Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

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


Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 11:57:26 AM (PDT) on Sunday, July 27, 2025.
The magnitude 0.7 event occurred 3 km (2 miles) NNE (30 degrees) of Pacifica, CA.
The hypocentral depth is 8 km ( 5 miles).


Magnitude 0.7 - duration magnitude (Md)
Time Sunday, July 27, 2025 at 11:57:26 AM (PDT)
Sunday, July 27, 2025 at 18:57:26 (UTC)
Distance from Pacifica, CA - 3 km (2 miles) NNE (30 degrees)
Colma, CA - 4 km (3 miles) S (191 degrees)
Broadmoor, CA - 5 km (3 miles) SSE (167 degrees)
San Bruno, CA - 5 km (3 miles) W (281 degrees)
Daly City, CA - 6 km (4 miles) S (182 degrees)
Coordinates 37 deg. 38.3 min. N (37.639N), 122 deg. 28.1 min. W (122.469W)
Depth 7.84 km (4.90 miles)
Quality Good
Location Quality Parameters Nst=9, Nph=12, Dmin=0.6 km, Rmss=0.05 sec, Erho=0.75 km, Erzz=0.56 km, Gp=127 degrees
Event ID# nc75215867
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