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 9:03:42 AM (PST) on Monday, February 2, 2026.
The magnitude 2.5 event occurred 4 km (2 miles) ESE of San Ramon, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 2.5 - duration magnitude (Md) |
| Time | Monday, February 2, 2026 at 9:03:42 AM (PST) Monday, February 2, 2026 at 17:03:42 (UTC) |
| Distance from |
San Ramon, CA - 4 km (2 miles) ESE (114 degrees) Dublin, CA - 7 km (4 miles) N (356 degrees) Blackhawk, CA - 7 km (4 miles) SSW (206 degrees) Diablo, CA - 8 km (5 miles) S (169 degrees) Danville, CA - 8 km (5 miles) SE (140 degrees) |
| Coordinates | 37 deg. 46.0 min. N (37.767N), 121 deg. 56.5 min. W (121.941W) |
| Depth | 7.87 km (4.90 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=25, Nph=24, Dmin=11.2 km, Rmss=0.09 sec, Erho=0.23 km, Erzz=0.579999983 km, Gp=46 degrees |
| Event ID# | nc75306016 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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