Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/15225
Authors: | Mattia, Mario* Di Lieto, Bellina* Ganci, Gaetana* Bruno, Valentina* Pierdomenico, Romano* Ciancitto, Francesco* De Martino, Prospero* Gambino, Salvatore* Aloisi, Marco* Sciotto, Mariangela* Scarpa, Roberto* Ferlito, Carmelo* |
Title: | The 2019 Eruptive Activity at Stromboli Volcano: A Multidisciplinary Approach to Reveal Hidden Features of the “Unexpected” 3 July Paroxysm | Journal: | Remote Sensing | Series/Report no.: | /13 (2021) | Publisher: | MDPI | Issue Date: | 11-Oct-2021 | DOI: | 10.3390/rs13204064 | Keywords: | Stromboli volcano ground deformations thermal monitoring modelling of volcanic sources physics of volcanism geophysical monitoring |
Subject Classification: | 04.08. Volcanology | Abstract: | In July and August 2019, Stromboli volcano underwent two dangerous paroxysms previously considered “unexpected” because of the absence of significant changes in usually monitored parameters. We applied a multidisciplinary approach to search for signals able to indicate the possibility of larger explosive activity and to devise a model to explain the observed variations. We analysed geodetic data, satellite thermal data, images from remote cameras and seismic data in a timespan crossing the eruptive period of 2019 to identify precursors of the two paroxysms on a medium-term time span (months) and to perform an in-depth analysis of the signals recorded on a short time scale (hours, minutes) before the paroxysm. We developed a model that explains the observations. We call the model “push and go” where the uppermost feeding system of Stromboli is made up of a lower section occupied by a low viscosity, low density magma that is largely composed of gases and a shallower section occupied by the accumulated melt. We hypothesize that the paroxysms are triggered when an overpressure in the lower section is built up; the explosion will occur at the very moment such overpressure overcomes the confining pressure of the highly viscous magma above it. |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
remotesensing-13-04064.pdf | Open Access published article | 8.77 MB | Adobe PDF | View/Open |
Page view(s)
768
checked on Apr 24, 2024
Download(s)
51
checked on Apr 24, 2024