What type of volcano is Aniakchak?

Answer 1

It is a volcanic caldera which is a large, bowl-shaped volcanic depression that forms when the top of a volcanic cone collapses into the space left after magma is ejected during a violent volcanic eruption.

Answer 2

Aniakchak is a stratovolcano, which is a steep-sided volcanic cone built up by the eruption of viscous lava flows, pyroclastic debris, and volcanic ash. It is located in the Aleutian Range in Alaska.