- The Quilotoa caldera was formed by the collapse of the Quilotoa volcano.
- Following the 1280 Plinian eruption.
- The term caldera was introduced by the German geologist Leopold von Buch.
- Quilotoa is the most western volcano in the Ecuadorian Andes, Cotopaxi Province, Ecuador.
(Photo credit: Gabriel Castillo)
Ecuador, Leopold von Buch, Quilotoa