Clustering of damage variables for masonry buildings measured after L’Aquila earthquake

The vulnerability of masonry buildings, and especially of the old town centers, represents a particularly important problem in the management of seismic emergency. This work is focused on the analysis of data related to the damage observed on the buildings after the L'Aquila earthquake of 2009. In order to identify the possible types of multiple damages this work uses an approach based on the classification damage considered as statistical variable.