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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 5:44:13 AM (PDT) on Thursday, May 17, 2018.
The magnitude 0.4 event occurred 9 km (5 miles) NE (53 degrees) of Aguanga, CA.
The hypocentral depth is 4 km ( 2 miles).



Magnitude 0.4 - local magnitude (Ml)
Time Thursday, May 17, 2018 at 5:44:13 AM (PDT)
Thursday, May 17, 2018 at 12:44:13 (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 (24 degrees)
Warner Springs, CA - 27 km (17 miles) NNW (328 degrees)
Lake Henshaw, CA - 28 km (17 miles) N (354 degrees)
Coordinates 33 deg. 29.4 min. N (33.489N), 116 deg. 47.5 min. W (116.792W)
Depth 4.07 km (2.5 miles)
Quality Good
Location Quality Parameters Nst=23, Nph=29, Dmin=9.8 km, Rmss=0.18 sec, Erho=0.28 km, Erzz=0.75 km, Gp=48 degrees
Event ID# ci38174864
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