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Journal of Seismology

, Volume 18, Issue 2, pp 319–330 | Cite as

Scalar and vector probabilistic seismic hazard analysis: application for Algiers City

  • Gherboudj Faouzi
  • Laouami Nasser
Original Article

Abstract

This study deals with the application of probabilistic seismic hazard analysis (PSHA) for a rock site located in Algiers city. For this purpose, recent ground motion prediction equations developed in the world for similar sismotectonic context are used through logic tree in PSHA framework; the obtained results reflect clearly the high seismicity of the considered region. Moreover, deaggregation analysis is conducted to obtain the mean scenario in terms of magnitude and distance. In addition to the scalar-PSHA, a new method named vector-PSHA developed in recent years is performed in this study. Based on the multivariate probability theory, the software used in scalar approach is modified allowing the application of this approach for a real site in Algiers city with a vector of two and three parameters of intensity measure. The results are presented in terms of the joint annual rate of exceeding several thresholds such as PGA, PSA(T) of multiple vibration periods, peak ground velocity and Arias intensity and comparison between results of PSHA and V-PSHA is done.

Keywords

PSHA Vector-PSHA Intensity measure Deaggregation Algiers 

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  1. 1.National Earthquake Engineering Research Center (CGS)AlgiersAlgeria
  2. 2.Faculty of Civil EngineeringUniversity of Science and Technology Houari Boumediene (USTHB)AlgiersAlgeria

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