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 3:14:57 PM (PDT) on Saturday, September 11, 2021.
The magnitude 1.1 event occurred 10 km (6 miles) NNW of Broadmoor, CA.
The hypocentral depth is 12 km ( 8 miles).


Magnitude 1.1 - duration magnitude (Md)
Time Saturday, September 11, 2021 at 3:14:57 PM (PDT)
Saturday, September 11, 2021 at 22:14:57 (UTC)
Distance from Broadmoor, CA - 10 km (6 miles) NNW (330 degrees)
Daly City, CA - 10 km (6 miles) NW (322 degrees)
San Francisco, CA - 11 km (7 miles) W (263 degrees)
Colma, CA - 12 km (7 miles) NW (324 degrees)
Marin City, CA - 12 km (7 miles) SSW (192 degrees)
Coordinates 37 deg. 45.8 min. N (37.763N), 122 deg. 32.3 min. W (122.538W)
Depth 12.49 km (7.8 miles)
Quality Good
Location Quality Parameters Nst=17, Nph=18, Dmin=9.6 km, Rmss=0.07 sec, Erho=0.34 km, Erzz=0.81 km, Gp=96 degrees
Event ID# nc73623766
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For more information, see https://earthquake.usgs.gov

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