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

A micro earthquake occurred at 4:24:10 PM (PDT) on Friday, September 10, 2021.
The magnitude 0.7 event occurred 3 km (2 miles) ESE of Lake Henshaw, CA.
The hypocentral depth is 12 km ( 7 miles).


Magnitude 0.7 - local magnitude (Ml)
Time Friday, September 10, 2021 at 4:24:10 PM (PDT)
Friday, September 10, 2021 at 23:24:10 (UTC)
Distance from Lake Henshaw, CA - 3 km (2 miles) ESE (116 degrees)
Warner Springs, CA - 11 km (7 miles) WSW (238 degrees)
Palomar Observatory, CA - 18 km (11 miles) SE (139 degrees)
Julian, CA - 21 km (13 miles) NW (324 degrees)
Ramona, CA - 24 km (15 miles) NNE (31 degrees)
Coordinates 33 deg. 13.8 min. N (33.230N), 116 deg. 44.1 min. W (116.735W)
Depth 11.68 km (7.3 miles)
Quality Excellent
Location Quality Parameters Nst=35, Nph=52, Dmin=2.3 km, Rmss=0.14 sec, Erho=0.19 km, Erzz=0.46 km, Gp=33 degrees
Event ID# ci39804951
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