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

A micro earthquake occurred at 8:52:18 PM (PST) on Tuesday, December 4, 2018.
The magnitude 2.2 event occurred 7 km (5 miles) SW of Holtville, CA.
The hypocentral depth is 14 km ( 9 miles).



Magnitude 2.2 - local magnitude (Ml)
Time Tuesday, December 4, 2018 at 8:52:18 PM (PST)
Wednesday, December 5, 2018 at 4:52:18 (UTC)
Distance from Holtville, CA - 7 km (5 miles) SW (224 degrees)
Heber, CA - 10 km (6 miles) ENE (67 degrees)
Calexico, CA - 11 km (7 miles) NNE (32 degrees)
El Centro, CA - 12 km (7 miles) ESE (103 degrees)
Mexicali, B.C., MX - 13 km (8 miles) NNE (14 degrees)
Coordinates 32 deg. 45.9 min. N (32.764N), 115 deg. 26.1 min. W (115.434W)
Depth 14.14 km (8.8 miles)
Quality Good
Location Quality Parameters Nst=31, Nph=47, Dmin=4.7 km, Rmss=0.23 sec, Erho=0.28 km, Erzz=0.56 km, Gp=40 degrees
Event ID# ci38386144
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