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 8:33:18 PM (PDT) on Wednesday, September 3, 2025.
The magnitude 0.8 event occurred 2 km (1 miles) WNW of Pacifica, CA.
The hypocentral depth is 8 km ( 5 miles).


Magnitude 0.8 - duration magnitude (Md)
Time Wednesday, September 3, 2025 at 8:33:18 PM (PDT)
Thursday, September 4, 2025 at 3:33:18 (UTC)
Distance from Pacifica, CA - 2 km (1 miles) WNW (295 degrees)
Colma, CA - 7 km (5 miles) SW (216 degrees)
Broadmoor, CA - 8 km (5 miles) SSW (199 degrees)
Daly City, CA - 9 km (5 miles) SSW (207 degrees)
San Bruno, CA - 9 km (5 miles) W (264 degrees)
Coordinates 37 deg. 37.4 min. N (37.623N), 122 deg. 30.6 min. W (122.510W)
Depth 7.57 km (4.70 miles)
Quality Fair
Location Quality Parameters Nst=14, Nph=19, Dmin=3.5 km, Rmss=0.03 sec, Erho=0.43 km, Erzz=0.33 km, Gp=187 degrees
Event ID# nc75232942
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