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Active and potentially active volcanoes of the Central Volcanic Zone of the Andes (CVZA)

Number of pages125
PublisherGeneva : University of Geneva
Publication date2023-10-19
Abstract

The Central Volcanic Zone of the Andes (CVZA) extends from southern Peru, through the altiplano of Bolivia, to Puna de Atacama of northern Chile and Argentina, between latitudes 14-28°S of the Andean cordillera, with altitudes raising up to more than 4,000 m above sea level. There is a large number of volcanoes in this area, the identification of the active ones is difficult though, particularly due to the lack of geochronological evidence and/or preserved historical records of eruptions. In this report we have considered the criteria of the geological services of three out of the four countries comprising the CVZA, also accounting for the 2023 relative volcanic risk rankings of Chile and Argentina. We have therefore, included active and potentially active volcanoes, i.e., all volcanoes that have had at least one eruption in the last 11,700 years; or the volcanoes that, in the absence of data or eruption occurrence in that period, show visible signs of activity such as degassing, seismicity or ground deformation. In this way, 59 active and potentially active volcanoes have been identified for the CVZA, and a brief description of their physical characteristics, eruptive frequency and types of hazards is provided.

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Keywords
  • Volcanic Risk Reduction
  • Hazards
  • Exposure
  • Vulnerability
  • Resilience
  • Central Volcanic Zone of the Andes
  • CVZA
  • Andean Volcanism
  • Active volcanoes
  • Potentially active volcanoes
Citation (ISO format)
REYES HARDY, Maria-Paz et al. Active and potentially active volcanoes of the Central Volcanic Zone of the Andes (CVZA). 2023 doi: 10.13097/archive-ouverte/unige:172413
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Technical informations

Creation10/19/2023 9:42:33 AM
First validation10/23/2023 10:08:04 AM
Update time12/13/2023 8:42:24 AM
Status update12/13/2023 8:42:24 AM
Last indexation01/18/2024 1:17:32 AM
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