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Communities in areas along a 700-mile (1,127-km) stretch of Alaska鈥檚 southern coast ordered residents to higher ground after a powerful earthquake Wednesday, but officials quickly downgraded a tsunami warning for the region. There were no immediate reports of significant damage.

The earthquake, with a preliminary magnitude of 7.3, struck at 12:37 p.m. local time south of Sand Point, a community of about 600 people on Popof Island, in the Aleutian chain, according to the Alaska Earthquake Center. The first waves were projected to land there, but the state’s emergency management division said an hour after the quake that it had received no reports of damage.

鈥淲e have seen聽聽that have not generated significant tsunami waves, but we鈥檙e treating it seriously and going through our procedures, making sure communities are notified so they can activate their evacuation procedures,鈥� division spokesperson Jeremy Zidek said.

The quake was felt as far away as Anchorage, almost 600 miles (966 km) to the northeast.

Alaska tsunami warning issued

The National Tsunami Warning Center issued a warning for an area stretching from about 40 miles (64.4 km) southwest of Homer to Unimak Pass, a distance of about 700 miles (1,126 kilometers). Among the larger communities in the area is Kodiak, with a population of about 5,200. The warning was downgraded to an advisory about an hour later, and canceled just before 2:45 p.m.

In Unalaska, a fishing community of about 4,100, officials urged people in possible inundation zones to move at least 50 feet above sea level or 1 mile (1.6 km) inland. In King Cove, which has about 870 residents on the south side of the Alaska Peninsula, officials sent an alert calling on those in the coastal area to move to higher ground.

The National Weather Service said in posts on social media that there was no tsunami threat for other U.S. and Canadian Pacific coasts in North America, including Washington, Oregon and California.

Alaska’s southern coast is earthquake-prone, and Wednesday’s was the fifth in roughly the same area since 2020 exceeding magnitude 7, state seismologist Michael West said.

鈥淪omething鈥檚 moving in this area,鈥� he said. 鈥淚 would not call this an isolated earthquake. It appears to be part of a larger sequence spanning the last several years.鈥�

That has the attention of seismologists, he said.

鈥淭his area has been and remains capable of larger earthquakes and earthquakes capable of significant tsunami damage,鈥� he said.