Alaska is bracing itself for a small tsunami after a huge 7.9-magnitude earthquake struck at a shallow depth some 160 miles off the state's coast.
While alerts were originally issued across the entire west coast of America and Canada, they have since been withdrawn for all states except Alaska.
The US Geological Survey said the quake struck 256 km (157 miles) southeast of Chiniak, Alaska at a depth of 10 km at 0931 GMT on Tuesday morning.
The quake prompted a red tsunami warning for parts of Alaska and Canada and and a tsunami watch for the entire US west coast, the US Tsunami Warning System said.
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