Writers : Taheri,Leila;Mirzaei,Nourbakhsh
Refference : The 23th Symposium on Geoscience;Tehran
Publishing Year : 1383

Abstract :
?Probabilistic seismic hazard assessment has been performed in eastern Iran (55º-60ºE, 32º-36ºN) and seismic zoning map of the region has been prepared. A total of 44 potential seismic source zones in the region delineated as area sources for seismic hazard assessment based on geological, seismological and geophysical information. Because of insufficient earthquake data in potential sources, concept of spatial distribution function has been used for evaluation of seismicity parameters in each potential seismic source. Using the Campbell (1997) attenuation relationship, dividing the region to grids into 0.1º distances (longitude and latitude) and the SeisRiskIII computer program seismic hazard assessment carried out for a grid of points considering the concept of background seismicity. Horizontal peak ground accelerations for 10% probability of exceedance in 50 years (475 years return period) and for 63% probability of exceedance in 50 years (50 years return period) are estimated for the grid points and seismic zoning maps of region have been prepared.
Subject List : Seismic