== 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 9:46:38 PM (PDT) on Tuesday, October 1, 2013.
The magnitude 1.3 event occurred 9 km (6 miles) ESE of Ontario, CA.
The hypocentral depth is 13 km ( 8 miles).

Magnitude		1.3 - local magnitude (Ml)
Time		Tuesday, October 1, 2013 at 9:46:38 PM (PDT) Wednesday, October 2, 2013 at 4:46:38 (UTC)
Distance from		Ontario, CA - 9 km (6 miles) ESE (113 degrees) Rancho Cucamonga, CA - 9 km (6 miles) SSE (158 degrees) Upland, CA - 12 km (7 miles) SE (133 degrees) Riverside, CA - 17 km (11 miles) WNW (301 degrees)
Coordinates		34 deg. 2.0 min. N (34.033N), 117 deg. 33.5 min. W (117.558W)
Depth		13.2 km (8.2 miles)
Quality		Excellent
Location Quality Parameters		Nst= 42, Nph= 57, Dmin=3 km, Rmss=0.14 sec, Erho=0.3 km, Erzz=0.3 km, Gp=61.2 degrees
Event ID#		ci11372178
Additional Information		map ||
		Waveforms

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

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