Ground deformation reveals the scale-invariant conduit dynamics driving explosive basaltic eruptions

M. Ripepe (), G. Lacanna, M. Pistolesi, M. C. Silengo, A. Aiuppa, M. Laiolo, F. Massimetti, L. Innocenti, M. Della Schiava, M. Bitetto, F. P. Monica, T. Nishimura, M. Rosi, D. Mangione, A. Ricciardi, R. Genco, D. Coppola, E. Marchetti and D. Delle Donne
Additional contact information
M. Ripepe: Università di Firenze
G. Lacanna: Università di Firenze
M. Pistolesi: Università di Pisa
M. C. Silengo: Università di Firenze
A. Aiuppa: Università di Palermo
M. Laiolo: Università di Firenze
F. Massimetti: Università di Firenze
L. Innocenti: Università di Firenze
M. Della Schiava: Università di Firenze
M. Bitetto: Università di Palermo
F. P. Monica: Università di Firenze
T. Nishimura: Tohoku University
M. Rosi: Università di Pisa
D. Mangione: Dipartimento di Protezione Civile
A. Ricciardi: Dipartimento di Protezione Civile
R. Genco: Università di Firenze
D. Coppola: Università di Torino
E. Marchetti: Università di Firenze
D. Delle Donne: Osservatorio Vesuviano

Nature Communications, 2021, vol. 12, issue 1, 1-8

Abstract: Abstract The mild activity of basaltic volcanoes is punctuated by violent explosive eruptions that occur without obvious precursors. Modelling the source processes of these sudden blasts is challenging. Here, we use two decades of ground deformation (tilt) records from Stromboli volcano to shed light, with unprecedented detail, on the short-term (minute-scale) conduit processes that drive such violent volcanic eruptions. We find that explosive eruptions, with source parameters spanning seven orders of magnitude, all share a common pre-blast ground inflation trend. We explain this exponential inflation using a model in which pressure build-up is caused by the rapid expansion of volatile-rich magma rising from depth into a shallow (

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-21722-2

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DOI: 10.1038/s41467-021-21722-2

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