Westdahl Volcano
Summit area of Westdahl Volcano, February 1993.
Highest point
Elevation5,426 ft (1,654 m)[1][2]
Prominence1,365 ft (416 m)
Coordinates54°31′05″N 164°39′00″W / 54.518°N 164.65°W / 54.518; -164.65
Geography
Westdahl Volcano is located in Alaska
Westdahl Volcano
Westdahl Volcano
Location in Alaska
LocationUnimak Island,Alaska, USA
Parent rangeAleutian Range
Topo mapUSGS Unimak C-2
Geology
Age of rockHolocene
Mountain typeStratovolcano
Volcanic arc/beltAleutian Arc
Last eruption1991 to 1992

Westdahl Peak, also known as Westdahl Volcano or Mount Westdahl, is a stratovolcano of the Aleutian Range, in the U.S. state of Alaska. The volcano last erupted from November 29, 1991, to January 15, 1992.[2][3]

It is on Unimak Island, near the western tip of the Alaska Peninsula. The volcano has a second summit, called Faris Peak, which is actually the highest point at 5,426 feet (1,654 m).[4] Westdahl Peak currently has a summit elevation of 5,118 feet (1,560 m).[2]

Other historical eruptions, all attributed to Westdahl by the Alaska Volcano Observatory, have been reported in 1795–1796, 1827–1829, 1951, 1964 and 1978. A couple eruptions were originally reported to be from nearby Pogromni Volcano, but the peak is old, eroded and most likely hasn't erupted since Pleistocene time.[5][2]

Map showing volcanoes of Alaska Peninsula

See also

References

  • "Westdahl". Global Volcanism Program. Smithsonian Institution.
  • Volcanoes of the Alaska Peninsula and Aleutian Islands-Selected Photographs
  • Alaska Volcano Observatory


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