5.3 Mb - TONGA

Preliminary Earthquake Report
Magnitude 5.3 Mb
Date-Time
20 Mar 2011 11:47:43 UTC
21 Mar 2011 00:47:43 near epicenter
20 Mar 2011 21:47:43 standard time in your timezone
Location 18.800S 174.926W
Depth 138 km
Distances
101 km (63 miles) W (260 degrees) of Neiafu, Tonga
263 km (164 miles) N (7 degrees) of NUKU'ALOFA, Tonga
2681 km (1666 miles) W (263 degrees) of PAPEETE, Tahiti, French Polynesia
Location Uncertainty Horizontal: 18.1 km; Vertical 1.9 km
Parameters Nph = 352; Dmin = 751.4 km; Rmss = 0.68 seconds; Gp = 43�
M-type = Mb; Version = 8
Event ID US c00027g9


David Cottle

UBB Owner & Administrator