2011-02-12 17:57:56 (Mw 6.1) TONGA -20.8 -175.6 (442af)

6.1 Mw - TONGA

Preliminary Earthquake Report

Magnitude	6.1 Mw
Date-Time	12 Feb 2011 17:57:56 UTC 13 Feb 2011 06:57:56 near epicenter 12 Feb 2011 07:57:56 standard time in your timezone
Location	20.785S 175.589W
Depth	81 km
Distances	55 km (34 miles) NW (318 degrees) of NUKU'ALOFA, Tonga 291 km (181 miles) SW (215 degrees) of Neiafu, Tonga 2754 km (1711 miles) WSW (258 degrees) of PAPEETE, Tahiti, French Polynesia
Location Uncertainty	Horizontal: 15.7 km; Vertical 1.1 km
Parameters	Nph = 476; Dmin = 862.7 km; Rmss = 0.93 seconds; Gp = 32° M-type = Mw; Version = 8
Event ID	US b0001d15

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U.S. Geological Survey
http://neic.usgs.gov/

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