Abstract

QUINDE MARTINEZ, Pablo  and  REINOSO ANGULO, Eduardo. Seismic hazard assessment for Ecuador and design spectra proposed for the City of Cuenca. Ing. sísm [online]. 2016, n.94, pp.1-26. ISSN 0185-092X.

A seismic hazard study for Ecuador is presented in this paper. The lack of complete seismic catalogs or the little information available, makes necessary a probabilistic seismic hazard analysis to include the various uncertainties that arise in the calculation process. This methodology has been used in this work for the study of seismic hazard of Ecuador. The catalog must be sufficiently refined, homogeneous and complete, so that the seismic parameters of the different sources do not exhibit large deviations in the results. Different attenuation models are presented, since they are necessary to estimate the intensities at any point of interest. In this study, seismic hazard results such as hazard curves, uniform hazard spectra (EPU) and seismic hazard maps for different return periods are presented. As a case study, seismic design spectra for Cuenca are obtained, based on a previous site effects study conducted by the University of Cuenca in the year 2000.

Keywords : seismic hazard; seismic catalog; uniform hazard spectra; seismic hazard curves; design spectra; site effects.

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