Shallow conduit dynamics fuel the unexpected paroxysms of Stromboli volcano during the summer 2019

Abstract Open conduit basaltic volcanoes can be potentially hazardous as the eruptive activity may turn suddenly from a steady state to highly explosive. Unexpected changes in explosion intensity are recurrent at Stromboli volcano, where major explosions and large-scale paroxysms sometimes break off...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Marco Viccaro, Andrea Cannata, Flavio Cannavò, Rosanna De Rosa, Marisa Giuffrida, Eugenio Nicotra, Maurizio Petrelli, Gaia Sacco
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/675b3e84fa654d6d95e754087da41558
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:675b3e84fa654d6d95e754087da41558
record_format	dspace
spelling	oai:doaj.org-article:675b3e84fa654d6d95e754087da415582021-12-02T14:01:24ZShallow conduit dynamics fuel the unexpected paroxysms of Stromboli volcano during the summer 201910.1038/s41598-020-79558-72045-2322https://doaj.org/article/675b3e84fa654d6d95e754087da415582021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-79558-7https://doaj.org/toc/2045-2322Abstract Open conduit basaltic volcanoes can be potentially hazardous as the eruptive activity may turn suddenly from a steady state to highly explosive. Unexpected changes in explosion intensity are recurrent at Stromboli volcano, where major explosions and large-scale paroxysms sometimes break off the ordinary, Strombolian activity with little or no warning. Two powerful paroxysmal eruptions took place at Stromboli volcano during the summer 2019, causing widespread fires, consistent damages across the island, injuries and one fatality. Prediction of similar events is really challenging for the modern volcanology, though models propaedeutic to early-warning monitoring systems are not properly assessed yet in many volcanoes worldwide. Here, we present a multi-parametric study that combines petrological and geophysical data to investigate processes generating the two paroxysms. The time information derived by Li enrichments in plagioclase crystals correlates with tilt time series derived by seismometers installed on the island, highlighting the dominant role of shallow conduit processes in triggering the 2019 paroxysmal activity. Our dataset conceives a mechanism of gas slug formation and fast upward migration that finally triggered the eruptions in very limited times. The proposed model questions our capability to forecast such kind of paroxysms in times that are rapid enough to allow mitigation of the associated risk.Marco ViccaroAndrea CannataFlavio CannavòRosanna De RosaMarisa GiuffridaEugenio NicotraMaurizio PetrelliGaia SaccoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Marco Viccaro Andrea Cannata Flavio Cannavò Rosanna De Rosa Marisa Giuffrida Eugenio Nicotra Maurizio Petrelli Gaia Sacco Shallow conduit dynamics fuel the unexpected paroxysms of Stromboli volcano during the summer 2019
description	Abstract Open conduit basaltic volcanoes can be potentially hazardous as the eruptive activity may turn suddenly from a steady state to highly explosive. Unexpected changes in explosion intensity are recurrent at Stromboli volcano, where major explosions and large-scale paroxysms sometimes break off the ordinary, Strombolian activity with little or no warning. Two powerful paroxysmal eruptions took place at Stromboli volcano during the summer 2019, causing widespread fires, consistent damages across the island, injuries and one fatality. Prediction of similar events is really challenging for the modern volcanology, though models propaedeutic to early-warning monitoring systems are not properly assessed yet in many volcanoes worldwide. Here, we present a multi-parametric study that combines petrological and geophysical data to investigate processes generating the two paroxysms. The time information derived by Li enrichments in plagioclase crystals correlates with tilt time series derived by seismometers installed on the island, highlighting the dominant role of shallow conduit processes in triggering the 2019 paroxysmal activity. Our dataset conceives a mechanism of gas slug formation and fast upward migration that finally triggered the eruptions in very limited times. The proposed model questions our capability to forecast such kind of paroxysms in times that are rapid enough to allow mitigation of the associated risk.
format	article
author	Marco Viccaro Andrea Cannata Flavio Cannavò Rosanna De Rosa Marisa Giuffrida Eugenio Nicotra Maurizio Petrelli Gaia Sacco
author_facet	Marco Viccaro Andrea Cannata Flavio Cannavò Rosanna De Rosa Marisa Giuffrida Eugenio Nicotra Maurizio Petrelli Gaia Sacco
author_sort	Marco Viccaro
title	Shallow conduit dynamics fuel the unexpected paroxysms of Stromboli volcano during the summer 2019
title_short	Shallow conduit dynamics fuel the unexpected paroxysms of Stromboli volcano during the summer 2019
title_full	Shallow conduit dynamics fuel the unexpected paroxysms of Stromboli volcano during the summer 2019
title_fullStr	Shallow conduit dynamics fuel the unexpected paroxysms of Stromboli volcano during the summer 2019
title_full_unstemmed	Shallow conduit dynamics fuel the unexpected paroxysms of Stromboli volcano during the summer 2019
title_sort	shallow conduit dynamics fuel the unexpected paroxysms of stromboli volcano during the summer 2019
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/675b3e84fa654d6d95e754087da41558
work_keys_str_mv	AT marcoviccaro shallowconduitdynamicsfueltheunexpectedparoxysmsofstrombolivolcanoduringthesummer2019 AT andreacannata shallowconduitdynamicsfueltheunexpectedparoxysmsofstrombolivolcanoduringthesummer2019 AT flaviocannavo shallowconduitdynamicsfueltheunexpectedparoxysmsofstrombolivolcanoduringthesummer2019 AT rosannaderosa shallowconduitdynamicsfueltheunexpectedparoxysmsofstrombolivolcanoduringthesummer2019 AT marisagiuffrida shallowconduitdynamicsfueltheunexpectedparoxysmsofstrombolivolcanoduringthesummer2019 AT eugenionicotra shallowconduitdynamicsfueltheunexpectedparoxysmsofstrombolivolcanoduringthesummer2019 AT mauriziopetrelli shallowconduitdynamicsfueltheunexpectedparoxysmsofstrombolivolcanoduringthesummer2019 AT gaiasacco shallowconduitdynamicsfueltheunexpectedparoxysmsofstrombolivolcanoduringthesummer2019
_version_	1718392143876194304

Shallow conduit dynamics fuel the unexpected paroxysms of Stromboli volcano during the summer 2019

Ejemplares similares