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 5:55:36 AM (PST) on Saturday, December 6, 2025.
The magnitude 2.6 event occurred 16 km (10 miles) SSE of Livermore, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 2.6 - duration magnitude (Md)
Time Saturday, December 6, 2025 at 5:55:36 AM (PST)
Saturday, December 6, 2025 at 13:55:36 (UTC)
Distance from Livermore, CA - 16 km (10 miles) SSE (151 degrees)
Pleasanton, CA - 21 km (13 miles) SE (125 degrees)
East Foothills, CA - 23 km (14 miles) NNE (33 degrees)
Milpitas, CA - 25 km (15 miles) NE (56 degrees)
Alum Rock, CA - 25 km (15 miles) NNE (33 degrees)
Coordinates 37 deg. 33.2 min. N (37.553N), 121 deg. 40.6 min. W (121.676W)
Depth 5.16 km (3.20 miles)
Quality Good
Location Quality Parameters Nst=65, Nph=61, Dmin=10.2 km, Rmss=0.13 sec, Erho=0.18 km, Erzz=0.75999999 km, Gp=60 degrees
Event ID# nc75275231
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For more information, see https://earthquake.usgs.gov

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