Fig. 6

a Probabilistic isomass map for a 25% of occurrence of the 1–36 month Vulcanian scenario (accumulation after 36 months) visualised with hazard categories; b potential physical damage of roads, harbours and heliports obtained by combining Figs. 4a and 6a; c potential functional damage of roads, harbours and heliports obtained by combining Figs. 4b and 6a; d potential systemic damage obtained by combining Fig. 4c with Fig. 6a (see Appendix B for more details on the procedure to compile damage maps and Appendices C and D for the damage maps of the Vulcanian scenario after 6 months and the VEI 2 scenario)