The earthquake had a depth of 118 kilometres or about 73 miles, and the nearest populated area to the epicenter is 15 miles away, an island called Little Sitkin Island, according to Rafael Abreu, a geophysicist with the USGS.
The earthquake recorded at 12:53 p.m. local time was initially reported with a magnitude of 7.1, but was later upgraded to 8.0.
Residents were warned to move inland to higher ground.
Original story: http://www.nbcnews.com/news/us-news/tsunami-warning-issued-coastal-alaska-after-8-0-earthquake-n138831
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