US EditionMagnitude 7.3 earthquake recorded off Alaska coast; tsunami warning issued
ALASKA PENINSULA, ALASKA, UNITED STATES, JUL 16 – Tsunami warning issued after 7.3 magnitude quake was later canceled with only minor sea level changes reported, reflecting no significant tsunami impact, officials said.
- About 54 miles south of Sand Point, Alaska, a magnitude 7.3 earthquake struck on July 16, 2025, at 12:37 p.m., USGS said.
- Alaska lies within the Pacific Ring of Fire, with the Alaska-Aleutian subduction zone producing more magnitude 8+ quakes last century than any other region.
- The U.S. Tsunami Center said the alert covered roughly 700-mile stretch from near Homer to Unimak Pass.
- The tsunami warning was lowered to an advisory by 1:50 p.m. and canceled by 2:45 p.m., ending the immediate alert for Southcentral and Southwest Alaska.
- The Alaska Earthquake Center has recorded over 20 aftershocks, with the largest at magnitude 5.2, and USGS estimates more than a 90% chance of magnitude 5+ quakes next week.
170 Articles
170 Articles
Why Alaska's Latest 7.3 Magnitude Earthquake Has Got Scientists' Attention
Wednesday's magnitude 7.3 earthquake off Alaska's Aleutian Islands chain struck in a region that has experienced a handful of powerful quakes within the last five years - including one that shook communities almost exactly two years earlier.
Associated Press News
Alaska is the most earthquake-prone state. Here is why Wednesday's earthquake was notable
Wednesday’s magnitude 7.3 earthquake off Alaska’s Aleutian Islands chain struck in a region that has experienced a handful of powerful quakes within the last five years.
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