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 11:16:36 AM (PST) on Sunday, November 9, 2025.
The magnitude 1.6 event occurred 4 km (2 miles) ESE of San Ramon, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.6 - duration magnitude (Md) |
| Time | Sunday, November 9, 2025 at 11:16:36 AM (PST) Sunday, November 9, 2025 at 19:16:36 (UTC) |
| Distance from |
San Ramon, CA - 4 km (2 miles) ESE (120 degrees) Dublin, CA - 7 km (4 miles) N (355 degrees) Blackhawk, CA - 7 km (4 miles) SSW (206 degrees) Diablo, CA - 8 km (5 miles) S (170 degrees) Danville, CA - 8 km (5 miles) SE (142 degrees) |
| Coordinates | 37 deg. 45.9 min. N (37.764N), 121 deg. 56.6 min. W (121.943W) |
| Depth | 8.26 km (5.10 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=10, Nph=10, Dmin=2.7 km, Rmss=0.02 sec, Erho=0.32 km, Erzz=0.560000002 km, Gp=81 degrees |
| Event ID# | nc75261116 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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