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The warnings, issued for the US states of Alaska and Hawaii, the US Pacific territory of Guam, were later cancelled.
The tsunami warnings issued across the Pacific Ocean after a shallow earthquake of magnitude 8.2 struck the Alaska Peninsula have been lifted.
The quake struck at 10:15 pm on Wednesday (06:15 GMT Thursday) at a depth of 35km (22 miles), The US Geological Survey (USGS) said.
In Alaska, the National Tsunami Warning Center (NTWC) had issued warnings for southern parts of the state, the Peninsula, and Pacific coastal areas from Hinchinbrook Entrance to Unimak Pass.
The US states of California, Oregon, and Washington and the Canadian province of British Columbia were not expected to see any significant tsunami threats, Dave Snider, tsunami warning coordinator with the NTWC, told Reuters news agency.
“There might be some minor damage in some places [in Alaska], but a significant tsunami and significant damage from something like that is not expected,” Snider said. “That’s really fortunate in this case because 8.2 is really strong enough to make a sizable wave, especially in that location of the world.”
Thu Jul 29 07:03:47 UTC 2021 event picture pic.twitter.com/TGf2yerpzh
— NWS Tsunami Alerts (@NWS_NTWC) July 29, 2021
The Pacific Tsunami Warning Center (PTWC) had also issued a warning for the US state of Hawaii and the US Pacific territory of Guam.
Meanwhile, Japan’s Meteorological Agency said there was no danger to the country, the public broadcaster NHK said.
The maximum wave height detected was 21cm (eight inches) above tide level with surges hitting at least six points off Alaska’s coastline, according to the NTWC.
Locals living close to sea level were told to evacuate to higher ground. No injuries or deaths were reported.
Eight aftershocks
Videos posted on social media by journalists and residents in Kodia showed people driving away from the coast as warning sirens could be heard.
A Tsunami Warning remains in effect. A Tsunami Advisory also remains in effect. pic.twitter.com/QLTiROkiri
— NWS Anchorage (@NWSAnchorage) July 29, 2021
The NTWC had earlier said that it was also evaluating the level of tsunami danger for other US and Canadian Pacific coastal areas.
The USGS had earlier pegged the magnitude of the quake at 7.2.
The USGS said the quake was followed by eight aftershocks in the region, with two above magnitude 6.0.
Thu Jul 29 07:42:22 UTC 2021 event picture pic.twitter.com/8Lj3kVBU8Q
— NWS Tsunami Alerts (@NWS_NTWC) July 29, 2021
Alaska is part of the seismically active Pacific Ring of Fire.
The state was hit by a 9.2-magnitude earthquake in March 1964, the strongest ever recorded in North America.
It devastated the capital Anchorage and unleashed a tsunami that slammed the Gulf of Alaska, the US west coast, and Hawaii.
More than 250 people were killed by the quake and the tsunami.
A 7.5 magnitude earthquake also caused tsunami waves in Alaska’s southern coast in October, but no casualties were reported.
