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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 9:17:52 AM (PST) on Monday, December 3, 2018.
The magnitude 0.9 event occurred 25 km (15 miles) SSW of Ocotillo Wells, CA.
The hypocentral depth is 12 km ( 7 miles).



Magnitude 0.9 - local magnitude (Ml)
Time Monday, December 3, 2018 at 9:17:52 AM (PST)
Monday, December 3, 2018 at 17:17:52 (UTC)
Distance from Ocotillo Wells, CA - 25 km (15 miles) SSW (198 degrees)
Ocotillo, CA - 30 km (19 miles) NW (317 degrees)
Pine Valley, CA - 32 km (20 miles) ENE (67 degrees)
Borrego Springs, CA - 39 km (24 miles) SSE (157 degrees)
Julian, CA - 40 km (25 miles) ESE (114 degrees)
Coordinates 32 deg. 56.0 min. N (32.933N), 116 deg. 12.9 min. W (116.215W)
Depth 11.78 km (7.3 miles)
Quality Good
Location Quality Parameters Nst=14, Nph=18, Dmin=19.1 km, Rmss=0.17 sec, Erho=0.35 km, Erzz=1.31 km, Gp=128 degrees
Event ID# ci38151399
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