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 1:27:42 PM (PDT) on Friday, September 10, 2021.
The magnitude 0.4 event occurred 10 km (6 miles) S of Idyllwild, CA.
The hypocentral depth is 13 km ( 8 miles).


Magnitude 0.4 - local magnitude (Ml)
Time Friday, September 10, 2021 at 1:27:42 PM (PDT)
Friday, September 10, 2021 at 20:27:42 (UTC)
Distance from Idyllwild, CA - 10 km (6 miles) S (173 degrees)
Anza, CA - 11 km (7 miles) NNW (344 degrees)
Valle Vista, CA - 20 km (13 miles) ESE (122 degrees)
Palm Springs, CA - 25 km (16 miles) SW (220 degrees)
Cathedral City, CA - 26 km (16 miles) WSW (237 degrees)
Coordinates 33 deg. 39.0 min. N (33.650N), 116 deg. 42.3 min. W (116.706W)
Depth 13.47 km (8.4 miles)
Quality Excellent
Location Quality Parameters Nst=16, Nph=27, Dmin=3.6 km, Rmss=0.08 sec, Erho=0.21 km, Erzz=0.37 km, Gp=73 degrees
Event ID# ci39804695
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