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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 5:05:42 AM (PST) on Tuesday, December 4, 2018.
The magnitude 0.7 event occurred 8 km (5 miles) ENE (63 degrees) of Aguanga, CA.
The hypocentral depth is 5 km ( 3 miles).



Magnitude 0.7 - local magnitude (Ml)
Time Tuesday, December 4, 2018 at 5:05:42 AM (PST)
Tuesday, December 4, 2018 at 13:05:42 (UTC)
Distance from Aguanga, CA - 8 km (5 miles) ENE (63 degrees)
Anza, CA - 14 km (8 miles) SW (230 degrees)
Palomar Observatory, CA - 15 km (9 miles) NNE (28 degrees)
Lake Henshaw, CA - 26 km (16 miles) N (355 degrees)
Warner Springs, CA - 26 km (16 miles) NNW (327 degrees)
Coordinates 33 deg. 28.6 min. N (33.477N), 116 deg. 47.2 min. W (116.787W)
Depth 4.57 km (2.8 miles)
Quality Good
Location Quality Parameters Nst=38, Nph=65, Dmin=4.2 km, Rmss=0.16 sec, Erho=0.17 km, Erzz=0.34 km, Gp=36 degrees
Event ID# ci38152791
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