Assessment of a 475-year Scenario Earthquake Loss for Residential Buildings in District 2 of Tehran Municipality, Iran

Document Type : Research Article


1 Civil Engineering, Faculty of Technical & Engineering, Imam Khomeini International University, Qazvin, Iran

2 Assistant Professor, Earthquake Risk Management Research Center, International Institute of Earthquake Engineering and Seismology (IIEES), Tehran, Iran

3 Technical and Vocational University (TVU), Tehran, Iran


Tehran, the capital city of Iran, is a dense city with a more than 12 million dynamic population. The city is located next to the seismically active zone of the Alborz Mountains, with many active faults surrounding it. Because of Tehran's significant economic and political function at the national level, earthquakes in this city or its vicinity could largely affect the whole country. Together, these factors can explain how important the identification and assessment of seismic risk in this city can be. In this study, an OpenQuake-engine has been employed to quantify the earthquake risk of one of the districts of Tehran. Initially, a probabilistic hazard assessment was carried out for Tehran; then, after disaggregating the result of a 475-year PSHA, the main contributing earthquake scenario was determined as the hazard input. In addition, an exposure model was developed for the residential buildings of the study area, indicating building typology and locations. Further, a set of fragility and vulnerability functions that are consistent with the exposure model was selected from past studies. Finally, the seismic loss for residential buildings in district 2 of Tehran municipality was assessed in the event of the 475-year hazard scenario. The results show the intensity and spatial distribution of damages and losses in various subdivisions of the study area. Such analysis can provide essential information for disaster management decision-makers to prepare for possible future events.


