== PRELIMINARY EVENT 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.

An event occurred at 12:00:13 PM (PDT) on Thursday, May 2, 2013.
The magnitude 1.4 event (a probable quarry explosion) occurred 5 km (3 miles) E (82 degrees) of Quarry at SYS-CPE .
The hypocentral depth is 0 km (0.0 miles).

Magnitude		1.4 - local magnitude (Ml)
Time		Thursday, May 2, 2013 at 12:00:13 PM (PDT) Thursday, May 2, 2013 at 19:00:13 (UTC)
Distance from		Quarry at SYS-CPE (a probable quarry explosion) - 5 km (3 miles) E (82 degrees) El Cajon, CA - 8 km (5 miles) ESE (113 degrees) La Mesa, CA - 16 km (10 miles) E (91 degrees) Chula Vista, CA - 20 km (13 miles) NE (36 degrees)
Coordinates		32 deg. 45.9 min. N (32.766N), 116 deg. 52.8 min. W (116.880W)
Depth		0 km (0.0 miles)
Quality		Fair
Location Quality Parameters		Nst= 16, Nph= 16, Dmin=7 km, Rmss=0.18 sec, Erho=0.5 km, Erzz=31.6 km, Gp=82.8 degrees
Event ID#		ci15336537
Additional Information		map ||
		Waveforms

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