GNGTS 2023 - Atti del 41° Convegno Nazionale

Session 2.1 - POSTER GNGTS 2023 Results from 2D simulations of the seismic response analysis at San Salvador (El Salvador) urban center C. Faraone 1 , S. Caravaggio 1 , L. A. Castillo Ramos 1,2 , R. Torres 3 , L. Mixco 3 , L. Menjivar 3 , M. L. Rainone 4 , G. Vessia 1 1 University “G. d’Annunzio” of Chieti-Pescara, Department of Engineering and Geology (INGEO), Chieti, Italy 2 University of El Salvador (UES), Faculty of Natural and Mathematical Sciences, San Salvador, El Salvador 3 Observatorio de Amenazas y Recursos Naturales, Ministerio de Medio Ambiente y Recursos Naturales (MARN) de El Salvador 4 University “G. d’Annunzio” of Chieti-Pescara, Department of Psychological, Humanistic and Territorial Sciences (DISPUTER), Chieti, Italy Introduction In this contribution, we illustrate the results of an ongoing study on the evaluation of the Local Seismic Response (LSR) at the Metropolitan Area of San Salvador (MASS), the capital of El Salvador. The city of San Salvador is located between the San Salvador volcano and the Ilopango caldera, in a sub-flat area called "Valle de las Hamacas" (Valley of the Hammocks). In this area, the strong earthquakes of 13 January and 13 February 2001 (7.7 M w and 6.6 M w , respectively) generated heavy damages due to both amplifications and seismically-induced landslides. As part of the international cooperation project between Italy and El Salvador supported by the Italian Agency for Development Cooperation (AICS), the CASTES project (“ Establecer y desarrollar la carrera de Licenciatura en Ciencias de la Tierra con énfasis en Geología en la Universidad de El Salvador ” - https://castes.agronomia.ues.edu.sv/ ) has been implemented. It is focused on the assessment of the natural hazards in the territory of El Salvador. To this end, after collecting all the subsoil investigations and characterization data of the dynamic behavior of the volcanic soils and rocks in MASS, the LSR analyses have been performed along 2D sections. In this paper, we will discuss the results from one of the LSR simulations.