Options
Petrological and seismic precursors of the paroxysmal phase of the last Vesuvius eruption on March 1944
Author(s)
Language
English
Obiettivo Specifico
1V. Storia e struttura dei sistemi vulcanici
2V. Dinamiche di unrest e scenari pre-eruttivi
3V. Dinamiche e scenari eruttivi
5V. Sorveglianza vulcanica ed emergenze
Status
Published
JCR Journal
JCR Journal
Peer review journal
Yes
Title of the book
Issue/vol(year)
/4 (2014)
Electronic ISSN
2045-2322
Publisher
Nature Publishing Groups
Pages (printed)
6297
Issued date
September 9, 2014
Alternative Location
Subjects
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).
Type
article
File(s)
No Thumbnail Available
Name
2014_Pappalardo.pdf
Description
Main article
Size
7.97 MB
Format
Adobe PDF
Checksum (MD5)
def6b1c172b6df3c5be6d9664653527a
No Thumbnail Available
Name
2014_Pappalardo_suppl.pdf
Description
Supplementary material
Size
27.53 MB
Format
Adobe PDF
Checksum (MD5)
8bcdc26cfa4f9686d78fdbc14ad652ce