== PRELIMINARY EARTHQUAKE REPORT ==

Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, California

Version #4: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 1:13:02 PM (PDT) on Tuesday, October 1, 2013.
The magnitude 0.5 event occurred 2 km (1 miles) SE of Obsidian Butte, CA.
The hypocentral depth is 9 km ( 6 miles).

Magnitude		0.5 - (unknown type)
Time		Tuesday, October 1, 2013 at 1:13:02 PM (PDT) Tuesday, October 1, 2013 at 20:13:02 (UTC)
Distance from		Obsidian Butte, CA - 2 km (1 miles) SE (139 degrees) Calipatria, CA - 10 km (6 miles) WNW (287 degrees) Westmorland, CA - 13 km (8 miles) N (1 degrees) El Centro, CA - 41 km (25 miles) N (351 degrees)
Coordinates		33 deg. 9.3 min. N (33.154N), 115 deg. 37.2 min. W (115.620W)
Depth		9.1 km (5.7 miles)
Quality		Poor
Location Quality Parameters		Nst= 7, Nph= 7, Dmin=3 km, Rmss=0.15 sec, Erho=5.1 km, Erzz=31.6 km, Gp=198 degrees
Event ID#		ci11371994
Additional Information		map ||
		Waveforms

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

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