Seismic Hazard Assessment of Tehran Based on Arias Intensity

In this paper probabilistic seismic hazard assessment of Tehran for Arias intensity parameter is done. Tehran is capital and most populated city of Iran. From economical, political and social points of view, Tehran is the most significant city of Iran. Since in the previous centuries, catastrophic e...

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Bibliographic Details
Published in:2008 Seismic Engineering Conference Commemorating the 1908 Messina and Reggio Calabria Earthquake Part One (AIP Conference Porceedings Volume 1020, Part 1) Part 1), 2008-01, Vol.1020 (1), p.270-276
Main Authors: Amiri, G Ghodrati, Mahmoodi, H, Amrei, S A Razavian
Format: Article
Language:English
Subjects:
ATTENUATION
EARTHQUAKES
GEOSCIENCES
HAZARDS
PROBABILISTIC ESTIMATION
ROCKS
RUPTURES
SEISMICITY
SEISMOLOGY
SOILS
TREES
URBAN AREAS
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Summary:In this paper probabilistic seismic hazard assessment of Tehran for Arias intensity parameter is done. Tehran is capital and most populated city of Iran. From economical, political and social points of view, Tehran is the most significant city of Iran. Since in the previous centuries, catastrophic earthquakes have occurred in Tehran and its vicinity, probabilistic seismic hazard assessment of this city for Arias intensity parameter is useful. Iso-intensity contour lines maps of Tehran on the basis of different attenuation relationships for different earthquake periods are plotted. Maps of iso-intensity points in the Tehran region are presented using proportional attenuation relationships for rock and soil beds for 2 hazard levels of 10% and 2% in 50 years. Seismicity parameters on the basis of historical and instrumental earthquakes for a time period that initiate from 4th century BC and ends in the present time are calculated using Tow methods. For calculation of seismicity parameters, the earthquake catalogue with a radius of 200 km around Tehran has been used. SEISRISKIII Software has been employed. Effects of different parameters such as seismicity parameters, length of fault rupture relationships and attenuation relationships are considered using Logic Tree.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.2963844