== PRELIMINARY EARTHQUAKE REPORT ==
California Integrated Seismic Net
USGS/ Caltech/ CGS/ UCB/ UCSD/ UNR

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

A microearthquake occurred at 11:18:33 AM (PDT) on Wednesday, September 10, 2008.
The magnitude 0.5 event occurred 6 km (4 miles) NNE of Obsidian Butte, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 0.5 - (unknown type)
Time Wednesday, September 10, 2008 at 11:18:33 AM (PDT)
Wednesday, September 10, 2008 at 18:18:33 (UTC)
Distance from Obsidian Butte, CA - 6 km (4 miles) NNE (18 degrees)
Niland, CA - 10 km (6 miles) WSW (258 degrees)
Calipatria, CA - 14 km (9 miles) NW (317 degrees)
El Centro, CA - 48 km (30 miles) N (353 degrees)
San Diego, CA - 151 km (94 miles) ENE (71 degrees)
Coordinates 33 deg. 13.2 min. N (33.220N), 115 deg. 37.0 min. W (115.617W)
Depth 6.1 km (3.8 miles)
Location Quality Fair
Location Quality Parameters Nst=009, Nph=009, Dmin=2 km, Rmss=0.21 sec, Erho=2.4 km, Erzz=2.7 km, Gp=295.2 degrees
Event ID# ci10348081
Additional Information map with fault names
Google Earth KML (Requires Google Earth.)
Waveforms

Did you feel it? || Shake Map South
For more information, see http://earthquake.usgs.gov/regional/sca/ || Contacts

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