Augustine is the most active volcano of the eastern Aleutian arc. It consists of several overlapping lava domes that frequently produce explosive eruptions and are notorious for collapsing, producing glowing avalanches (block and ash flows).
Augustine volcano (image: Peter Kelly, AVO/USGS)
Augustine volcano had a devasta... [more]
Hayes volcano, named after Hayes Glacier, is a stratovolcano which was only discovered in 1975. It is located in a remote, mostly uninhabited and inaccessible part in the northern Tordrillo Mountains of the north-central Cook Inlet region about 135 km NW of Anchorage.
The ... [more]
Iliamna volcano is a large stratovolcano on the western side of the Cook Inlet, in Lake Clark National Park 220 km SW of Anchorage or 100 km NW of Homer.
The summit of Iliamna volcano with active fumaroles (photo: Tina Neal, Alaska Volcano Observatory / USGS)
There are several uncertain reports about activity in the past 250 years, but the only confirmed known historical erupti... [more]
Large stratovolcano in Alaska ca. 100 mi west of Anchorage. Redoubt last erupted in 1989. [more]
Mt Spurr volcano is the highest volcano in the Aleutian Volcanic Arc. the glacier-covered stratovolcano is located 130 km west of Anchorage and NE of Chakachamna Lake.
Mt Spurr had a violent sub-plinian eruption in 1992 and a large eruption in 1953, both ranking at VEI 4 a... [more]