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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 11:15:50 PM (PST) on Tuesday, December 4, 2018.
The magnitude 1.1 event occurred 20 km (12 miles) SE of Ocotillo Wells, CA.
The hypocentral depth is 9 km ( 6 miles).



Magnitude 1.1 - local magnitude (Ml)
Time Tuesday, December 4, 2018 at 11:15:50 PM (PST)
Wednesday, December 5, 2018 at 7:15:50 (UTC)
Distance from Ocotillo Wells, CA - 20 km (12 miles) SE (136 degrees)
Ocotillo, CA - 31 km (19 miles) N (2 degrees)
Salton City, CA - 32 km (20 miles) S (184 degrees)
Westmorland, CA - 34 km (21 miles) W (266 degrees)
Brawley, CA - 42 km (26 miles) W (276 degrees)
Coordinates 33 deg. 0.9 min. N (33.015N), 115 deg. 58.9 min. W (115.982W)
Depth 8.96 km (5.6 miles)
Quality Good
Location Quality Parameters Nst=35, Nph=59, Dmin=14.3 km, Rmss=0.2 sec, Erho=0.23 km, Erzz=1.04 km, Gp=46 degrees
Event ID# ci38386200
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