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 8:31:58 AM (PDT) on Monday, July 17, 2023.
The magnitude 0.5 event occurred 7 km (4 miles) NNE (24 degrees) of Lake Henshaw, CA.
The hypocentral depth is 12 km ( 8 miles).


Magnitude 0.5 - local magnitude (Ml)
Time Monday, July 17, 2023 at 8:31:58 AM (PDT)
Monday, July 17, 2023 at 15:31:58 (UTC)
Distance from Lake Henshaw, CA - 7 km (4 miles) NNE (24 degrees)
Warner Springs, CA - 9 km (6 miles) W (280 degrees)
Palomar Observatory, CA - 14 km (9 miles) ESE (118 degrees)
Aguanga, CA - 20 km (13 miles) SE (143 degrees)
Julian, CA - 27 km (17 miles) NNW (333 degrees)
Coordinates 33 deg. 17.8 min. N (33.297N), 116 deg. 44.1 min. W (116.734W)
Depth 12.16 km (7.6 miles)
Quality Good
Location Quality Parameters Nst=23, Nph=34, Dmin=7.1 km, Rmss=0.16 sec, Erho=0.31 km, Erzz=0.67 km, Gp=56 degrees
Event ID# ci39614794
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