Factors Contributing to Volcano Lateral Collapse

Matteo Roverato; Federico Di Traglia; Jonathan Procter; Engielle Paguican; Anja Dufresne

doi:10.1007/978-3-030-57411-6_5

Factors Contributing to Volcano Lateral Collapse

Matteo Roverato^*, Federico Di Traglia, Jonathan Procter, Engielle Paguican, Anja Dufresne

^*Corresponding author for this work

Geography

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

22 Citations (Scopus)

Abstract

Many factors can lead to volcano lateral collapse, which can produce devastating debris avalanches that travel up to several tens to over 100 km and cover hundreds to more than a thousand km² with debris. Volcanic lateral collapses are severe hazards because of their destructive power and size, and sudden onset. Although their frequency of occurrence is not as high as those of smaller volcanic mass movements, such as rock falls and lahars, globally large collapses ≥0.1 km³ have occurred at least five times per century over the last 500 years. A large variety of destabilizing factors such as over-steepened slopes, magma intrusions, hydrothermal activity, climate fluctuations, deformation of the basement, and faulting can create the conditions for volcano collapse. Once a volcano reaches its critical point, a mechanism is necessary to trigger the failure event. We present the state-of-the-art of the knowledge acquired in the last few decades concerning the causes of large-scale volcanic failures to better understand the triggers, preparatory factors, and timing of volcano lateral collapse.

Original language	English
Title of host publication	Advances in Volcanology
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	91-119
Number of pages	29
DOIs	https://doi.org/10.1007/978-3-030-57411-6_5
Publication status	Published - 2021

Publication series

Name	Advances in Volcanology
ISSN (Print)	2364-3277
ISSN (Electronic)	2364-3285

Keywords

Debris avalanche
Instability factors
Triggering mechanisms
Volcanic lateral collapse

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10.1007/978-3-030-57411-6_5

Cite this

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abstract = "Many factors can lead to volcano lateral collapse, which can produce devastating debris avalanches that travel up to several tens to over 100 km and cover hundreds to more than a thousand km2 with debris. Volcanic lateral collapses are severe hazards because of their destructive power and size, and sudden onset. Although their frequency of occurrence is not as high as those of smaller volcanic mass movements, such as rock falls and lahars, globally large collapses ≥0.1 km3 have occurred at least five times per century over the last 500 years. A large variety of destabilizing factors such as over-steepened slopes, magma intrusions, hydrothermal activity, climate fluctuations, deformation of the basement, and faulting can create the conditions for volcano collapse. Once a volcano reaches its critical point, a mechanism is necessary to trigger the failure event. We present the state-of-the-art of the knowledge acquired in the last few decades concerning the causes of large-scale volcanic failures to better understand the triggers, preparatory factors, and timing of volcano lateral collapse.",

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AU - Roverato, Matteo

AU - Di Traglia, Federico

AU - Procter, Jonathan

AU - Paguican, Engielle

AU - Dufresne, Anja

PY - 2021

Y1 - 2021

N2 - Many factors can lead to volcano lateral collapse, which can produce devastating debris avalanches that travel up to several tens to over 100 km and cover hundreds to more than a thousand km2 with debris. Volcanic lateral collapses are severe hazards because of their destructive power and size, and sudden onset. Although their frequency of occurrence is not as high as those of smaller volcanic mass movements, such as rock falls and lahars, globally large collapses ≥0.1 km3 have occurred at least five times per century over the last 500 years. A large variety of destabilizing factors such as over-steepened slopes, magma intrusions, hydrothermal activity, climate fluctuations, deformation of the basement, and faulting can create the conditions for volcano collapse. Once a volcano reaches its critical point, a mechanism is necessary to trigger the failure event. We present the state-of-the-art of the knowledge acquired in the last few decades concerning the causes of large-scale volcanic failures to better understand the triggers, preparatory factors, and timing of volcano lateral collapse.

AB - Many factors can lead to volcano lateral collapse, which can produce devastating debris avalanches that travel up to several tens to over 100 km and cover hundreds to more than a thousand km2 with debris. Volcanic lateral collapses are severe hazards because of their destructive power and size, and sudden onset. Although their frequency of occurrence is not as high as those of smaller volcanic mass movements, such as rock falls and lahars, globally large collapses ≥0.1 km3 have occurred at least five times per century over the last 500 years. A large variety of destabilizing factors such as over-steepened slopes, magma intrusions, hydrothermal activity, climate fluctuations, deformation of the basement, and faulting can create the conditions for volcano collapse. Once a volcano reaches its critical point, a mechanism is necessary to trigger the failure event. We present the state-of-the-art of the knowledge acquired in the last few decades concerning the causes of large-scale volcanic failures to better understand the triggers, preparatory factors, and timing of volcano lateral collapse.

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KW - Instability factors

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Factors Contributing to Volcano Lateral Collapse

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