La peligrosidad sísmica y el factor de riesgo

Abstract

Earthquakes are among the natural hazards which cause the greater number of human victims as well as the greater economic losses. This paper reviews the seismic risk concept, the Spanish seismic hazard and the basic aspects of the Spanish (NCSE-02) and European (EN1998-1) standards. Some analytic relationships have been deduced between the importance factor of the Eurocode 8 (risk factor in the NCSE-02) and the mean return period, as well as between the exposure time and the probability of exceedance during this time of the chosen seismic intensity parameter. Some considerations have been made about the damage limitation requirement and the importance of addressing to it a more rigorously checking.