Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 7:23:04 AM (PST) on Monday, February 2, 2026.
The magnitude 2.9 event occurred 4 km (3 miles) SE of San Ramon, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 2.9 - duration magnitude (Md) |
| Time | Monday, February 2, 2026 at 7:23:04 AM (PST) Monday, February 2, 2026 at 15:23:04 (UTC) |
| Distance from |
San Ramon, CA - 4 km (3 miles) SE (132 degrees) Dublin, CA - 6 km (4 miles) N (355 degrees) Blackhawk, CA - 8 km (5 miles) SSW (201 degrees) Diablo, CA - 9 km (6 miles) S (171 degrees) Danville, CA - 9 km (6 miles) SE (146 degrees) |
| Coordinates | 37 deg. 45.2 min. N (37.754N), 121 deg. 56.5 min. W (121.941W) |
| Depth | 7.61 km (4.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=129, Nph=134, Dmin=3.8 km, Rmss=0.24 sec, Erho=0.14 km, Erzz=0.2 km, Gp=29 degrees |
| Event ID# | nc75305811 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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