Earthquake Magnitude 7.6 - KERMADEC ISLANDS REGION

Magnitude 7.6 - KERMADEC ISLANDS REGION

2011 October 21 17:57:17 UTC

Earthquake Details

• This event has been reviewed by a seismologist.

Magnitude	7.6
Date-Time	Friday, October 21, 2011 at 17:57:17 UTC Saturday, October 22, 2011 at 05:57:17 AM at epicenter
Location	28.941°S, 176.046°W
Depth	39.8 km (24.7 miles)
Region	KERMADEC ISLANDS REGION
Distances	180 km (112 miles) E (79°) from Raoul Island, Kermadec Islands 870 km (541 miles) S (185°) from NUKU'ALOFA, Tonga 2978 km (1851 miles) WSW (240°) from PAPEETE, Tahiti, French Polynesia
Location Uncertainty	horizontal +/- 15.7 km (9.8 miles); depth +/- 10.8 km (6.7 miles)
Parameters	NST= 94, Nph= 94, Dmin=187 km, Rmss=2.44 sec, Gp= 50°, M-type=regional moment magnitude (Mw), Version=5
Source	Magnitude: USGS NEIC (WDCS-D) Location: USGS NEIC (WDCS-D)
Event ID	usb0006b6p