Magnitude 5.1 - TONGA

• This event has been reviewed by a seismologist.

Magnitude	5.1
Date-Time	Wednesday, December 28, 2011 at 21:55:43 UTC Thursday, December 29, 2011 at 11:55:43 AM at epicenter Time of Earthquake in other Time Zones
Location	17.709°S, 174.739°W
Depth	238.9 km (148.5 miles)
Region	TONGA
Distances	131 km (81 miles) NW of Neiafu, Tonga 221 km (137 miles) SSW of Hihifo, Tonga 381 km (236 miles) N of NUKU`ALOFA, Tonga 2359 km (1465 miles) NNE of Auckland, New Zealand
Location Uncertainty	horizontal +/- 32.8 km (20.4 miles); depth +/- 20.5 km (12.7 miles)
Parameters	NST= 34, Nph= 34, Dmin=526.5 km, Rmss=0.81 sec, Gp=148°, M-type=body wave magnitude (Mb), Version=4
Source	Magnitude: USGS NEIC (WDCS-D) Location: USGS NEIC (WDCS-D)
Event ID	usc0007e09