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 8:23:31 AM (PST) on Friday, January 9, 2026.
The magnitude 1.1 event occurred 6 km (4 miles) NE (41 degrees) of Alamo, CA.
The hypocentral depth is 8 km ( 5 miles).


Magnitude 1.1 - duration magnitude (Md)
Time Friday, January 9, 2026 at 8:23:31 AM (PST)
Friday, January 9, 2026 at 16:23:31 (UTC)
Distance from Alamo, CA - 6 km (4 miles) NE (41 degrees)
Walnut Creek, CA - 7 km (4 miles) E (101 degrees)
Waldon, CA - 7 km (4 miles) ESE (120 degrees)
Diablo, CA - 7 km (4 miles) NNW (340 degrees)
Clayton, CA - 7 km (4 miles) SW (219 degrees)
Coordinates 37 deg. 53.6 min. N (37.894N), 121 deg. 59.1 min. W (121.985W)
Depth 8.36 km (5.20 miles)
Quality Good
Location Quality Parameters Nst=7, Nph=7, Dmin=3.9 km, Rmss=0.04 sec, Erho=0.49 km, Erzz=0.790000021 km, Gp=134 degrees
Event ID# nc75293021
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