Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California


Version #6: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A minor earthquake occurred at 7:27:45 AM (PST) on Monday, February 2, 2026.
The magnitude 3.8 event occurred 5 km (3 miles) NNW of Dublin, CA.
The hypocentral depth is 8 km ( 5 miles).


Magnitude 3.8 - moment magnitude (Mw)
Time Monday, February 2, 2026 at 7:27:45 AM (PST)
Monday, February 2, 2026 at 15:27:45 (UTC)
Distance from Dublin, CA - 5 km (3 miles) NNW (346 degrees)
San Ramon, CA - 5 km (3 miles) SSE (147 degrees)
Blackhawk, CA - 9 km (6 miles) SSW (203 degrees)
Diablo, CA - 10 km (6 miles) S (176 degrees)
Danville, CA - 10 km (6 miles) SSE (152 degrees)
Coordinates 37 deg. 44.7 min. N (37.745N), 121 deg. 57.0 min. W (121.949W)
Depth 8.20 km (5.10 miles)
Quality Good
Location Quality Parameters Nst=186, Nph=195, Dmin=4.2 km, Rmss=0.22 sec, Erho=0.12 km, Erzz=0.24 km, Gp=15 degrees
Event ID# nc75305826
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For more information, see https://earthquake.usgs.gov

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