Danville, CA - 3 km (2 miles) ENE (57 degrees) Alamo, CA - 6 km (3 miles) ESE (106 degrees) San Ramon, CA - 6 km (4 miles) N (5 degrees) Blackhawk, CA - 6 km (4 miles) WNW (288 degrees) |
| Coordinates | 37 deg. 50.2 min. N (37.837N), 121 deg. 58.3 min. W (121.971W) |
| Depth | 6.31 km (3.90 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=11, Nph=10, Dmin=3.1 km, Rmss=0.06 sec, Erho=0.34 km, Erzz=0.569999993 km, Gp=70 degrees |
| Event ID# | nc75241767 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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