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

A micro earthquake occurred at 9:10:59 PM (PDT) on Monday, September 13, 2021.
The magnitude 0.4 event occurred 12 km (7 miles) SW of La Quinta, CA.
The hypocentral depth is 13 km ( 8 miles).


Magnitude 0.4 - local magnitude (Ml)
Time Monday, September 13, 2021 at 9:10:59 PM (PDT)
Tuesday, September 14, 2021 at 4:10:59 (UTC)
Distance from La Quinta, CA - 12 km (7 miles) SW (215 degrees)
Palm Desert, CA - 16 km (10 miles) S (183 degrees)
Indian Wells, CA - 17 km (11 miles) SSW (204 degrees)
Rancho Mirage, CA - 18 km (11 miles) S (172 degrees)
Indio, CA - 23 km (14 miles) SW (224 degrees)
Coordinates 33 deg. 34.5 min. N (33.575N), 116 deg. 23.1 min. W (116.385W)
Depth 13.47 km (8.4 miles)
Quality Fair
Location Quality Parameters Nst=8, Nph=16, Dmin=7.8 km, Rmss=0.07 sec, Erho=0.69 km, Erzz=0.41 km, Gp=189 degrees
Event ID# ci39807743
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