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 10:06:56 AM (PST) on Friday, January 9, 2026.
The magnitude 2.1 event occurred 4 km (3 miles) ESE of San Ramon, CA.
The hypocentral depth is 4 km ( 2 miles).


Magnitude 2.1 - duration magnitude (Md)
Time Friday, January 9, 2026 at 10:06:56 AM (PST)
Friday, January 9, 2026 at 18:06:56 (UTC)
Distance from San Ramon, CA - 4 km (3 miles) ESE (109 degrees)
Blackhawk, CA - 6 km (4 miles) SSW (198 degrees)
Dublin, CA - 7 km (4 miles) N (4 degrees)
Diablo, CA - 8 km (5 miles) SSE (162 degrees)
Danville, CA - 9 km (5 miles) SE (135 degrees)
Coordinates 37 deg. 46.0 min. N (37.767N), 121 deg. 55.8 min. W (121.930W)
Depth 4.08 km (2.50 miles)
Quality Good
Location Quality Parameters Nst=9, Nph=8, Dmin=11.6 km, Rmss=0.06 sec, Erho=0.26 km, Erzz=1.75999999 km, Gp=103 degrees
Event ID# nc75293086
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