Version #M: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.
A microearthquake occurred at 12:57:38 AM (PDT) on Thursday, May 7, 2009.
The magnitude 1.3 event occurred 2 km (2 miles) NNE of Colton, CA.
The hypocentral depth is 18 km (11 miles).
Magnitude | 1.3 - local magnitude (ML) |
---|---|
Time | Thursday, May 7, 2009 at 12:57:38 AM (PDT) Thursday, May 7, 2009 at 7:57:38 (UTC) |
Distance from | Colton, CA - 2 km (2 miles) NNE (20 degrees) San Bernardino, CA - 5 km (3 miles) SSW (200 degrees) Rialto, CA - 7 km (4 miles) ESE (114 degrees) Loma Linda, CA - 7 km (4 miles) NW (306 degrees) Los Angeles Civic Center, CA - 86 km (54 miles) E (87 degrees) |
Coordinates | 34 deg. 5.1 min. N (34.086N), 117 deg. 18.8 min. W (117.313W) |
Depth | 17.5 km (10.9 miles) |
Location Quality | Good |
Location Quality Parameters | Nst=048, Nph=048, Dmin=4 km, Rmss=0.16 sec, Erho=0.3 km, Erzz=0.6 km, Gp=57.6 degrees |
Event ID# | ci10405969 |
Additional Information | 2-degree map Google Earth KML (Requires Google Earth.) Waveforms |
For more information, see http://earthquake.usgs.gov/regional/sca/