A 7.8-magnitude earthquake has struck the Alaskan peninsula, reports the US Geological Survey (USGS).
The quake occurred at a depth of 10 km (6 miles), some 75 miles south of the city of Chignik on Wednesday morning.
The US National Tsunami Warning Center has since issued tsunami warnings for southern and coastal Alaska, and the Aleutian Islands.
Evacuations are thought to be underway in some areas, with people seeking safety on higher ground.
The US National Weather service has said there is no tsunami threat to the West coast and Canada.
“A destructive Pacific-wide tsunami is not expected and and there is no tsunami threat to Hawaii,” added the Pacific Tsunami Warning Center on Wednesday.
Aftershock tremors between 3.9 and 5.7-magnitude have now been recorded in the area, reports the USGS.
An earlier alert from the GFZ German Research Centre reported a 7.4-magnitude tremor, which was then revised-up.
