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 4:28:16 PM (PST) on Friday, November 28, 2025.
The magnitude 0.9 event occurred 3 km (2 miles) SSW of Colma, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 0.9 - duration magnitude (Md)
Time Friday, November 28, 2025 at 4:28:16 PM (PST)
Saturday, November 29, 2025 at 0:28:16 (UTC)
Distance from Colma, CA - 3 km (2 miles) SSW (209 degrees)
Broadmoor, CA - 4 km (2 miles) S (172 degrees)
Pacifica, CA - 4 km (3 miles) NNE (12 degrees)
Daly City, CA - 4 km (3 miles) SSW (192 degrees)
South San Francisco, CA - 6 km (4 miles) W (268 degrees)
Coordinates 37 deg. 39.2 min. N (37.653N), 122 deg. 28.6 min. W (122.477W)
Depth 4.66 km (2.90 miles)
Quality Good
Location Quality Parameters Nst=9, Nph=9, Dmin=1.7 km, Rmss=0.04 sec, Erho=0.5 km, Erzz=0.600000024 km, Gp=157 degrees
Event ID# nc75271311
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