Volcanic risk prevention within shared availability of science and administration

Volcanic risk lives a composite soul when analysed by those who must prevent it or respond to the consequences it may bring for the population, rights, and activities on the ground. It is a question of establishing the point of convergence between administration and technical activity for the optimal implementation of a prevention system adapted to the changes, appropriate to the individual administrative systems on which the risk affects or may affect.Boundaries, assignments and responsibilities must be established to avoid escapes from events and systems that are unable to respond to unforeseen events in a timely and effective manner. The aim of this contribution is to study the possible systemic convergences and differences that the events presented in Italy.