National Tsunami Warning Center

Hope McKenney/KUCB

 

 

A 7.8-magnitude earthquake hit south of Chignik last week, prompting tsunami warnings in communities across coastal Alaska. 

Courtesy of David Walls

A magnitude-7.8 Aleutian earthquake late Tuesday night prompted tsunami warnings in communities across coastal Alaska, from Homer to Unalaska.  

Sand Point is a fishing community of about a thousand people, located about 550 miles southwest of Anchorage in the eastern portion of the Aleutian Chain. Earthquake damage closed both its city docks, which it uses to land the M/V Tustumena ferry and freight boats, and damaged the road to the harbor.

National Weather Service

 

Updated 7/22/2020 at 12:30 a.m.

The Department of Public Safety says Unalaska is in the clear after a tsunami warning Tuesday night caused Unalaskans to evacuate to higher ground. 

Communities throughout the Alaska Peninsula and Eastern Aleutians received warnings after a magnitude-7.8 earthquake hit approximately 75 miles south of Chignik.  

Nathaniel Herz/Alaska Public Media

Updated Friday 11/30 at 1:40 p.m.

The National Tsunami Warning Center has canceled the tsunami warnings issued for southcentral Alaska Friday morning.

NTWC officials say no tsunami is expected following a large earthquake that struck near Anchorage around 8:30 a.m.

National Tsunami Warning Center screenshot

 

No tsunami is expected in the Aleutians, after a large earthquake near Russia’s Kamchatka Peninsula. The National Tsunami Warning Center briefly issued a tsunami advisory Monday for the western Aleutian Islands.

 

“There was a magnitude 6.5 [earthquake Monday] morning and this was a magnitude 7.8," said tsunami science warning officer Paul Huang. "In theory, we don't know when the next one will come. It could be a few minutes from now. It could be another 100 years.”