Rockfall susceptibility map for Athinios port, Santorini Island, Greece

Abstract: This article analyzes rockfall susceptibility in the steep caldera slopes upstream of Athinios port, Santorini Island, Greece. The study area is situated in the internal rim of a submarine caldera where the most important problem that is recorded is the frequent rockfalls that not only cause damages to roads and vehicles but also pose a threat to people that are transported or located on the port. As a result, a methodology which combines information relatively to surficial and engineering geology, geomorphological processes, and structural analysis was adopted. The methodology incorporates evenly a maximum runout map generated by means of reach probability of rock block analysis, using the empirical model of “reach angle”. Additionally volumes of rockfall events categorized and presented through a map to assist the compilation of rockfall susceptibility map which allows us to identify areas and human activities exposed to these incidents and set up several protection meters. [Copyright &y& Elsevier]