This paper – focussed on the province of Naples, where many municipalities with a huge demographic and
building density are subject to high volcanic risk owing to the presence of the Campi Flegrei (Phlegrean
Fields) caldera and the Somma-Vesuvius complex – highlights the methodological-applicative steps leading
to the setting up of a multiphase procedure for landscape reconstruction and their evolution analysis.
From the operational point of view, the research led to the: (1) digitalisation, georeferencing and comparison
of cartographies of different periods of time and recent satellite images; (2) elaboration and publication
of a multilayer Story Map; (3) accurate vectorisation of the data of the buildings, for each period of time
considered, and the use of kernel density in 2D and 3D; (4) application of the extrusion techniques to the
physical aspects and anthropic structures; (5) production of 4D animations and film clips for each period of
time considered. A procedure is thus tested made up of preparatory sequences, leading to a GIS modelling
aimed at highlighting and quantifying significant problem areas and high exposure situations and at reconstructing
the phases which in time have brought about an intense and widespread growth process of the artificial
surfaces, considerably altering the features of the landscape and noticeably showing up the risk values.
In a context characterised by land use conflicts and anomalous conditions of anthropic congestion, a
diagnostic approach through images in 2D, 3D and 4D is used, with the aim to support the prevention and
planning of emergencies, process damage scenarios and identify the main intervention orders, raise awareness
and educate to risk, making an impact on the collective imagination through the enhancement of specific
geotechnological functionalities of great didactic interest