A magnitude-7.3 earthquake struck at 12:37 p.m. Alaska Daylight Time on Wednesday, 55 miles (87 kilometers) south of Sand Point on the Alaska Peninsula, the U.S. Geological Survey said. The quake occurred at a depth of about 12 miles and was felt as far away as Anchorage. The National Tsunami Warning Center promptly issued a tsunami warning for a roughly 700-mile stretch of coastline from Kennedy Entrance to Unimak Pass, covering sparsely populated communities such as Sand Point, Kodiak and Old Harbor. Sirens sounded and local officials instructed residents in low-lying areas to move to higher ground, but there were no immediate reports of injuries or major damage. About an hour after the tremor, the center downgraded the warning to an advisory and later canceled all alerts when water-level readings showed no significant tsunami waves. Wednesday’s earthquake is the fifth of magnitude 7 or greater in the same offshore region since 2020, according to the Alaska Earthquake Center, underscoring the area’s high seismic risk along the Alaska-Aleutian subduction zone.