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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 3:05:50 AM (PST) on Wednesday, December 5, 2018.
The magnitude 1.3 event occurred 11 km (7 miles) W of Progreso, B.C., MX.
The hypocentral depth is 1 km ( 1 mile).



Magnitude 1.3 - local magnitude (Ml)
Time Wednesday, December 5, 2018 at 3:05:50 AM (PST)
Wednesday, December 5, 2018 at 11:05:50 (UTC)
Distance from Progreso, B.C., MX - 11 km (7 miles) W (261 degrees)
Calexico, CA - 23 km (14 miles) SW (236 degrees)
Heber, CA - 24 km (15 miles) SW (221 degrees)
Mexicali, B.C., MX - 24 km (15 miles) WSW (246 degrees)
El Centro, CA - 28 km (18 miles) SSW (209 degrees)
Coordinates 32 deg. 33.9 min. N (32.565N), 115 deg. 42.1 min. W (115.702W)
Depth 1.37 km (0.9 miles)
Quality Fair
Location Quality Parameters Nst=20, Nph=34, Dmin=21.7 km, Rmss=0.17 sec, Erho=0.28 km, Erzz=0.43 km, Gp=129 degrees
Event ID# ci38386296
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