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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 1:27:39 AM (PDT) on Thursday, May 17, 2018.
The magnitude 1.0 event occurred 10 km (6 miles) ESE of Big Bear City, CA.
The hypocentral depth is 2 km ( 2 miles).



Magnitude 1.0 - local magnitude (Ml)
Time Thursday, May 17, 2018 at 1:27:39 AM (PDT)
Thursday, May 17, 2018 at 8:27:39 (UTC)
Distance from Big Bear City, CA - 10 km (6 miles) ESE (113 degrees)
Big Bear Lake, CA - 16 km (10 miles) E (98 degrees)
Morongo Valley, CA - 25 km (15 miles) NW (323 degrees)
Yucca Valley, CA - 31 km (19 miles) WNW (293 degrees)
Lucerne Valley, CA - 32 km (20 miles) SE (140 degrees)
Coordinates 34 deg. 13.5 min. N (34.225N), 116 deg. 44.6 min. W (116.743W)
Depth 2.37 km (1.5 miles)
Quality Fair
Location Quality Parameters Nst=42, Nph=71, Dmin=16.9 km, Rmss=0.18 sec, Erho=0.22 km, Erzz=0.74 km, Gp=75 degrees
Event ID# ci38174776
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