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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 2:39:16 AM (PDT) on Thursday, July 12, 2018.
The magnitude 0.6 event occurred 9 km (5 miles) ESE of East Foothills, CA.
The hypocentral depth is 6 km ( 4 miles).



Magnitude 0.6 - duration magnitude (Md)
Time Thursday, July 12, 2018 at 2:39:16 AM (PDT)
Thursday, July 12, 2018 at 9:39:16 (UTC)
Distance from East Foothills, CA - 9 km (5 miles) ESE (103 degrees)
Alum Rock, CA - 9 km (6 miles) E (91 degrees)
Seven Trees, CA - 13 km (8 miles) NE (50 degrees)
San Jose, CA - 15 km (10 miles) E (80 degrees)
Buena Vista, CA - 18 km (11 miles) ENE (74 degrees)
Coordinates 37 deg. 21.9 min. N (37.364N), 121 deg. 43.4 min. W (121.723W)
Depth 6.23 km (3.9 miles)
Quality Good
Location Quality Parameters Nst=9, Nph=10, Dmin=4.2 km, Rmss=0.02 sec, Erho=0.5 km, Erzz=0.77 km, Gp=125 degrees
Event ID# nc73043711
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