7.4 magnitude quake hits Alaska, tsunami warning issued

No casualties or damage have been reported so far. A tsunami warning has been issued.

Juneau:A powerful 7.4 earthquake has struck the Alaska Peninsula and a tsunami warning has been issued.

According to the US Geological Survey, the 7.4 magnitude quake struck Tuesday at about 11:12 pm PST. It had a depth of 6 miles (9.6 kilometres) and was centred 60 miles (96 kilometres) south-southeast of Perryville, Alaska.

Early Wednesday, the Pacific Tsunami Warning Center said the tsunami warning that was issued for South Alaska, the Alaska Peninsula and the Aleutian Islands had been cancelled.

A tsunami advisory was cancelled Tuesday evening for coastal areas east and west of the tsunami warning areas.

On Kodiak Island, the local high school opened its doors for evacuees, as did the local Catholic school, the Anchorage Daily News reported.

We've got a high school full of people," said Larry LeDoux, superintendent of the Kodiak School District. "I've been passing out masks since the first siren sounded," he said.

"Everything's as calm as can be. We've got probably some people and all wearing masks," he said.

The centre said for other US and Canadian Pacific coasts in North America, there is no tsunami threat.