A subduction zone, composed of the deep Aleutian Trench coupled with a landward line of volcanoes, creates a series of offshore islands (the Aleutians) as well as a line of volcanoes along the ...

Two of those, in 1946 and 1964, were generated by very large earthquakes in the Aleutian Trench (both 9.2 magnitude shocks) and had the greatest impacts, which were almost entirely concentrated at ...