A powerful magnitude-7.3 earthquake struck the Alaska Peninsula at 12:37 p.m. local time on Wednesday, 55 miles (87 km) south of Sand Point and about 12 miles beneath the seabed, according to the U.S. Geological Survey. Shaking was reported across the peninsula and as far away as Anchorage. The National Tsunami Warning Center issued an immediate tsunami warning for a roughly 700-mile stretch of coastline from Kennedy Entrance to Unimak Pass, covering sparsely populated communities including Sand Point, Kodiak, Cold Bay and Unalaska. Sirens sounded and local authorities instructed residents in low-lying areas to move to higher ground, though no significant wave heights were recorded. Within an hour, the warning was downgraded to an advisory and then canceled at 2:43 p.m. after sea-level gauges indicated only minor fluctuations. Officials said there were no reports of injuries and only limited damage, such as broken merchandise in a Sand Point store. The National Weather Service confirmed the quake posed no threat to other U.S. or Canadian Pacific coastlines. State seismologist Michael West noted the tremor is the fifth event of magnitude 7 or greater in the same offshore zone since 2020, underscoring the heightened seismic activity along the Alaska-Aleutian subduction boundary.