Análisis comparativo 2002-2014 del riesgo volcánico en las localidades de Cherquenco y Melipeuco, Región de la Araucanía, Chile

Javiera Millaray Tapia Valenzuela

doi:10.5354/0719-5370.2019.52661

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Comparative analysis 2002-2014 of the Volcanic risk in Cherquenco and Melipeuco towns, Araucanía Region, Chile

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Javiera Millaray Tapia Valenzuela Pontificia Universidad Católica de Chile, Santiago, Chile.

No. 57 (2019)

https://doi.org/10.5354/0719-5370.2019.52661

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Abstract

The subplinian phases of the Llaima volcano (Araucanía Region, Chile) represent a high risk for the population of the two closest human settlements: Melipeuco and Cherquenco. In this way, the main objective of this work is to calculate and analyze the volcanic risk in both towns, for the years 2002 and 2014. This work was divided into three stages. First, a bibliographic compilation phase, to understand the dynamics of the Llaima volcano and its volcanic hazards. In a second stage, the vulnerability of the susceptible settlements to be affected was determined. Finally, a multicriteria analysis was carried out to have a first approximation to the volcanic risk in the study area for the years 2002 and 2014. The results showed that the two study areas analyzed have risk values that increase considerably in these twelve years of analysis comparative; especially in the case of Melipeuco, where the risk went from high to extreme.

Keywords:

Llaima volcanic , volcanic hazards , volcanic risk , volcanic vulnerability

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Tapia Valenzuela, J. M. (2019). Comparative analysis 2002-2014 of the Volcanic risk in Cherquenco and Melipeuco towns, Araucanía Region, Chile. Investigaciones Geográficas, (57). https://doi.org/10.5354/0719-5370.2019.52661

Comparative analysis 2002-2014 of the Volcanic risk in Cherquenco and Melipeuco towns, Araucanía Region, Chile

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