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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 2:30:03 AM (PST) on Tuesday, December 4, 2018.
The magnitude 1.1 event occurred 9 km (6 miles) NE (43 degrees) of Aguanga, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 1.1 - local magnitude (Ml)
Time Tuesday, December 4, 2018 at 2:30:03 AM (PST)
Tuesday, December 4, 2018 at 10:30:03 (UTC)
Distance from Aguanga, CA - 9 km (6 miles) NE (43 degrees)
Anza, CA - 13 km (8 miles) WSW (244 degrees)
Palomar Observatory, CA - 18 km (11 miles) NNE (21 degrees)
Idyllwild, CA - 27 km (17 miles) SSW (195 degrees)
Lake Henshaw, CA - 29 km (18 miles) N (354 degrees)
Coordinates 33 deg. 30.2 min. N (33.504N), 116 deg. 47.8 min. W (116.797W)
Depth 2.94 km (1.8 miles)
Quality Good
Location Quality Parameters Nst=48, Nph=67, Dmin=1.0 km, Rmss=0.18 sec, Erho=0.19 km, Erzz=0.51 km, Gp=31 degrees
Event ID# ci38152703
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