Huanquihue Volcano
Updated: 28 avril. 2024 06:36 GMT -
stratovolcano 2139 m / 7,018 ft
Argentine/Chili (centre) (Amérique du Sud), -39.88°S / -71.58°W
Condition actuelle: normal / en sommeil (1 sur 5)
Argentine/Chili (centre) (Amérique du Sud), -39.88°S / -71.58°W
Condition actuelle: normal / en sommeil (1 sur 5)
Huanquihue volcano is a group of young basaltic stratovolcanoes in western Argentina near the border with Chile and south of Lanín volcano.
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Eruptions du volcan Huanquihue: 1750 ± 100 years
Derniers séismes proches
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Introduction
The Huanquihué volcano group consists of a NNE-SSW-trending chain of stratovolcanoes of Pleistocene age, some of which lie along the border. A Holocene compound cinder cone with three nested craters up to 400 m in diameter that occupied a valley NE of Cerro Huanquihué and a tuff cone constructed within glacial Lake Epulafquen lies at the northern end of the chain. Growth of this Holocene tuff cone, La Angostura ("The Narrowing"), created a peninsula that formed a narrow channel connecting Lake Epulafquen and Lake Huechulafquen.A very recent lava flow from the base of the Achín-Niellu cinder cone (also known as Cerro Escorial) traveled north into glacial Lago Epulafquen, forming a prominent lava delta. The Escorial lava flow is an extremely youthful flow that diverted local drainages and formed new lakes.
A radiocarbon date of about 200 years before present was obtained from this flow, and local residents recount oral histories of the eruption, which was observed by their grandparents.
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Source: USGS/GVP volcano information
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