Assessing building vulnerability to tsunami using the PTVA-3 model: A case study of Chabahar Bay, Iran

Shima Madani (), Saeedeh Khaleghi and Mahmood Reza Akbarpour Jannat
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Shima Madani: Iranian National Institute for Oceanography and Atmospheric Science
Saeedeh Khaleghi: Iranian National Institute for Oceanography and Atmospheric Science
Mahmood Reza Akbarpour Jannat: Iranian National Institute for Oceanography and Atmospheric Science

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2017, vol. 85, issue 1, No 16, 349-359

Abstract: Abstract Chabahar Bay, in southeastern Iran, lies at the north of the Gulf of Oman and close to the Makran Subduction Zone, which makes it a region that is susceptible to tsunamis. This bay has an increasingly important role in Iran’s international trade, and therefore the assessment of the regional vulnerability to the effects of a tsunami is vital. Based on both the details of historical events and the results of numerical modeling of the propagation pattern of a tsunami in this region, this study assessed the vulnerability of buildings within the Chabahar Bay region to a tsunami event. The Papathoma Tsunami Vulnerability Assessment (PTVA) model was used to calculate a relative vulnerability index (RVI) for the affected buildings based on their physical and structural characteristics. The results showed that in a postulated worst-case-scenario tsunami event in the Chabahar Bay area, approximately 60 % of the residential buildings would be affected, a level of damage that is categorized as “Average” in the RVI classification. Overall, the economic losses related to the damage of residential buildings due to a tsunami in the Chabahar Bay area are anticipated to be the equivalent of US$ 16.5 million.

Keywords: Tsunami; Papathoma tsunami vulnerability assessment (PTVA-3); Relative vulnerability index (RVI); Chabahar Bay; Makran subduction zone (MSZ); Iran (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1007/s11069-016-2567-7

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