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== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, 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 12:47:59 PM (PDT) on Wednesday, May 16, 2018.
The magnitude 1.7 event occurred 21 km (13 miles) SSE of Ridgemark, CA.
The hypocentral depth is 5 km ( 3 miles).



Magnitude 1.7 - duration magnitude (Md)
Time Wednesday, May 16, 2018 at 12:47:59 PM (PDT)
Wednesday, May 16, 2018 at 19:47:59 (UTC)
Distance from Ridgemark, CA - 21 km (13 miles) SSE (154 degrees)
Gonzales, CA - 22 km (14 miles) NE (46 degrees)
Chualar, CA - 24 km (15 miles) ENE (69 degrees)
Soledad, CA - 25 km (16 miles) NNE (12 degrees)
Hollister, CA - 25 km (16 miles) SSE (152 degrees)
Coordinates 36 deg. 38.8 min. N (36.646N), 121 deg. 15.9 min. W (121.266W)
Depth 4.93 km (3.1 miles)
Quality Good
Location Quality Parameters Nst=31, Nph=35, Dmin=5.9 km, Rmss=0.08 sec, Erho=0.26 km, Erzz=0.68 km, Gp=106 degrees
Event ID# nc73016845
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