Numerical modeling and hazard of a cliff in anthropic and historical contexts

The paper deals with a numerical modelling applied for the evaluation of the static and dynamic stability of a limited rock shore strip located in Peschici, a small city along the Gargano promontory (Southern Italy), very important by a tourist and historical points of view.Thus a considerable effortwas spent to numerically evaluate both probable and just only potential rock landslides. The Gargano promontory is characterized by a wide spread of different land morphologies like cliffs, coves, bays. Thus, for the aim of this paper, Peschici’s cliff has been selected for which the highest geo hazard has been ascribed. The study has been carried out through firstly a geo-mechanical survey to recognize the discontinuity families, implemented by a terrestrial laser scanner survey, and after with a numerical modelling applying a 2D code (UDEC 6.0). The results allowed the identification of areas at most risk of collapse for the protection of the safety of the inhabitants.