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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 2:16:39 AM (PST) on Thursday, December 6, 2018.
The magnitude 0.4 event occurred 10 km (6 miles) NE (39 degrees) of Aguanga, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 0.4 - local magnitude (Ml)
Time Thursday, December 6, 2018 at 2:16:39 AM (PST)
Thursday, December 6, 2018 at 10:16:39 (UTC)
Distance from Aguanga, CA - 10 km (6 miles) NE (39 degrees)
Anza, CA - 12 km (8 miles) WSW (248 degrees)
Palomar Observatory, CA - 19 km (12 miles) NNE (20 degrees)
Idyllwild, CA - 26 km (16 miles) SSW (196 degrees)
Valle Vista, CA - 28 km (17 miles) SSE (161 degrees)
Coordinates 33 deg. 30.8 min. N (33.514N), 116 deg. 47.8 min. W (116.796W)
Depth 2.7 km (1.7 miles)
Quality Excellent
Location Quality Parameters Nst=16, Nph=20, Dmin=0.4 km, Rmss=0.11 sec, Erho=0.23 km, Erzz=0.26 km, Gp=80 degrees
Event ID# ci38387456
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