Aleutian Arc
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The Aleutian Arc is a large volcanic arc in the U.S. state of Alaska. It consists of a number of active and dormant volcanoes that have formed as a result of the subduction of the Pacific plate beneat
Diagram showing the process of subduction and the formation of volcanic arcs.
Image showing the Aleutian Island Arc, along with the trench. The trench is denoted by the dark blue line to the south running parallel with the island arc. The area between the trench and the ridge delineates the blocks of crust that cause much of the seismic activity in the region.
Aleutian Range
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The Aleutian Range is a major mountain range located in southwest Alaska. It extends from Chakachamna Lake to Unimak Island, which is at the tip of the Alaska Peninsula. It includes all of the mountai
Aleutian Arc
…Aleutian Islands, this term is a geologic grouping rather than a geographic one. The Aleutian Arc extends through the Alaska Peninsula following the Aleutian Range through the Aleutian Islands. The arc makes up a sizable portion of the Pacific Ring of Fire, and is known for generating many strong magnitude earthquakes…
Alaska Peninsula, Peulik Volcano and Ukinrek Maars
Neacola 1
Aleutian Range FWS