7.9 Mw - SAMOA ISLANDS REGION

7.9 Mw - SAMOA ISLANDS REGION
Preliminary Earthquake Report
Magnitude
7.9 Mw
Date-Time
29 Sep 2009 17:48:19 UTC
29 Sep 2009 06:48:19 near epicenter
29 Sep 2009 11:48:19 standard time in your timezone
Location
15.556S 172.302W
Depth
85 km
Distances
204 km (127 miles) SSW (197 degrees) of APIA, Samoa
224 km (139 miles) SW (230 degrees) of PAGO PAGO, American Samoa
388 km (241 miles) NNE (28 degrees) of Neiafu, Tonga
2432 km (1511 miles) W (272 degrees) of PAPEETE, Tahiti, French Polynesia
Location Uncertainty
Horizontal: 12.7 km; Vertical 34.0 km
Parameters
Nph = 58; Dmin = 999.9 km; Rmss = 1.17 seconds; Gp = 54°M-type = Mw; Version = 6
Event ID
US 2009mdbi ***This event supersedes event AT00424649.
For updates, maps, and technical information, see:

Event Page or USGS Earthquake Hazards Program
National Earthquake Information CenterU.S. Geological Survey

http://neic.usgs.gov//