Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #4: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A minor earthquake occurred at 6:29:56 AM (PST) on Monday, February 2, 2026.
The magnitude 3.1 event occurred 4 km (3 miles) SE of San Ramon, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 3.1 - local magnitude (Ml) |
| Time | Monday, February 2, 2026 at 6:29:56 AM (PST) Monday, February 2, 2026 at 14:29:56 (UTC) |
| Distance from |
San Ramon, CA - 4 km (3 miles) SE (141 degrees) Dublin, CA - 6 km (3 miles) N (349 degrees) Blackhawk, CA - 9 km (5 miles) SSW (205 degrees) Diablo, CA - 9 km (6 miles) S (175 degrees) Danville, CA - 9 km (6 miles) SSE (150 degrees) |
| Coordinates | 37 deg. 45.1 min. N (37.751N), 121 deg. 56.9 min. W (121.948W) |
| Depth | 8.14 km (5.10 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=61, Nph=71, Dmin=3.8 km, Rmss=0.55 sec, Erho=1.45 km, Erzz=1.691 km, Gp=22 degrees |
| Event ID# | nc75305676 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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