The National Tsunami Warning Center cancelled the last remaining advisory late Monday afternoon. At one point, areas stretching from Attu to Unimak Pass were under a tsunami warning or advisory, but the largest reported wave was about 18 centimetres.
The advisory area included Unalaska, a community of about 4,000 people and home to Dutch Harbor, one of the nation's largest fishing ports.
Emergency Measures British Columbia said there is no threat to other U.S. or Canadian areas along the North American Pacific coast.
The quake struck Monday afternoon and was widely felt in sparsely populated villages in an area about 1,400 miles southwest of Anchorage.
The earthquake was initially measured at magnitude 8.0. But scientists have downgraded that now to 7.9 after having time to review the data.
— With files from The Canadian Press