Main Subjects

[1]      H. Amini Hosseini, K., Hosseini, M., Jafari, M.K., “Recognition of Vulnerable Urban Fabrics in Earthquake Zones: A Case Study of the Tehran,” Journal of Seismology and Earthquake Engineering, vol. 10, no. 4, p. 2015, 2009.
[2]      H. Motamed, B. Khazai, M. Ghafory-Ashtiany, and K. Amini-Hosseini, “An automated model for optimizing budget allocation in earthquake mitigation scenarios,” Natural Hazards, vol. 70, no. 1, pp. 51–68, 2014.
[3]      M. R. C. MunichRe, “NatCatSERVICE Analysis Tool,” Natural Loss Events 1980-2018, 2018. [Online]. Available: [Accessed: 06-Apr-2022].
[4]      S. R. SwissRe, “Swiss Reinsurance Company, SwissRe,” Natural Catastrophes, 2018. [Online]. Available: [Accessed: 06-Apr-2022].
[5]      SCI, “SCI (2016) Statistical Centre of Iran,” Tehran, SCI, formerly, the plan and budget organization of the imperial government of Iran, statistical Centre, 2016.
[6]      M. Berberian, “Patterns of historical earthquake ruptures on the Iranian plateau,” Developments in Earth Surface Processes, vol. 17, no. 1, pp. 439–518, 1999.
[7]      G. Ghodrati Amiri, R. Μotammed, and H. Rabet Eshaghi, “Seismic hazard assessment of metropolitan Tehran Iran,” J Earthq Eng, vol. 7, 2003.
[8]      A. A. Nowroozi, “Probability of peak ground horizontal and peak ground vertical accelerations at Tehran and surrounding areas,” Pure and Applied Geophysics, vol. 167, no. 12, pp. 1459–1474, 2010.
[9]      M. Ghafory-Ashtiani, “Rescue operation and reconstruction of recent earthquakes in Iran,” Disaster Prevention and Management, vol. Volume 8, no. Number 1 · 1999, pp. 5–20, 1999.
[10]    M. Zare, “Seismic hazard Analysis in Tehran quadrangle,” International Institute of Seismology and Earthquake Engineering, 2005.
[11]    N. Mirzaei, Seismic hazard assessment and zoning of Tehran region. Tehran: Tadbir Publication, 2006.
[12]    H. Zafarani, A. Noorzad, A. Ansari, and K. Bargi, “Stochastic modeling of Iranian earthquakes and estimation of ground motion for future earthquakes in Greater Tehran,” Soil Dynamics and Earthquake Engineering, vol. 29, no. 4, pp. 722–741, 2009.
[13]    J. P. Wang and H. Taheri, “Seismic hazard assessment of the Tehran region,” Natural Hazards Review, vol. 15, no. 2, pp. 121–127, 2014.
[14]    M. Bastami and M. Kowsari, “Seismicity and seismic hazard assessment for greater Tehran region using Gumbel first asymptotic distribution,” Structural Engineering and Mechanics, vol. 49, no. 3, pp. 355–372, 2014.
[15]    E. Boostan, N. Tahernia, and A. Shafiee, “Fuzzy—probabilistic seismic hazard assessment, case study: Tehran region, Iran,” Natural Hazards, vol. 77, no. 2, pp. 525–541, 2015.
[16]    E. Firuzi, A. Ansari, K. Amini Hosseini, and E. karkooti, “Developing a customized system for generating near real-time ground motion ShakeMap of Iran’s earthquakes,” Journal of Earthquake Engineering, vol. 00, no. 00, pp. 1–23, 2020.
[17]    M. Kowsari and S. Ghasemi, “A backbone probabilistic seismic hazard analysis for the North Tehran Fault scenario,” Soil Dynamics and Earthquake Engineering, vol. 144, no. February, p. 106672, 2021.
[18]    B. Mansouri, A. Kiani, and K. Amini-Hosseini, “A Platform for earthquake risk assessment in Iran case studies: Tehran scenarios and Ahar-Varzeghan earthquake,” Journal of Seismology and Earthquake Engineering, vol. 16, no. 1, pp. 51–69, 2014.
[19]    M. Sadeghi, M. Ghafory-Ashtiany, and N. Pakdel-Lahiji, “Developing seismic vulnerability curves for typical Iranian buildings,” Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability, vol. 229, no. 6, pp. 627–640, 2015.
[20]    H. Motamed, A. Calderon, V. Silva, and C. Costa, “Development of a probabilistic earthquake loss model for Iran,” Bulletin of Earthquake Engineering, vol. 17, no. 4, pp. 1795–1823, 2019.
[21]    M. Fallah Tafti, K. Amini Hosseini, and B. Mansouri, “Generation of new fragility curves for common types of buildings in Iran,” Bulletin of Earthquake Engineering, vol. 18, no. 7, pp. 3079–3099, 2020.
[22]    B. Tavakoli and S. Tavakoli, “Estimating the vulnerability and loss functions of residential buildings,” Natural Hazards, vol. 7, no. 2, pp. 155–171, 1993.
[23]    Japan International Cooperation Agency (JICA), “The study on micro zoning of the Greater Tehran Area in the I. R. of Iran, final report, Tehran, Iran,” no. November 2000.
[24]    F. Ranjbaran and M. Hosseini, “Analytical Fragility Curves of Confined Masonry Buildings,” 15 World Conference of Earthquake Engineering, 2012.
[25]    H. Kazemi, M. Ghafory-Ashtiany, and A. Azarbakht, “Effect of epsilon-based record selection on fragility curves of typical irregular steel frames with concrete shear walls in Mashhad city,” International Journal of Advanced Structural Engineering, vol. 5, no. 1, pp. 1–11, 2013.
[26]    N. Pakdel-lahiji, S. Hochrainer-Stigler, M. Ghafory-Ashtiani, and M. Sadeghi, “Consequences of Financial Vulnerability and Insurance Loading for the Affordability of Earthquake Insurance Systems : Evidence from Iran Consequences of Financial Vulnerability and Insurance Loading for the Affordability of Earthquake Insurance Systems :” vol. 40, no. 2, pp. 295–315, 2015.
[27]    J. K. Gardner and L. Knopoff, “Bulletin of the Seismological Society of America IS THE SEQUENCE OF EARTHQUAKES IN SOUTHERN CALIFORNIA, WITH AFTERSHOCKS REMOVED, POISSONIAN?,” Bulletin of the Seismological Society of America, vol. 64, no. 5, pp. 1363–1367, 1974.
[28]    RA Uhrhammer, “Characteristics of northern and central California seismicity,” Earthquake Notes, vol. 1, p. 21, 1986.
[29]    S. Wiemer and M. Wyss, “Minimum magnitude of completeness in earthquake catalogs: Examples from Alaska, the Western United States, and Japan,” Bulletin of the Seismological Society of America, vol. 90, no. 4, pp. 859–869, 2000.
[30]    C. F. Gutenberg, B.; Richter, “Frequency of earthquakes in California,” Bull. Seismol. Soc. Am, vol. 34, pp. 185–188, 1944.
[31]    A. Kijko, “STATISTICAL ESTIMATION OF MAXIMUM REGIONAL EARTHQUAKE MAGNITUDE m max,” Published by Elsevier Science 12th EuropeanConference on Earthquake Engineering, no. 1967, pp. 1–22, 2000.
[32]    E. Firuzi, A. Ansari, K. Amini Hosseini, and M. Rashidabadi, “Probabilistic earthquake loss model for residential buildings in Tehran, Iran to quantify annualized earthquake loss,” Bulletin of Earthquake Engineering, vol. 17, no. 5. pp. 2383–2406, 2019.
[33]    J. P. Stewart, M. Eerie, J. Douglas, and M. Javanbarg, “Selection of Ground Motion Prediction Equations for the Global Earthquake Model,” Earthquake Spectra, 2015.
[34]    JICA, “The comprehensive master plan study on urban seismic disaster prevention and management for the greater Tehran area in the Islamic Republic of Iran. The final main report,” 2004.
[35]    FEMA, “Hazus –MH 2.1,” Washington, D.C., 1999.
[36]    Directive No. 30129/1999/160 “how to calculate and get the costs of monitoring, collecting, transporting, and disposal of each m3 of construction and demolition waste.” Iran, 2015.