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http://hdl.handle.net/2122/14227
Authors: | Ricco, Ciro* Petrosino, Simona* Aquino, Ida* Cusano, Paola* Madonia, Paolo* |
Title: | Tracking the recent dynamics of Mt. Vesuvius from joint investigations of ground deformation, seismicity and geofluid circulation | Journal: | Scientific Reports | Series/Report no.: | /11(2021) | Publisher: | Springer Nature | Issue Date: | 13-Jan-2021 | DOI: | 10.1038/s41598-020-79636-w | Keywords: | recent dynamics Mt. Vesuvius investigations ground deformation seismicity geofluid circulation |
Abstract: | We reconstruct the composite dynamics of Mt. Vesuvius volcano in the period 2012–2019 from the study of ground deformation, seismicity, and geofluid (groundwater and fumarolic fluids) circulation and recognize complex spatio-temporal variations in these observables at medium (years) and short (months) time-scales. We interpret the observed patterns as the combined effect of structural changes affecting the volcanic edifice and variations of the dynamics of the hydrothermal system. In particular, we identify a change in the activity state of Mt. Vesuvius. After the activity reached minimum levels in 2014, the centroid of the surface manifestations migrated towards the SE. Episodic variations of co-seismic and aseismic deformation and fluid release, if analysed separately, would likely have been interpreted as pseudo-random oscillations of the background geophysical and geochemical signals. When organised in a comprehensive, multiparametric fashion, they shed light on the evolution of the volcano in 4D (x,y,z, time) space. These inferences play a crucial role in the formulation of civil protection scenarios for Mt. Vesuvius, a high risk, densely urbanized volcanic area which has never experienced unrest episodes in the modern era of instrumental volcanology. |
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s41598-020-79636-w (2).pdf | 10.9 MB | Adobe PDF | View/Open |
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