Global Volcanism Program | Image GVP-04924
Along with its neighbor Osorno (upper left), Calbuco is one of the most active volcanoes of the southern Chilean Andes. The summit of Calbuco, seen at the left in this view from the SW, is the remnant of an older volcano that collapsed during the late Pleistocene, producing a debris avalanche that swept NNW into Lake Llanquihue. The smooth, snow-covered summit at the right is a young, historical lava-dome complex that postdates one of the largest historical eruptions in southern Chile during 1893-1894.
Photo by Hugo Moreno (University of Chile).