This image, captured in Chile by Lilli Freda from Italy’s Istituto Nazionale di Geofisica e Vulcanologia, depicts a cloudless sky, a calm blue lake (Llanquihué), and a picture-perfect mountain with a snow-covered top. But the serenity of the landscape is only apparent: the triangular structure in the background is in fact the very active and explosive Osorno volcano.
“Osorno is a 2652-m-high stratovolcano, one of the most active volcanoes of the southern Chilean Andes. During the past 14,000 years, explosive eruptions occurred frequently and produced pyroclastic flows and surges. Recorded historical eruptions have originated from both summit and flank vents producing basaltic and andesitic lava flows that have entered both Llanquihué and Todos los Santos lakes,” Freda explained.
There are 11 historical explosions recorded for Osorno between 1575 and 1869, when the last known eruption occurred.
Freda took this photo in 2004 during a field trip that followed the General Assembly of the International Association of Volcanology and Chemistry of the Earth’s Interior, held in Pucón, Chile, that year.
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