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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 5:19:35 PM (PST) on Monday, December 3, 2018.
The magnitude 0.4 event occurred 10 km (6 miles) NE (41 degrees) of Aguanga, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 0.4 - local magnitude (Ml)
Time Monday, December 3, 2018 at 5:19:35 PM (PST)
Tuesday, December 4, 2018 at 1:19:35 (UTC)
Distance from Aguanga, CA - 10 km (6 miles) NE (41 degrees)
Anza, CA - 12 km (7 miles) WSW (246 degrees)
Palomar Observatory, CA - 19 km (12 miles) NNE (21 degrees)
Idyllwild, CA - 26 km (16 miles) SSW (195 degrees)
Valle Vista, CA - 28 km (17 miles) SSE (160 degrees)
Coordinates 33 deg. 30.7 min. N (33.511N), 116 deg. 47.6 min. W (116.793W)
Depth 2.78 km (1.7 miles)
Quality Excellent
Location Quality Parameters Nst=24, Nph=40, Dmin=0.7 km, Rmss=0.14 sec, Erho=0.2 km, Erzz=0.34 km, Gp=72 degrees
Event ID# ci38152279
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