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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 1:51:49 PM (PST) on Tuesday, December 4, 2018.
The magnitude 1.4 event occurred 9 km (6 miles) NE (45 degrees) of Aguanga, CA.
The hypocentral depth is 4 km ( 2 miles).



Magnitude 1.4 - local magnitude (Ml)
Time Tuesday, December 4, 2018 at 1:51:49 PM (PST)
Tuesday, December 4, 2018 at 21:51:49 (UTC)
Distance from Aguanga, CA - 9 km (6 miles) NE (45 degrees)
Anza, CA - 13 km (8 miles) WSW (242 degrees)
Palomar Observatory, CA - 17 km (11 miles) NNE (22 degrees)
Idyllwild, CA - 27 km (17 miles) SSW (195 degrees)
Lake Henshaw, CA - 29 km (18 miles) N (354 degrees)
Coordinates 33 deg. 30.1 min. N (33.501N), 116 deg. 47.6 min. W (116.794W)
Depth 3.96 km (2.5 miles)
Quality Good
Location Quality Parameters Nst=21, Nph=25, Dmin=1.4 km, Rmss=0.22 sec, Erho=0.4 km, Erzz=0.73 km, Gp=75 degrees
Event ID# ci38385464
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