Probabilistic Seismic Hazard Assessment of the Kermanshah-Sanandaj Region of Western Iran

Shabani, Elham; Mirzaei, Noorbakhsh

doi:10.1193/1.2431210

Cited by 18 publications

(17 citation statements)

References 22 publications

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“…Source 5.5 < M s < 6 6 < M s < 6.5 6.5 < M s < 7 7 < M s < 7.5 7.5 < M s < 8 background seismicity, small and moderate-sized earthquakes may occur in the defined area randomly (Shabani & Mirzaei, 2007). In this study, background earthquake values are defined as M s = 6 for Alborz-Azarbayejan and Kopehdagh provinces and M s = 5.5 for Central-East Iran province.…”

Section: Background Earthquake Considerationmentioning

confidence: 99%

“…Some of the regions for which seismic hazard analysis have been conducted are Tehran -the capital of Iran (Ghodrati Amiri et al, 2007), Shiraz (Ghodrati Amiri, Razeghi, RazavianAmrei, Alaee, & Rasouli, 2008), Arak (Ghodrati Amiri, 2010), Babol (Abdollahzadeh & Shahaky, 2011) and Kermanshah-Sanandaj (Shabani & Mirzaei, 2007). Gorgan -the centre of Golestan Province -is situated in the north-east of Iran with high seismic activity in Iranian Code of Practice for Seismic Resistant Design of Buildings, standard 2800 (Building and Housing Research Center, (BHRC), 2005).…”

Section: Introductionmentioning

confidence: 98%

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Modified probabilistic approach for seismic hazard zoning of Golestan region, Iran

Abdollahzadeh¹,

Khanmohammadi²,

Tajrishi³

2014

European Journal of Environmental and Civil Engineering

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In this article, seismic zoning maps of Golestan based on modified methodology of probabilistic seismic hazard analysis have been prepared. For this purpose, first, major seismotectonic provinces of Iran surrounding the study region are delineated and seismicity parameters are evaluated for each province. By determining the main active faults of the region and preparing the earthquake catalog containing 19 historical events and 270 instrumental events, 25 potential seismic sources are modelled as area sources in the region. In order to properly reflect the inhomogeneity of seismicity in time and space, and to avoid underestimation of potential hazard of large magnitude earthquakes, the annual mean occurrence rate of earthquakes in each seismotectonic province should be allocated to each magnitude interval in the corresponding potential seismic sources, using the spatial distribution function. In this research, different kinds of seismological, tectonic and geophysical data are used to indicate the possible future earthquake activities in the interest region, providing basis for evaluation of spatial distribution function. Seismic hazard assessment is carried out by considering a universal attenuation relationship and using the SEISRISKIII computer program for the area in a radius of 200 km from centre of Gorgan (the centre of Golestan province). The study region is divided into a series of grid points and seismic hazard analysis for every grid point is carried out using characteristics of seismic activity in seismotectonic provinces and potential seismic sources. Horizontal Peak Ground Acceleration (PGA) for different seismic hazard levels is evaluated by modified probabilistic estimation. Finally, seismic hazard zoning maps of Golestan for 10% Probability of exceedance (PE) and 2% PE in 50 years and for three types of the site soil are prepared and compared with the seismic hazard macrozonation of Iran based on standard 2800.

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Section: Background Earthquake Considerationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Modified probabilistic approach for seismic hazard zoning of Golestan region, Iran

Abdollahzadeh¹,

Khanmohammadi²,

Tajrishi³

2014

European Journal of Environmental and Civil Engineering

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“…Sarpol Zahab was the largest settlement near the epicenter in which the majority of deaths and damage occurred. According to a seismic hazard assessment of the Kermanshah-Sanandaj region of western Iran [3,4], the recent earthquake could have occurred in the most active segments of the Zagros Main Recent Fault.…”

Section: Introductionmentioning

confidence: 99%

Lessons learned from the Ezgeleh–Sarpol Zahab earthquake of November 2017: status of damage and disposal of disaster waste

Saffarzadeh

Shimaoka

Nakayama

et al. 2019

Waste Dispos. Sustain. Energy

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A massive earthquake of magnitude M w 7.3 shook Kermanshah Province in Western Iran along the Iraqi border on November 12, 2017. The epicenter of the earthquake was approximately 10 km southwest of Ezgeleh Town in Kermanshah Province. Field observations almost 4 months after the disaster indicated that the earthquake had caused tremendous damage to most structures in both urban and rural areas, and left an enormous amount of disaster waste. To investigate the status of the damage and disposal of the disaster waste, remote sensing was conducted using an unmanned aerial vehicle (drone). Through the capture of low-altitude images by drone and the generation of 3D models, the quantity of debris accumulated in a waste disposal facility near Sarpol Zahab was estimated at approximately 480,000 m 3 . A compositional analysis of the disaster waste was performed using an imaging technique. This revealed that the disaster waste was largely composed of concrete (39.6%), hollow brick (35.4%), and gypsum (21.2%) in the urban area, whereas soil was the dominant component (77.4%) in the rural area. The damage caused to most buildings was essentially due to their non-standard construction. The management of debris from the damaged buildings was a critical issue for the authorities, and the lack of preparedness was a serious drawback that consumed an enormous amount of time, budget, and workforce. A practical post-disaster preparedness plan would help the decision-makers and the public to manage the otherwise overwhelming nature of the post-disaster conditions in a more reasonable manner.

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“…In this study, the modified methodology of PSHA is applied. Three major steps of modified method are (Shabani and Mirzaei, 2007;Kijko, 2012):…”

Section: Probabilistic Seismic Hazard Analysismentioning

confidence: 99%

Probabilistic Seismic Hazard Deaggregation for Karaj City (Iran)

Jarahi¹

2016

American Journal of Engineering and Applied Sciences

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Abstract:In this study the results of PSHA deaggregation for 5%-damped 0.2, 0.5, 2 and 4 s spectral accelerations, corresponding to Mean Return Periods (MRPs) of 50 and 475 yr for Karaj city was presented. The aim of this paper is to quantify the dominant events that have the most contribution on ground-motion exceedance from the above mentioned hazard levels. The scenario earthquakes are characterized by bins of Magnitude (M) and source-to-site distance (R). The results reveal that for Karaj city, the hazard is mainly controlled by near active fault.

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Probabilistic Seismic Hazard Assessment of the Kermanshah-Sanandaj Region of Western Iran

Cited by 18 publications

References 22 publications

Modified probabilistic approach for seismic hazard zoning of Golestan region, Iran

Modified probabilistic approach for seismic hazard zoning of Golestan region, Iran

Lessons learned from the Ezgeleh–Sarpol Zahab earthquake of November 2017: status of damage and disposal of disaster waste

Probabilistic Seismic Hazard Deaggregation for Karaj City (Iran)

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