Magnitude 7.1 Earthquake Strikes Alaska

Magnitude 7.1 Earthquake Strikes Alaska, Sparking Tsunami Warning for Aleutian Islands


Earthquake Details

• This event has been reviewed by a seismologist.

Magnitude	7.1
Date-Time	Friday, September 02, 2011 at 10:55:54 UTC Friday, September 02, 2011 at 01:55:54 AM at epicenter
Location	52.184°N, 171.684°W
Depth	35.5 km (22.1 miles)
Region	FOX ISLANDS, ALEUTIAN ISLANDS, ALASKA
Distances	45 km (27 miles) SW of Amukta Island, Alaska 85 km (52 miles) SW of Yunaska Island, Alaska 1658 km (1030 miles) WSW of Anchorage, Alaska 2410 km (1497 miles) W of WHITEHORSE, Yukon Territory, Canada
Location Uncertainty	horizontal +/- 14 km (8.7 miles); depth +/- 4.4 km (2.7 miles)
Parameters	NST=824, Nph=825, Dmin=172.5 km, Rmss=0.81 sec, Gp= 54°, M-type=regional moment magnitude (Mw), Version=9
Source	Magnitude: USGS NEIC (WDCS-D) Location: USGS NEIC (WDCS-D)
Event ID	usc0005n83