Loss Modeling for 2017 Sarpol-e Zahab Earthquake

Document Type : Risk Management

Authors

1 International Institute of Earthquake Engineering and Seismology (IIEES), Tehran

2 International Institute of Earthquake Engineering and Seismology (IIEES), Tehran

Abstract

The November 12, 2017 Sarpol-e Zahab earthquake (Mw 7.3) occurred at 18:18 GMT (21:48 local time) and affected vastly the western part of Iran especially the Kermanshah province. The death toll was at least 620, the total number of injured people just the day after the earthquake was 5346 and around 70000 people were left homeless. This study aims to estimate the distribution of physical damages to the building stock using our domestic model and to calculate and validate the associated casualties under Sarpol-e Zahab earthquake event using a global model with some modifications. This region has been chosen because it has suffered major losses due to the recorded high PGA value of 684 gal and also due to the fact that some adequate field surveys and documentations were completed for this event. Since accurate building distribution maps are not available or accessible, to develop a spatial building database, a dasymetric mapping technique has been employed by merging a grid world population distribution map and the national census data. OpenQuake platform is utilized to simulate the ground motion field and to assess the physical damages and human loss. The results were compared with the actual observed data and showed relatively a proper match.

Keywords

References

Iranian Seismological Center (IRSC) (2017) Magnitude 7.3, Kermanshah Province 2017. Available from: http://irsc.ut.ac.ir/newsview.php?&eventid=125729&network=earth_ismc__.
USGS (2018) M 7.3 - 29 km S of Halabjah, Iraq 2017. Available from: https://earthquake.usgs.gov/earthquakes/eventpage/us2000bmcg#moment-tensor.
Tatar, M., Ghaemaghamian,M., Yamini-Fard, F., Hesami-Azar,K.,Ansari,A., and Firoozi, E. (2018) 2017 Sarpol-e Zahab Earthquake Report - Seismology Aspects. IIEES.
Road Housing & Urban Development Research Center (2017) Sarpol-e Zahab. Available from: http://smd.bhrc.ac.ir/Portal/fa/BigQuakes/Details/125.
GEM (2013) Earthquake Model of the Middle East Region (EMME) WP4: Seismic Risk Assessment.
Mansouri, B., Kiani, A., and Amini-Hosseini, K. (2014) A Platform for earthquake risk assessment in Iran case studies: Tehran scenarios and Ahar-Varzeghan earthquake. Journal of Seismology and Earthquake Engineering, 16(1), 51-69.
Coburn, A.W., Spence, R.J., and Pomonis, A. (1992) Factors determining human casualty levels in earthquakes: mortality prediction in building collapse. Proceedings of the First International Forum on Earthquake Related Casualties, Madrid, Spain.
United Nations Institute for Training and Research. Available from: www.UNITAR.org.
Google Crisis Map, Iran-Iraq Earthquake.
Seymoradi, H. (2018) Debris Monitoring Field Supervisor of Housing Foundation of Islamic Revolution, Personal Communication.
Hoseini Hashemi, B., Mansouri, B., Kalantari, A., and Sarvghad-Moghadam, A. (2018) 2017 Sarpol-e Zahab Earthquake Report-Structures and Life Lines. IIEES.
Risk Management Solutions (RMS) (2015) What is Catastrophe Modeling? [cited 2018; Available from: http://www.rms.com/blog/2015/06/22/what-is-catastrophe-modeling/.
Allen, T.I. and Wald, D.J. (2009) On the use of high-resolution topographic data as a proxy for seismic site conditions (VS30). Bulletin of the Seismological Society of America , 99(2A), 935-943.
Worden, C.B., Wald, D.J., Sanborn, J., and Thompson,E.M. (2015) Development of an open-source hybrid global VS30 model. Seismological Society of America Annual Meeting. Pasadena, California.
Akkar, S., Sandikkaya, M., and Bommer, J. (2014) Empirical ground-motion models for point-and extended-source crustal earthquake scenarios in Europe and the Middle East. Bulletin of Earthquake Engineering, 12(1), 359-387.
Campbell, K.W. and Bozorgnia, Y. (2008) NGA ground motion model for the geometric mean horizontal component of PGA, PGV, PGD and 5% damped linear elastic response spectra for periods ranging from 0.01 to 10 s. Earthquake
Spectra, 24(1), 139-171.
Chiou, B.S.-J. and Youngs, R.R. (2014) Update of the Chiou and Youngs NGA model for the average horizontal component of peak ground motion and response spectra. Ear thquake Spectra, 30(3), 1117-1153.
Akkar, S. and Cagnan, Z. (2010)Alocal groundmotion predictive model for Turkey, and its comparison with other regional and global ground-motion models. Bulletin of the Seismological Society of America, 100(6), 2978-2995.
Wells, D.L. and Coppersmith, K.J. (1994) New empirical relationships among magnitude, rupture length, rupture width, rupture area, and surface displacement. Bulletin of the Seismological Society of America, 84(4), 974-1002.
Oak Ridge National Laboratory, http://web.ornl.gov/sci/landscan.
Mansouri, B. and Amini-Hosseini, K. (2012) Development of residential building stock and population databases and modeling the residential occupancy rate for Iran. Natural Hazards Review, 15(1), 88-94.

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