Authors
Mario A Salgado-Gálvez, Mario Ordaz, Singh K Singh, Omar D Cardona, Eduardo Reinoso, Alejandro Aguado, Daniela Zuloaga, Benjamín Huerta, Gabriel Bernal
Publication date
2018/6
Journal
16th European Conference on Earthquake Engineering, Thessaloniki, Greece
Pages
1-12
Description
Several probabilistic seismic hazard analyses have been performed in most countries of the Latin America and Caribbean (LAC) region during the past 15 years but, most of them have been developed for specific needs of a single country. This work presents a complete, continuous, homogeneous and comprehensive PSHA that includes all the countries where seismic hazard is relevant in LAC region. A homogeneous earthquake catalogue was assembled and based on it, a regionalization of the subduction zone in the Pacific was developed. This data led to the definition of a set of sources which were later complemented by those associated to the intra-plate activity. For the last, since they are associated mostly to the transnational cordilleras, geometrical continuity along the political borders was ensured for all cases. PSHA was performed using CRISIS2015 computer program, a worldwide well-known and accepted tool. The main output of the study are intensity exceedance curves at several locations from where hazard maps for fixed return periods and different spectral ordinates are obtained. The results of this effort besides the academic and scientific remark are very useful for transnational seismic risk assessments where in case of using the existing models the discontinuities in the seismic hazard were to be also reflected in the risk results, mainly for portfolios located either close to the political borders or to portfolios comprising dwellings in more than one neighboring country.
Total citations
2019202020212022202313413
Scholar articles
MA Salgado-Gálvez, M Ordaz, SK Singh, OD Cardona… - 16th European Conference on Earthquake …, 2018