Location

San Diego, California

Session Start Date

5-24-2010

Session End Date

5-29-2010

Abstract

This paper presents uniform seismic hazard spectra of Sanandaj city of Iran. Sanandaj is the administrative center of Kurdistan province, in which more than 500,000 people live in. A collected catalogue, containing both historical and instrumental events and covering the period from the 10th century BC to the year 2006, is used. Then seismic sources and The seismotectonic model of the considered region have been modeled within the radius of 200 km and recurrence relationship is established. After elimination of the aftershocks and foreshocks, the main earthquakes were taken into consideration to calculate the seismic parameters. For this purpose the method proposed by Kijko [2000] was employed considering uncertainty in magnitude and incomplete earthquake catalogue. Sanandaj and its vicinity has been meshed as an 8(vertical lines)* 10(horizontal lines) and the calculations were performed using Ambraseys and et al. [1996] attenuation relationship. These calculations have been performed by the Poisson distribution of four hazard levels. Seismic hazard assessment is then carried out for each grid point using SEISRISK ΙΙΙ [1987]. The evaluation of the probabilistic occurrence of earthquake for the specific area is shown by horizontal spectral acceleration maps with the probability of 2% and 10% occurrences in 50 years.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

Meeting Name

Fifth Conference

Publisher

Missouri University of Science and Technology

Publication Date

5-24-2010

Document Version

Final Version

Rights

© 2010 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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May 24th, 12:00 AM May 29th, 12:00 AM

Uniform Seismic Hazard Spectra of Sanandaj, Iran

San Diego, California

This paper presents uniform seismic hazard spectra of Sanandaj city of Iran. Sanandaj is the administrative center of Kurdistan province, in which more than 500,000 people live in. A collected catalogue, containing both historical and instrumental events and covering the period from the 10th century BC to the year 2006, is used. Then seismic sources and The seismotectonic model of the considered region have been modeled within the radius of 200 km and recurrence relationship is established. After elimination of the aftershocks and foreshocks, the main earthquakes were taken into consideration to calculate the seismic parameters. For this purpose the method proposed by Kijko [2000] was employed considering uncertainty in magnitude and incomplete earthquake catalogue. Sanandaj and its vicinity has been meshed as an 8(vertical lines)* 10(horizontal lines) and the calculations were performed using Ambraseys and et al. [1996] attenuation relationship. These calculations have been performed by the Poisson distribution of four hazard levels. Seismic hazard assessment is then carried out for each grid point using SEISRISK ΙΙΙ [1987]. The evaluation of the probabilistic occurrence of earthquake for the specific area is shown by horizontal spectral acceleration maps with the probability of 2% and 10% occurrences in 50 years.