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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 11:09:57 PM (PST) on Tuesday, December 4, 2018.
The magnitude 0.9 event occurred 11 km (7 miles) S of Joshua Tree, CA.
The hypocentral depth is 9 km ( 6 miles).



Magnitude 0.9 - local magnitude (Ml)
Time Tuesday, December 4, 2018 at 11:09:57 PM (PST)
Wednesday, December 5, 2018 at 7:09:57 (UTC)
Distance from Joshua Tree, CA - 11 km (7 miles) S (182 degrees)
Yucca Valley, CA - 14 km (8 miles) SE (130 degrees)
Desert Hot Springs, CA - 19 km (12 miles) ENE (64 degrees)
Morongo Valley, CA - 24 km (15 miles) E (93 degrees)
Thousand Palms, CA - 25 km (15 miles) NNE (15 degrees)
Coordinates 34 deg. 2.2 min. N (34.036N), 116 deg. 19.1 min. W (116.318W)
Depth 9.41 km (5.8 miles)
Quality Excellent
Location Quality Parameters Nst=26, Nph=47, Dmin=7.6 km, Rmss=0.11 sec, Erho=0.16 km, Erzz=0.47 km, Gp=61 degrees
Event ID# ci38386184
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