Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #6: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A minor earthquake occurred at 9:38:45 AM (PST) on Sunday, November 9, 2025.
The magnitude 3.8 event occurred 3 km (2 miles) SE of San Ramon, CA.
The hypocentral depth is 9 km ( 6 miles).
| Magnitude | 3.8 - moment magnitude (Mw) |
| Time | Sunday, November 9, 2025 at 9:38:45 AM (PST) Sunday, November 9, 2025 at 17:38:45 (UTC) |
| Distance from |
San Ramon, CA - 3 km (2 miles) SE (138 degrees) Dublin, CA - 6 km (4 miles) NNW (347 degrees) Danville, CA - 8 km (5 miles) SSE (150 degrees) Blackhawk, CA - 8 km (5 miles) SSW (209 degrees) Diablo, CA - 9 km (5 miles) S (177 degrees) |
| Coordinates | 37 deg. 45.5 min. N (37.758N), 121 deg. 57.2 min. W (121.953W) |
| Depth | 9.24 km (5.70 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=72, Nph=81, Dmin=3.2 km, Rmss=0.99 sec, Erho=1.55 km, Erzz=1.627 km, Gp=29 degrees |
| Event ID# | nc75260871 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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