Ramba uchiverenga ndima iyi - Zvitsuwa zveAleutian zviri pedyo nomuganhu unochinjanisa mahwendefa epasi pano apo Pacific Plate inosangana neNorth American Plate. Nzvimbo inosangana mahwendefa aya inoratidzwa pasi pegungwa neAleutian Trench. Pacific Plate inodonha pasi peNorth American Plate pamwe neAleutian subduction zone iyo inotambanuka kweanenge makiromita zviuru zvina. Nzvimbo inonyura mvura iri nzvimbo yakakura ine zvikanganiso zvinogona kukonzera kudengenyeka kwenyika kukuru, dzimwe nguva kunokonzera tsunami. Kudengenyeka kwepasi kweAleutian Islands muna 1946
uye kudengenyeka kwenyika kwakaitika muna 1964 kuAlaska, kwakanga kwakakura 8.6 uye 9.2.