== 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 3:50:28 AM (PDT) on Thursday, May 2, 2013.
The magnitude 0.5 event occurred 6 km (4 miles) WSW of Obsidian Butte, CA.
The hypocentral depth is 0.3 km (0.2 miles).

Magnitude		0.5 - (unknown type)
Time		Thursday, May 2, 2013 at 3:50:28 AM (PDT) Thursday, May 2, 2013 at 10:50:28 (UTC)
Distance from		Obsidian Butte, CA - 6 km (4 miles) WSW (249 degrees) Westmorland, CA - 14 km (9 miles) NNW (331 degrees) Calipatria, CA - 17 km (11 miles) W (279 degrees) El Centro, CA - 42 km (26 miles) NNW (341 degrees)
Coordinates		33 deg. 9.0 min. N (33.151N), 115 deg. 41.7 min. W (115.696W)
Depth		0.3 km (0.2 miles)
Quality		Poor
Location Quality Parameters		Nst= 9, Nph= 17, Dmin=6 km, Rmss=0.19 sec, Erho=0.9 km, Erzz=31.6 km, Gp=306 degrees
Event ID#		ci15336377
Additional Information		map ||
		Waveforms

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

[ Index map || big earthquake list || all earthquake list || glossary of terms || top page ]
[ Did you feel it? || Shake Map North || Relative2Me ]
[ Data Sources || Contacts ]