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

A micro earthquake occurred at 2:34:32 PM (PST) on Tuesday, December 4, 2018.
The magnitude 0.4 event occurred 9 km (5 miles) NE (47 degrees) of Aguanga, CA.
The hypocentral depth is 4 km ( 2 miles).



Magnitude 0.4 - local magnitude (Ml)
Time Tuesday, December 4, 2018 at 2:34:32 PM (PST)
Tuesday, December 4, 2018 at 22:34:32 (UTC)
Distance from Aguanga, CA - 9 km (5 miles) NE (47 degrees)
Anza, CA - 13 km (8 miles) WSW (240 degrees)
Palomar Observatory, CA - 17 km (10 miles) NNE (22 degrees)
Idyllwild, CA - 28 km (17 miles) SSW (195 degrees)
Lake Henshaw, CA - 28 km (18 miles) N (354 degrees)
Coordinates 33 deg. 29.8 min. N (33.496N), 116 deg. 47.8 min. W (116.796W)
Depth 3.89 km (2.4 miles)
Quality Fair
Location Quality Parameters Nst=17, Nph=25, Dmin=9.4 km, Rmss=0.11 sec, Erho=0.42 km, Erzz=0.55 km, Gp=208 degrees
Event ID# ci38385680
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