3674 x 2439 px | 31,1 x 20,7 cm | 12,2 x 8,1 inches | 300dpi
Date de la prise de vue:
4 avril 2010
Lieu:
Lake Llanquihue, Costanera Vicente Perez Rosales, Puerto Varas, Los Lagos Region, Southern Chile
Informations supplémentaires:
Lake Llanquihue ('Lan-key-way'), having a surface area of 860 square kilometres (330 square miles) is the second largest lake in Chile. Two potentially explosive stratovolcanoes, composed of ash, pumice and andesite lava layers, stand on the south east shore of the lake. The 2652 metres (8701 feet) high Osorno Volcano has a classic cone, similar in appearance to Mount Fuji. The uppers slopes are covered in glaciers, due to the high levels of snowfall in the very moist maritime climate of Southern Chile's Los Lagos Region. The volcano, sitting in the 6 km wide caldera of an older volcano, is known to have erupted 11 times between 1575 and 1869. Charles Darwin, in the 2nd voyage of the Beagle, saw an eruption in January 1835. The neighbouring Calbuco Volcano has erupted 9 times since 1837, 30 cm 'bombs' of lava being thrown up to 8 km from the crater in one of the largest eruptions in Southern Chile in 1893-94. The last major eruption in 1961 produced ash columns 12-15 km high. Steam emissions were seen on 19 August 1996. Violent stratovolcanoes are common in subduction zones, where oceanic crust is drawn down under a continent. A third volcano, Tronador, is seen between the two.
