A tsunami advisory was issued on Sept. 18 for parts of Alaska’s Aleutian Islands after a powerful 7.8-magnitude earthquake struck off the east coast of Russia’s Kamchatka Peninsula, U.S. officials said.
The National Tsunami Warning Center in Palmer, Alaska, said the tsunami advisory covered the chain from Amchitka Pass, 125 miles west of Adak, to Attu, the westernmost island. Residents were urged to move away from beaches, harbors, and inlets, and follow instructions from local emergency officials.