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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 7:00:21 AM (PDT) on Wednesday, October 10, 2018.
The magnitude 1.2 event occurred 20 km (12 miles) NE (38 degrees) of East Foothills, CA.
The hypocentral depth is 7 km ( 4 miles).



Magnitude 1.2 - duration magnitude (Md)
Time Wednesday, October 10, 2018 at 7:00:21 AM (PDT)
Wednesday, October 10, 2018 at 14:00:21 (UTC)
Distance from East Foothills, CA - 20 km (12 miles) NE (38 degrees)
Livermore, CA - 20 km (12 miles) SSE (157 degrees)
Alum Rock, CA - 22 km (13 miles) NE (37 degrees)
Milpitas, CA - 22 km (14 miles) ENE (63 degrees)
Pleasanton, CA - 23 km (15 miles) SE (133 degrees)
Coordinates 37 deg. 31.2 min. N (37.520N), 121 deg. 40.8 min. W (121.679W)
Depth 7.07 km (4.4 miles)
Quality Excellent
Location Quality Parameters Nst=19, Nph=20, Dmin=5.2 km, Rmss=0.07 sec, Erho=0.25 km, Erzz=0.6 km, Gp=45 degrees
Event ID# nc73095826
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