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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 4:05:59 PM (PST) on Monday, December 3, 2018.
The magnitude 2.6 event occurred 13 km (8 miles) E (90 degrees) of Fremont, CA.
The hypocentral depth is 4 km ( 2 miles).



Magnitude 2.6 - duration magnitude (Md)
Time Monday, December 3, 2018 at 4:05:59 PM (PST)
Tuesday, December 4, 2018 at 0:05:59 (UTC)
Distance from Fremont, CA - 13 km (8 miles) E (90 degrees)
Milpitas, CA - 14 km (9 miles) NNE (25 degrees)
Pleasanton, CA - 14 km (9 miles) SSE (166 degrees)
Livermore, CA - 17 km (10 miles) SSW (202 degrees)
Union City, CA - 17 km (11 miles) ESE (110 degrees)
Coordinates 37 deg. 32.5 min. N (37.542N), 121 deg. 50.3 min. W (121.838W)
Depth 3.88 km (2.4 miles)
Quality Excellent
Location Quality Parameters Nst=73, Nph=74, Dmin=4.4 km, Rmss=0.07 sec, Erho=0.1 km, Erzz=0.3 km, Gp=31 degrees
Event ID# nc73118896
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