Lanín is an ice-clad , cone-shaped stratovolcano on the border of Argentina and Chile . It forms part of two national parks : Lanín in Argentina and Villarrica in Chile . It is a symbol of the Argentine province of Neuquén , being part of its flag and its anthem . Although the date of its last eruption is not known , it is estimated to have occurred within the last 10,000 years . Following the 1906 Valparaíso earthquake a local newspaper reported the volcano to have erupted , but a work published in 1917 by Karl Sapper disputed this
1906 Valparaíso earthquake
1906 Valparaíso earthquake
Lanín