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 2:36:01 AM (PST) on Sunday, February 1, 2026.
The magnitude 1.4 event occurred 5 km (3 miles) ESE of San Ramon, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.4 - duration magnitude (Md) |
| Time | Sunday, February 1, 2026 at 2:36:01 AM (PST) Sunday, February 1, 2026 at 10:36:01 (UTC) |
| Distance from |
San Ramon, CA - 5 km (3 miles) ESE (115 degrees) Dublin, CA - 7 km (4 miles) N (3 degrees) Blackhawk, CA - 7 km (4 miles) SSW (198 degrees) Diablo, CA - 8 km (5 miles) SSE (164 degrees) Danville, CA - 9 km (6 miles) SE (137 degrees) |
| Coordinates | 37 deg. 45.8 min. N (37.763N), 121 deg. 55.9 min. W (121.931W) |
| Depth | 5.98 km (3.70 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=8, Nph=8, Dmin=12.1 km, Rmss=0.02 sec, Erho=0.29 km, Erzz=2.21000004 km, Gp=75 degrees |
| Event ID# | nc75305066 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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