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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 2:25:50 AM (PST) on Thursday, December 6, 2018.
The magnitude 0.4 event occurred 9 km (5 miles) NE (53 degrees) of Aguanga, CA.
The hypocentral depth is 5 km ( 3 miles).



Magnitude 0.4 - local magnitude (Ml)
Time Thursday, December 6, 2018 at 2:25:50 AM (PST)
Thursday, December 6, 2018 at 10:25:50 (UTC)
Distance from Aguanga, CA - 9 km (5 miles) NE (53 degrees)
Anza, CA - 13 km (8 miles) SW (236 degrees)
Palomar Observatory, CA - 16 km (10 miles) NNE (25 degrees)
Warner Springs, CA - 27 km (17 miles) NNW (328 degrees)
Lake Henshaw, CA - 28 km (17 miles) N (355 degrees)
Coordinates 33 deg. 29.4 min. N (33.490N), 116 deg. 47.4 min. W (116.790W)
Depth 4.76 km (3.0 miles)
Quality Good
Location Quality Parameters Nst=14, Nph=17, Dmin=2.6 km, Rmss=0.1 sec, Erho=0.23 km, Erzz=0.69 km, Gp=97 degrees
Event ID# ci38387464
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