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 11:27:06 AM (PST) on Sunday, November 9, 2025.
The magnitude 1.5 event occurred 3 km (2 miles) SE of San Ramon, CA.
The hypocentral depth is 7 km ( 5 miles).
| Magnitude | 1.5 - duration magnitude (Md) |
| Time | Sunday, November 9, 2025 at 11:27:06 AM (PST) Sunday, November 9, 2025 at 19:27:06 (UTC) |
| Distance from |
San Ramon, CA - 3 km (2 miles) SE (131 degrees) Dublin, CA - 7 km (4 miles) NNW (347 degrees) Diablo, CA - 8 km (5 miles) S (177 degrees) Danville, CA - 8 km (5 miles) SSE (148 degrees) Blackhawk, CA - 8 km (5 miles) SSW (212 degrees) |
| Coordinates | 37 deg. 45.8 min. N (37.763N), 121 deg. 57.2 min. W (121.953W) |
| Depth | 7.46 km (4.60 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=10, Nph=10, Dmin=3.3 km, Rmss=0.10 sec, Erho=0.38 km, Erzz=0.720000029 km, Gp=78 degrees |
| Event ID# | nc75261151 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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