A magnitude 8.2 earthquake off Alaska’s Kodiak Island has prompted a tsunami warning for a large part of coastal Alaska and Canada’s British Columbia while the remainder of the US West Coast was under a watch.

The strong earthquake was recorded about 175 miles south east of Kodiak Island early on Tuesday morning.

Warnings from the US National Weather Service sent to mobile phones in Alaska warned: “Emergency Alert. Tsunami danger on the coast. Go to high ground or move inland.”

Kodiak officials warned residents to evacuate if they lived in low-lying areas. People reported on social media that the quake was felt hundreds of miles away, in Anchorage.