Magnitude 7.9
Date-Time Tuesday, September 29, 2009 at 17:48:14 UTC
Tuesday, September 29, 2009 at 06:48:14 AM at epicenter
Location 15.554°S, 172.141°W
Depth: 35 km (21.7 miles) set by location program
Region: SAMOA ISLANDS REGION
Distances:
180 km (110 miles) ENE of Hihifo, Tonga
200 km (125 miles) SSW of APIA, Samoa
700 km (435 miles) NNE of NUKU'ALOFA, Tonga
2685 km (1670 miles) NNE of Auckland, New Zealand
Location Uncertainty: horizontal +/- 11.9 km (7.4 miles); depth fixed by location program
Parameters NST= 59, Nph= 59, Dmin=>999 km, Rmss=1.29 sec, Gp= 54°,
M-type=teleseismic moment magnitude (Mw), Version=7
Source USGS NEIC (WDCS-D)
Event ID us2009mdbi
USGS Earthquake Hazards Program.