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 11:09:48 AM (PST) on Monday, February 2, 2026.
The magnitude 1.6 event occurred 3 km (2 miles) SE of San Ramon, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.6 - duration magnitude (Md) |
| Time | Monday, February 2, 2026 at 11:09:48 AM (PST) Monday, February 2, 2026 at 19:09:48 (UTC) |
| Distance from |
San Ramon, CA - 3 km (2 miles) SE (126 degrees) Dublin, CA - 7 km (4 miles) N (351 degrees) Blackhawk, CA - 7 km (5 miles) SSW (209 degrees) Diablo, CA - 8 km (5 miles) S (174 degrees) Danville, CA - 8 km (5 miles) SE (145 degrees) |
| Coordinates | 37 deg. 45.8 min. N (37.763N), 121 deg. 56.9 min. W (121.948W) |
| Depth | 5.68 km (3.50 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=10, Nph=10, Dmin=10.7 km, Rmss=0.10 sec, Erho=0.33 km, Erzz=1.70000005 km, Gp=80 degrees |
| Event ID# | nc75306116 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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