Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

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


Version #4: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 12:11:14 PM (PDT) on Wednesday, September 3, 2025.
The magnitude 0.7 event occurred 4 km (3 miles) SE of Pacifica, CA.
The hypocentral depth is 8 km ( 5 miles).


Magnitude 0.7 - duration magnitude (Md)
Time Wednesday, September 3, 2025 at 12:11:14 PM (PDT)
Wednesday, September 3, 2025 at 19:11:14 (UTC)
Distance from Pacifica, CA - 4 km (3 miles) SE (133 degrees)
San Bruno, CA - 6 km (4 miles) SW (217 degrees)
Millbrae, CA - 6 km (4 miles) WSW (258 degrees)
Hillsborough, CA - 7 km (4 miles) WNW (284 degrees)
Montara, CA - 8 km (5 miles) NE (48 degrees)
Coordinates 37 deg. 35.3 min. N (37.588N), 122 deg. 27.1 min. W (122.452W)
Depth 8.02 km (5.00 miles)
Quality Excellent
Location Quality Parameters Nst=9, Nph=11, Dmin=2.9 km, Rmss=0.05 sec, Erho=0.43 km, Erzz=1.07 km, Gp=83 degrees
Event ID# nc75232762
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For more information, see https://earthquake.usgs.gov

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