Fig. 11
From: Multiple natural hazards at volcanic islands: a review for the Ischia volcano (Italy)
Knowledge of seismic hazard: a record of observed intensities observed in Casamicciola (N of Ischia), as reported in the DBMI catalogue (modified from Locati et al. 2016); b isoseismic intensities for the 1883 event, adopting the MCS scale (modified from Luongo et al. 2006); c qualitative risk map elaborated in Sbrana and Toccaceli (2011), with a qualitative scale proportional to the percentage of collapsed buildings expected in case on future earthquakes (A - high: > 75% of collapsed buildings; B - medium-high, about 50% of collapsed buildings; C - intermediate, rare collapses and severe damages in about 25% of buildings; D – low: diffuse damages; modified from Sbrana and Toccaceli 2011)