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 3:27:56 AM (PST) on Friday, November 21, 2025.
The magnitude 1.7 event occurred 5 km (3 miles) ESE of San Ramon, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Friday, November 21, 2025 at 3:27:56 AM (PST) Friday, November 21, 2025 at 11:27:56 (UTC) |
| Distance from |
San Ramon, CA - 5 km (3 miles) ESE (120 degrees) Dublin, CA - 6 km (4 miles) N (4 degrees) Blackhawk, CA - 7 km (4 miles) SSW (196 degrees) Diablo, CA - 9 km (5 miles) SSE (164 degrees) Danville, CA - 9 km (6 miles) SE (139 degrees) |
| Coordinates | 37 deg. 45.5 min. N (37.758N), 121 deg. 55.9 min. W (121.931W) |
| Depth | 8.00 km (5.00 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=12, Nph=12, Dmin=3.1 km, Rmss=0.05 sec, Erho=0.25 km, Erzz=0.850000024 km, Gp=69 degrees |
| Event ID# | nc75267131 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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