A magnitude 8.2 earthquake occurred late Wednesday off the Alaska Peninsula, according to the American Institute of Geophysics (USGS), triggering a tsunami warning in the US state.
The alert was finally lifted a few hours later by the national surveillance network.
The earthquake occurred at 10:15 p.m. local time (6:15 a.m. GMT Thursday) 91 km southeast of the town of Perryville, located some 800 km from Anchorage, Alaska's largest city, according to the USGS.
The US tsunami warning system warned of "dangerous tsunami waves" along some coasts, before specifying two hours later that these waves would remain below 30 centimeters above tide level.
Tsunami warning sirens have sounded in Kodiak, an island of about 6,000 people on the coast, but no tsunami have been reported there according to local radio, KMXT.
Videos posted to social media by reporters and Kodiak residents showed people driving away from the coast as warning sirens were heard.
A tsunami watch was initially issued for Hawaii with residents to stay away from beaches, but it was lifted about two hours later.
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