An earthquake has rocked the Alaska Peninsula, raising fears of a tsunami.

Tsunami sirens have been activated in Kodiak, Alaska, warning residents to seek higher ground.

The 8.2 magnitude quake occurred 20 miles beneath the sea, according to the US Tsunami Warning System.

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It hit 60 miles southeast of Chignik at 10.15 p.m. local time.

A tsunami warning has been issued for Guam and the Northern Mariana Islands.

Hawaii is under a less serious tsunami watch, while officials as far away as New Zealand are assessing the threat.

The 7.2 magnitude quake occurred 22 miles below sea level, according to the USGS.

Alaska’s southern peninsula is in the Ring of Fire, a region prone to earthquakes and volcanic eruptions.

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Nearly 75% of active volcanoes and 90% of earthquakes occur in the Pacific Ring.