A Guerricchio

Analysis of the Rainfall Preceding the Activation of the Large Maierato Landslide in 2010

This work focuses on the impact of the antecedent rainfall as triggering factor of the large landslide occurred in Maierato (south Italy) on February 15, 2010. According to previous studies by Guerricchio et al. (Tecniche per la difesa dall’inquinamento – 31° Corso di aggiornamento, pp 661–706, 2010) the predisposing factor of the landslide is an ancient deep-seated gravitational slope deformation that significantly affected landforms, drainage networks and infiltration processes of the whole slope where Maierato is located. Here after a brief introduction of the landslide according to the aforementioned study, a hydrological analysis of the rainfall preceding the landslide is presented. The analysis aims at evaluating the exceptionality and some peculiar characters of rainfall, which may be considered among the triggering factors of the landslide.

Tectonic Stress as Possible Co-predisposing Factor for Landslides Along the Central Adriatic Coast of Italy

The central and southern Italian coast on Adriatic Sea is affected by several historically active large and deep-seated landslides. These during the latest decades involved important infrastructures, like the railway and the motorway along the coastline. These landslides were activated in overconsolidated silty clayey deposits of the foredeep domain. Here the position of the main landslides in relation to the position of the buried front of the Apennines is presented. This general early-stage analysis shows that there is an interesting correspondence between the main landslides and the advanced buried thrust of Apennine deposits. The work proposes some thoughts about this correspondence and the possible influence of tectonic tangential stresses as one of the predisposing factor in the activation of these landslides.