Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/9766
Authors: Pappalardo, L.* 
D'Auria, L.* 
Cavallo, A.* 
Fiore, S.* 
Title: Petrological and seismic precursors of the paroxysmal phase of the last Vesuvius eruption on March 1944
Issue Date: 9-Sep-2014
Series/Report no.: /4 (2014)
DOI: 10.1038/srep06297
URI: http://hdl.handle.net/2122/9766
Keywords: Vesuvius
petrological precursors
seismological precursors
Subject Classification04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology 
04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismology 
04. Solid Earth::04.08. Volcanology::04.08.03. Magmas 
04. Solid Earth::04.08. Volcanology::04.08.05. Volcanic rocks 
04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring 
04. Solid Earth::04.08. Volcanology::04.08.07. Instruments and techniques 
05. General::05.02. Data dissemination::05.02.01. Geochemical data 
05. General::05.02. Data dissemination::05.02.02. Seismological data 
Abstract: Abrupt transitions in style and intensity are common during volcanic eruptions, with an immediate impact on the surrounding territory and its population. Defining the factors trigger such sudden shifts in the eruptive behavior as well as developing methods to predict such changes during volcanic crises are crucial goals in volcanology. In our research, the combined investigation of both petrological and seismic indicators has been applied for the first time to a Vesuvius eruption, that of March 1944 that caused the present dormant state of the volcano. Our results contribute to elucidate the evolution of the conduit dynamics that generated a drastic increase in the Volcanic Explosivity Index, associated to the ejection of huge amount of volcanic ash. Remarkably, our study shows that the main paroxysm was announced by robust changes in petrology consistent with seismology, thus suggesting that the development of monitoring methods to assess the nature of ejected juvenile material combined with conventional geophysical techniques can represent a powerful tool for forecasting the evolution of an eruption towards violent behavior. This in turn is a major goal in volcanology because this evidence can help decision-makers to implement an efficient safety strategy during the emergency (scale and pace of evacuation).
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2014_Pappalardo_suppl.pdfSupplementary material28.19 MBAdobe PDFView/Open
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