They exist 27 of the 92 active volcanoes According to the specific risk ranking of active volcanoes in the national territory, which have been intensively studied due to their most recent eruptions: Villarrica (2015), Llaima (2007-2009), Calbuco (2015), Puyehue-Cordón Caulle (1960, 2011), Osorno (1835), Mocho-Choshuenco (1864), Carrán-Los Venados (1979), Chaitén (2008) and Lonquimay (1988-1989).