Composite methodology for tsunami vulnerability assessment based on the numerical simulation of 1755 Lisbon tsunami-application on two Portuguese coastal areas

Different methodologies for tsunami risk assessment have been developed, namely for reconstitution of previous hazardous events and for planning awareness and alert systems and civil protection resources. The vulnerability analysis is frequently based on simulations using precursor impact damages and on modeling hydrodynamic floods. Our innovative approach is applied on two distinctive coastal Atlantic areas, with urban and rural/natural context from Setubal and Figueira da Foz counties. We presented a deepened methodology for assessing vulnerability to tsunamis in its social, structural and morphological component that results of new inputs that distinguish this from previous studies. The tsunami inundated areas were obtained from tsunami numerical modeling. The morphological and structural analysis is based on field work element collection using a matrix with 18 parameters. For the social impacts evaluation, a multi-components analysis is performed, using 47 socio-economics variables, expressing the expected impacts. A composite territorial index of vulnerability is presented and mapped.