Articles | Volume 10, issue 1
Nat. Hazards Earth Syst. Sci., 10, 25–39, 2010
https://doi.org/10.5194/nhess-10-25-2010
Nat. Hazards Earth Syst. Sci., 10, 25–39, 2010
https://doi.org/10.5194/nhess-10-25-2010

  12 Jan 2010

12 Jan 2010

Probabilistic seismic hazard assessment in Greece – Part 1: Engineering ground motion parameters

G-A. Tselentis and L. Danciu G-A. Tselentis and L. Danciu
  • University of Patras, Seismological Lab, Rio 265 00, Patras, Greece

Abstract. Seismic hazard assessment represents a basic tool for rational planning and designing in seismic prone areas. In the present study, a probabilistic seismic hazard assessment in terms of peak ground acceleration, peak ground velocity, Arias intensity and cumulative absolute velocity computed with a 0.05 g acceleration threshold, has been carried out for Greece. The output of the hazard computation produced probabilistic hazard maps for all the above parameters estimated for a fixed return period of 475 years. From these maps the estimated values are reported for 52 Greek municipalities. Additionally, we have obtained a set of probabilistic maps of engineering significance: a probabilistic macroseismic intensity map, depicting the Modified Mercalli Intensity scale obtained from the estimated peak ground velocity and a probabilistic seismic-landslide map based on a simplified conversion of the estimated Arias intensity and peak ground acceleration into Newmark's displacement.

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