A Study on Vulnerability of Urban Neighborhoods to Earthquake

(Case Study: Farahzad Neighborhood, Tehran)

سروش بزازان لطفی ، محمود رحیمی

Soroush bazazan lotfi,Mahmoud rahimi

Iran is considered one of the most seismic countries in the world and its cities have been frequently damaged by this natural phenomenon. Tehran, as the first metropolis of the country, is no exception to this rule, but also due to its compactness, and given Tehran metropolis is located on three active faults (Mesha fault, North Tehran fault, Rey fault). If activated, Mesha fault, North Tehran fault, Rey fault will destroy 20%, 35% and 55% of the city, respectively. Farahzad neighborhood in northern Tehran is one of the most seismic parts of Tehran metropolis. Hence, the main objective of this study is to investigate the seismicity of the neighborhood in terms of the risk of earthquakes. For this purpose, descriptive analysis and GIS software and Euclidean distance analysis were used. The results of this study showed that 57 hectares of Farahzad (136 hectares) with a relative area of ​​41% are located in a zone with a high earthquake risk (less than 400 m to the fault line). The area with a high seismic risk (400 to 800 meters) covers an area of ​​39 hectares, 29 percent of the total neighborhood. Also, 20 hectares of total residential buildings (34 hectares) with a relative area of ​​over 58 percent are located in a zone with a high risk of earthquakes. 7.5 hectares equals 22% of the total residential use in a high-risk area in terms of earthquake.

Keywords: vulnerability, earthquake, crisis, Farahzad

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