Powerful earthquake hits off Alaska coast, triggering tsunami warning

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The size of the quake was originally reported to have been a magnitude of 7.4, but has been revised to a 7.5, said Paul Caruso, a geophysicist with the US Geological Survey.

Public safety officials in King Cove sent out an alert urging residents in the coastal area to move inland to higher ground.

A major 7.4 magnitude earthquake was reported in Alaska today.
A major 7.4 magnitude earthquake was reported in Alaska today. (Supplied)
The tsunami warning was issued by the National Tsunami Warning Center, following an earthquake off Sand Point, Alaska.

The National Tsunami Warning Centre in Palmer, Alaska, said the tsunami warning was in effect for roughly 1529 kilometres, from 64 kilometres southeast of Homer to Unimak Pass, about 129 km northeast of Unalaska.

The Alaska Earthquake Centre said the quake was widely felt in communities along the southern coast, including Sand Point, Chignik, Unalaska and the Kenai Peninsula.

A magnitude 5.2 aftershock was reported 11 minutes later, centred roughly in the same area, the Alaska Earthquake Centre said.

“It was a pretty good shaker here,” said David Adams, co-manager of Marine View Bed and Breakfast in Sand Point.

“We’re doing OK.” He said all guests were accounted for and “the structure itself is sound.”

Rita Tungul, front desk assistant at the Grand Aleutian Hotel in Unalaska, said she felt some shaking but it wasn’t strong.

Her co-worker didn’t feel the quake at all, she said.

“You could see the water kind of shaking and shimmering during the quake,” she said.

Unalaska officials sent out a message saying the city is just outside the warning zone and they aren’t ordering evacuations right now.

Unalaska public safety officials earlier had sent out a release saying they would be conducting tests of the community’s tsunami warning sirens.