Determining the components of resilience with emphasis on environmental resilience in a possible earthquake in Tehran

Tehran metropolis is surrounded by 110 faults and 3 large and active faults and is one of the earthquake prone areas in the country. Therefore, it is necessary to study its resilience in the event of an earthquake. In recent years, the study of the necessity and importance of applying the principles of urban resilience and the factors affecting it in reducing risks in cities has attracted the attention of many experts. In this regard, the purpose of this study is to identify and determine the important and effective indicators on resilience in Tehran to deal with a possible earthquake crisis and determine the components affecting environmental resilience.

This research has been done through documentary studies and questionnaires. A total of 51 experts and researchers have participated in determining important indicators and sub-indicators influencing earthquake crisis management. Structural analysis is used to examine the effectiveness of the components.

The results showed that 7 main components and 39 subcomponents have a decisive role in managing the earthquake crisis in Tehran. The most important main component is institutional-managerial resilience with a weight of 7.03 and a factor load of 0.93 and environmental resource resilience with a factor load of 0.7 has a weight of 6 in earthquake crisis management.

The most important subcomponents include social capital, financial security, and resilience of vital arteries weighing 8.18, 8.12, and 8.04, respectively. The correlation of environmental resource resilience with institutional-managerial resilience, socio-cultural resources and physical-infrastructural resources was 0.788, 0.72 and 0.738, respectively, which indicates a high correlation coefficient. Therefore, strengthening the dimensions of social capital and paying attention to physical infrastructure and upgrading the management body in managing the environmental consequences of the earthquake crisis in Tehran are recommended