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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 8:03:29 AM (PST) on Tuesday, December 4, 2018.
The magnitude 1.7 event occurred 17 km (11 miles) ESE of Julian, CA.
The hypocentral depth is 8 km ( 5 miles).



Magnitude 1.7 - local magnitude (Ml)
Time Tuesday, December 4, 2018 at 8:03:29 AM (PST)
Tuesday, December 4, 2018 at 16:03:29 (UTC)
Distance from Julian, CA - 17 km (11 miles) ESE (107 degrees)
Borrego Springs, CA - 25 km (16 miles) S (191 degrees)
Pine Valley, CA - 26 km (16 miles) NNE (22 degrees)
Ocotillo Wells, CA - 30 km (19 miles) WSW (246 degrees)
San Diego Country Estates, CA - 33 km (21 miles) E (85 degrees)
Coordinates 33 deg. 2.1 min. N (33.035N), 116 deg. 25.6 min. W (116.427W)
Depth 8.24 km (5.1 miles)
Quality Good
Location Quality Parameters Nst=51, Nph=64, Dmin=15.8 km, Rmss=0.18 sec, Erho=0.23 km, Erzz=0.89 km, Gp=34 degrees
Event ID# ci38152999
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