5.8
Date-Time
Monday, January 31, 2011 at 06:03:23 UTC
Monday, January 31, 2011 at 07:03:23 PM at epicenter
Location
21.831°S, 175.554°W
Depth
35 km (21.7 miles)
Region
TONGA
Distances
83 km (51 miles) SSW (204°) from NUKU'ALOFA, Tonga
390 km (242 miles) SSW (205°) from Neiafu, Tonga
2759 km (1714 miles) WSW (256°) from PAPEETE, Tahiti, French Polynesia
Location Uncertainty
horizontal +/- 18.3 km (11.4 miles); depth +/- 0.3 km (0.2 miles)
Parameters
NST=180, Nph=184, Dmin=856 km, Rmss=0.92 sec, Gp= 94°,
M-type="moment" magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=8
Source
U.S. Geological Survey, National Earthquake Information Center:
World Data Center for Seismology, Denver
Event ID
usb00016zk