Alaska-Aleutian megathrust

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The Alaska-Aleutian megathrust is a thrust fault that runs for 3,600 km from near Kamchatka in the west to the Gulf of Alaska in the east.[1] It forms the interface between the subducting Pacific Plate and the overriding North American Plate. Movement on the megathrust has been responsible for several great historical earthquakes including the M 9.2 1964 Alaska earthquake, M 8.7 1965 Rat Islands earthquake and the M 8.6 1957 Andreanof Islands earthquake, each of them triggering large tsunamis.


  1. ^ National Research Council (U.S.). Committee on the Science of Earthquakes (2003). "3.2 Seismic Hazards in the United States". Living on an Active Earth: Perspectives on Earthquake Science. p. 136. ISBN 9780309065627. Retrieved 9 May 2012.