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== PRELIMINARY EARTHQUAKE REPORT ==

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



Version #0: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 2:01:14 PM (PDT) on Sunday, May 5, 2013.
The magnitude 1.4 event occurred 3 km (2 miles) N (2 degrees) of Alamo, CA.
The hypocentral depth is 11 km ( 7 miles).



Magnitude 1.4 - duration magnitude (Md)
Time Sunday, May 5, 2013 at 2:01:14 PM (PDT)
Sunday, May 5, 2013 at 21:01:14 (UTC)
Distance from Alamo, CA - 3 km (2 miles) N (2 degrees)
Walnut Creek, CA - 4 km (3 miles) SE (139 degrees)
Danville, CA - 7 km (4 miles) NNW (335 degrees)
San Francisco City Hall, CA - 36 km (22 miles) ENE (71 degrees)
Coordinates 37 deg. 52.6 min. N (37.877N), 122 deg. 1.8 min. W (122.030W)
Depth 10.9 km (6.8 miles)
Quality Good
Location Quality Parameters Nst= 16, Nph= 16, Dmin=4 km, Rmss=0.04 sec, Erho=0.4 km, Erzz=0.6 km, Gp=122.4 degrees
Event ID# nc71986091
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