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

A micro earthquake occurred at 1:31:33 AM (PDT) on Monday, August 12, 2019.
The magnitude 1.0 event occurred 3 km (2 miles) SE of Lake Henshaw, CA.
The hypocentral depth is 12 km ( 8 miles).



Magnitude 1.0 - local magnitude (Ml)
Time Monday, August 12, 2019 at 1:31:33 AM (PDT)
Monday, August 12, 2019 at 8:31:33 (UTC)
Distance from Lake Henshaw, CA - 3 km (2 miles) SE (131 degrees)
Warner Springs, CA - 12 km (7 miles) WSW (237 degrees)
Palomar Observatory, CA - 19 km (12 miles) SE (142 degrees)
Julian, CA - 21 km (13 miles) NW (322 degrees)
Ramona, CA - 24 km (15 miles) NNE (30 degrees)
Coordinates 33 deg. 13.5 min. N (33.225N), 116 deg. 44.4 min. W (116.740W)
Depth 12.02 km (7.5 miles)
Quality Good
Location Quality Parameters Nst=46, Nph=68, Dmin=2.1 km, Rmss=0.17 sec, Erho=0.21 km, Erzz=0.57 km, Gp=45 degrees
Event ID# ci38958416
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