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== 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 7:27:00 PM (PDT) on Tuesday, September 15, 2020.
The magnitude 1.6 event occurred 5 km (3 miles) SW of Broadmoor, CA.
The hypocentral depth is 7 km ( 5 miles).



Magnitude 1.6 - duration magnitude (Md)
Time Tuesday, September 15, 2020 at 7:27:00 PM (PDT)
Wednesday, September 16, 2020 at 2:27:00 (UTC)
Distance from Broadmoor, CA - 5 km (3 miles) SW (230 degrees)
Pacifica, CA - 6 km (4 miles) NW (324 degrees)
Daly City, CA - 6 km (4 miles) SW (235 degrees)
Colma, CA - 6 km (4 miles) WSW (250 degrees)
South San Francisco, CA - 10 km (6 miles) W (272 degrees)
Coordinates 37 deg. 39.4 min. N (37.657N), 122 deg. 31.6 min. W (122.526W)
Depth 7.44 km (4.6 miles)
Quality Good
Location Quality Parameters Nst=11, Nph=11, Dmin=5.1 km, Rmss=0.03 sec, Erho=0.39 km, Erzz=0.76 km, Gp=113 degrees
Event ID# nc73458546
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