Anchorage, July 17, 2025 — A powerful 7.3-magnitude earthquake struck off the coast of Alaska on Wednesday afternoon, triggering a tsunami warning for thousands of residents along the state’s southern coastline and the Alaska Peninsula.
The quake occurred at 12:37 p.m. local time, with its epicenter located approximately 54 miles south of Sand Point, near Popof Island. The shallow depth of 20.1 kilometers raised concerns about potential surface-level damage and increased tsunami risk.
Evacuations and Emergency Alerts
The National Tsunami Warning Center (NTWC) issued an alert for coastal areas stretching from Kennedy Entrance (southwest of Homer) to Unimak Pass (northeast of Unalaska)—a span of nearly 700 miles. Communities including Kodiak, Cold Bay, King Cove, and Unalaska were urged to evacuate to higher ground immediately.
Local officials activated emergency protocols, with sirens sounding and alerts sent via mobile networks. In Sand Point, the first waves were expected around 1:30 p.m., followed by Cold Bay at 2:25 p.m. and Kodiak at 2:40 p.m., according to NOAA estimates.
No Immediate Reports of Damage
Despite the quake’s strength, there were no immediate reports of structural damage or casualties, though authorities continue to monitor the situation closely. Alaska’s Emergency Management Division emphasized the importance of caution, noting that tsunami waves can arrive in multiple surges, with the first not necessarily being the largest.
Historical Context and Ongoing Risk
Alaska, situated along the Pacific Ring of Fire, is one of the most seismically active regions in the world. The state has experienced several major earthquakes, including the devastating 9.2-magnitude quake in 1964, which remains the most powerful ever recorded in North America.
Wednesday’s tremor is a stark reminder of the region’s vulnerability. Officials in the Pacific Northwest, including Washington State, are evaluating potential downstream impacts, though no warnings have been issued beyond Alaska at this time.
This is a developing story. Authorities urge residents in affected areas to remain alert and follow official guidance.
