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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 #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 4:36:08 PM (PDT) on Tuesday, May 15, 2018.
The magnitude 1.6 event occurred 11 km (7 miles) S of Progreso, B.C., MX.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 1.6 - local magnitude (Ml)
Time Tuesday, May 15, 2018 at 4:36:08 PM (PDT)
Tuesday, May 15, 2018 at 23:36:08 (UTC)
Distance from Progreso, B.C., MX - 11 km (7 miles) S (191 degrees)
Mexicali, B.C., MX - 22 km (14 miles) SW (215 degrees)
Calexico, CA - 24 km (15 miles) SSW (205 degrees)
Puebla, B.C., MX - 25 km (16 miles) WSW (250 degrees)
Heber, CA - 28 km (17 miles) SSW (195 degrees)
Coordinates 32 deg. 29.2 min. N (32.486N), 115 deg. 36.3 min. W (115.606W)
Depth 2.79 km (1.7 miles)
Quality Fair
Location Quality Parameters Nst=14, Nph=24, Dmin=21.3 km, Rmss=0.19 sec, Erho=0.4 km, Erzz=1.46 km, Gp=108 degrees
Event ID# ci38173680
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