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 11:32:53 AM (PDT) on Saturday, September 11, 2021.
The magnitude 1.0 event occurred 2 km (1 miles) NW of Lake Henshaw, CA.
The hypocentral depth is 8 km ( 5 miles).


Magnitude 1.0 - local magnitude (Ml)
Time Saturday, September 11, 2021 at 11:32:53 AM (PDT)
Saturday, September 11, 2021 at 18:32:53 (UTC)
Distance from Lake Henshaw, CA - 2 km (1 miles) NW (313 degrees)
Warner Springs, CA - 14 km (8 miles) WSW (256 degrees)
Palomar Observatory, CA - 14 km (9 miles) SE (145 degrees)
Aguanga, CA - 23 km (14 miles) SSE (159 degrees)
Valley Center, CA - 24 km (15 miles) E (81 degrees)
Coordinates 33 deg. 15.1 min. N (33.252N), 116 deg. 46.6 min. W (116.776W)
Depth 7.92 km (4.9 miles)
Quality Excellent
Location Quality Parameters Nst=44, Nph=81, Dmin=2.4 km, Rmss=0.14 sec, Erho=0.13 km, Erzz=0.39 km, Gp=41 degrees
Event ID# ci39805799
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