Geomechanical analysis of the instability phenomena at Stromboli volcano

The Authors provide an insight into the mechanisms that caused failure phenomena in the subaerial and submerged slope of Stromboli volcano in 2002. Landslide geometry and deformations are described and then the results of laboratory investigations into the mechanical behaviour of the volcanoclastic material are presented. Experimental results contribute to explaining the evolution of instability processes towards failure in the submerged slope as well as the current evolution of the volcano flank. Finally, a 3D numerical model of the volcano flank is utilized to investigate the role of intruded magma in initiating instability henomena.