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 3:57:57 PM (PDT) on Monday, September 22, 2025.
The magnitude 1.0 event occurred 8 km (5 miles) NW of Broadmoor, CA.
The hypocentral depth is 13 km ( 8 miles).


Magnitude 1.0 - duration magnitude (Md)
Time Monday, September 22, 2025 at 3:57:57 PM (PDT)
Monday, September 22, 2025 at 22:57:57 (UTC)
Distance from Broadmoor, CA - 8 km (5 miles) NW (320 degrees)
Daly City, CA - 9 km (5 miles) NW (311 degrees)
Colma, CA - 10 km (6 miles) NW (316 degrees)
San Francisco, CA - 11 km (7 miles) WSW (252 degrees)
Marin City, CA - 14 km (9 miles) SSW (192 degrees)
Coordinates 37 deg. 44.6 min. N (37.743N), 122 deg. 32.5 min. W (122.542W)
Depth 13.00 km (8.10 miles)
Quality Fair
Location Quality Parameters Nst=9, Nph=9, Dmin=8.3 km, Rmss=0.03 sec, Erho=1.74 km, Erzz=2.4000001 km, Gp=194 degrees
Event ID# nc75240672
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For more information, see https://earthquake.usgs.gov

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