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== 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 6:11:44 PM (PDT) on Tuesday, July 28, 2020.
The magnitude 1.0 event occurred 3 km (2 miles) SE of Lake Henshaw, CA.
The hypocentral depth is 12 km ( 7 miles).



Magnitude 1.0 - local magnitude (Ml)
Time Tuesday, July 28, 2020 at 6:11:44 PM (PDT)
Wednesday, July 29, 2020 at 1:11:44 (UTC)
Distance from Lake Henshaw, CA - 3 km (2 miles) SE (124 degrees)
Warner Springs, CA - 11 km (7 miles) WSW (237 degrees)
Palomar Observatory, CA - 19 km (12 miles) SE (140 degrees)
Julian, CA - 21 km (13 miles) NW (323 degrees)
Ramona, CA - 24 km (15 miles) NNE (31 degrees)
Coordinates 33 deg. 13.6 min. N (33.227N), 116 deg. 44.2 min. W (116.737W)
Depth 11.68 km (7.3 miles)
Quality Good
Location Quality Parameters Nst=51, Nph=99, Dmin=2.3 km, Rmss=0.16 sec, Erho=0.15 km, Erzz=0.38 km, Gp=40 degrees
Event ID# ci38613914
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