== PRELIMINARY EVENT REPORT ==

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

Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

An event occurred at 1:34:21 PM (PDT) on Thursday, October 3, 2013.
The magnitude 1.4 event (a probable quarry explosion) occurred 2 km (1 miles) N of Quarry at CORONA .
The hypocentral depth is 0 km (0.0 miles).

Magnitude		1.4 - local magnitude (Ml)
Time		Thursday, October 3, 2013 at 1:34:21 PM (PDT) Thursday, October 3, 2013 at 20:34:21 (UTC)
Distance from		Quarry at CORONA (a probable quarry explosion) - 2 km (1 miles) N (353 degrees) Corona, CA - 6 km (4 miles) ESE (102 degrees) Riverside, CA - 14 km (9 miles) SW (225 degrees) Riverside, CA - 18 km (11 miles) SW (221 degrees)
Coordinates		33 deg. 51.9 min. N (33.864N), 117 deg. 30.1 min. W (117.502W)
Depth		0 km (0.0 miles)
Quality		Fair
Location Quality Parameters		Nst= 16, Nph= 16, Dmin=13 km, Rmss=0.2 sec, Erho=0.7 km, Erzz=31.6 km, Gp=111.6 degrees
Event ID#		ci11372762
Additional Information		map ||
		Waveforms

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