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== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California



Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 6:59:13 AM (PST) on Wednesday, December 5, 2018.
The magnitude 1.6 event occurred 6 km (4 miles) E (81 degrees) of San Luis Obispo, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 1.6 - duration magnitude (Md)
Time Wednesday, December 5, 2018 at 6:59:13 AM (PST)
Wednesday, December 5, 2018 at 14:59:13 (UTC)
Distance from San Luis Obispo, CA - 6 km (4 miles) E (81 degrees)
Santa Margarita, CA - 11 km (7 miles) S (174 degrees)
Avila Beach, CA - 17 km (11 miles) NE (45 degrees)
Pismo Beach, CA - 17 km (11 miles) NNE (14 degrees)
Arroyo Grande, CA - 19 km (12 miles) N (358 degrees)
Coordinates 35 deg. 17.5 min. N (35.291N), 120 deg. 35.8 min. W (120.597W)
Depth 2.95 km (1.8 miles)
Quality Good
Location Quality Parameters Nst=33, Nph=35, Dmin=3.5 km, Rmss=0.07 sec, Erho=0.19 km, Erzz=0.28 km, Gp=96 degrees
Event ID# nc73119361
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