Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 7:39:26 PM (PST) on Saturday, November 15, 2025.
The magnitude 0.9 event occurred 4 km (2 miles) SE of San Ramon, CA.
The hypocentral depth is 9 km ( 5 miles).
| Magnitude | 0.9 - duration magnitude (Md) |
| Time | Saturday, November 15, 2025 at 7:39:26 PM (PST) Sunday, November 16, 2025 at 3:39:26 (UTC) |
| Distance from |
San Ramon, CA - 4 km (2 miles) SE (125 degrees) Dublin, CA - 7 km (4 miles) N (353 degrees) Blackhawk, CA - 7 km (5 miles) SSW (207 degrees) Diablo, CA - 8 km (5 miles) S (172 degrees) Danville, CA - 8 km (5 miles) SE (144 degrees) |
| Coordinates | 37 deg. 45.7 min. N (37.762N), 121 deg. 56.7 min. W (121.945W) |
| Depth | 8.52 km (5.30 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=16, Nph=19, Dmin=3.0 km, Rmss=0.04 sec, Erho=0.22 km, Erzz=0.39 km, Gp=81 degrees |
| Event ID# | nc75263986 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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