Kupreanof

sopka – Stratovolcano, United States, North America Volcanic Regions

Kde

United States, North America Volcanic Regions

Typ (GVP)

Stratovolcano

Nadmořská výška

1 895 m

Tektonické prostředí

Subduction zone / Continental crust (> 25 km)

Poloha

56,011°, -159,797°

Kupreanof is the largest and NE-most of a group of five relatively closely spaced Quaternary volcanic centers opposite Stepovak Bay. A debris flow or block-and-ash flow with possible juvenile fragments descended a late-Pleistocene valley south of the volcano. This stratovolcano displays vigorous fumarolic activity, and although a "grayish-brown ash horizon" extending 15 km was reported by a pilot in 1987 after emissions from a SSW-flank solfatara field, the cause of this event is uncertain.

Text: Smithsonian Global Volcanism Program.

Údaje o sopce: Smithsonian Global Volcanism Program. Další sopky a průduchy.