Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, California


Version #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 1:41:50 AM (PDT) on Saturday, September 11, 2021.
The magnitude 0.3 event occurred 19 km (12 miles) ESE of Anza, CA.
The hypocentral depth is 15 km ( 9 miles).


Magnitude 0.3 - local magnitude (Ml)
Time Saturday, September 11, 2021 at 1:41:50 AM (PDT)
Saturday, September 11, 2021 at 8:41:50 (UTC)
Distance from Anza, CA - 19 km (12 miles) ESE (106 degrees)
La Quinta, CA - 24 km (15 miles) SW (223 degrees)
Palm Desert, CA - 26 km (16 miles) SSW (203 degrees)
Rancho Mirage, CA - 27 km (17 miles) SSW (194 degrees)
Indian Wells, CA - 28 km (18 miles) SW (214 degrees)
Coordinates 33 deg. 30.5 min. N (33.508N), 116 deg. 28.9 min. W (116.482W)
Depth 14.97 km (9.3 miles)
Quality Excellent
Location Quality Parameters Nst=29, Nph=51, Dmin=5.5 km, Rmss=0.14 sec, Erho=0.21 km, Erzz=0.41 km, Gp=63 degrees
Event ID# ci39805303
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