== PRELIMINARY EARTHQUAKE REPORT ==

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

Version #1: 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 8:26:59 PM (PDT) on Monday, September 30, 2013.
The magnitude 2.3 event occurred 6 km (4 miles) W of Daly City, CA.
The hypocentral depth is 5 km ( 3 miles).

Magnitude		2.3 - duration magnitude (Md)
Time		Monday, September 30, 2013 at 8:26:59 PM (PDT) Tuesday, October 1, 2013 at 3:26:59 (UTC)
Distance from		Daly City, CA - 6 km (4 miles) W (277 degrees) Pacifica, CA - 12 km (7 miles) NNW (341 degrees) San Francisco City Hall, CA - 12 km (7 miles) SW (234 degrees) South San Francisco, CA - 12 km (8 miles) WNW (300 degrees)
Coordinates		37 deg. 42.7 min. N (37.711N), 122 deg. 31.7 min. W (122.529W)
Depth		5.4 km (3.4 miles)
Quality		Good
Location Quality Parameters		Nst= 40, Nph= 40, Dmin=10 km, Rmss=0.07 sec, Erho=0.3 km, Erzz=0.5 km, Gp=172.8 degrees
Event ID#		nc72075875
Additional Information		map || waveforms
		Waveforms NCSS First Motion Mechanism 1

For more information, see http://quake.wr.usgs.gov/

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