Available Weekly Reports
- Volcano Info
- Search Database
- Info & Contacts
There are no activity reports for Huanquihue Group.
Available Weekly Reports
There are no Weekly Reports available for Huanquihue Group.
Summary of eruption dates and Volcanic Explosivity Indices (VEI).
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|1750 ± 100 years||Unknown||Confirmed||Radiocarbon (uncorrected)||Achín-Niellu (Volcán Escorial)|
The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.
Corbella H, Susana Alonso M, 1987. Post-glacial hydroclastic and pyroclastic deposits in the Lanin National Park, north Patagonian cordillera, Nequen, Argentina. Andean Volc Internatl Symp, Tucaman, Argentina, 9 p.
Gonzalez-Ferran O, 1995. Volcanes de Chile. Santiago: Instituto Geografico Militar, 635 p.
Inbar M, Risso C, Parica C, 1995. The morphological development of a young lava flow in the south western Andes - Neuquen, Argentina. Zeit Geomorph, 39: 479-487.
Lara L, Rodriguez C, Moreno H, Perez de Arce C, 2001. Geocronologia K-Ar y geoquimica del volcanismo plioceno superior-pleistoceno de los Andes del sur (39-42° S). Rev Geol Chile, 28: 67-90.
A group of young basaltic volcanoes lies in Argentina near the Chilean border, south of Lanín volcano. 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.