A MODEL FOR EARTHQUAKE CRISIS MANAGEMENT IN OLD URBANS (CASE STUDY: NAJAFABAD CITY)

The city of Najaf Abad has the history of 400 years, the oldest new city in Iran, and the second most important city in the Isfahan city complex. Which has been grown sevenfold over the past sixty years. It is located in the Sanandaj-Sirjan zone, which is considered the most restrained zone in Iran. According to studies, there is always a possibility of an earthquake occurring possibility in this zone. . The existence of important jet structures, the identification of active faults for the first time, and the recording of more than hundreds of earthquakes around this area indicates its risk . Recognizing and assessing the seismic risk of this city by means of location and spatial modeling of various environmental, physical, social and managerial components, is based on the risk reduction approach of the present research is considered as the goal. In this research, while explaining the concept of risk and vulnerability, using a variety of quantitative and qualitative parameters and based on the multi-criteria decision making approach in the form of spatial analysis, network analysis (ANP) and weight overlap, seismic risk aversion in Najaf Abad city is studied and analyzed. The results indicate that about 33% of the developed area of the city has a high risk of earthquake that covers the central area of the city and part of the city of Saleh Abad. Considering the distribution map of the city population (based on statistical domains of the population census of 2011) and its adaptation to the results, it is shown that in the total population of 51000 people (with a density of about 70-100 per hectare) in the zone The high risk area is located in the 5th district with a population of about 40,000 people in the six city districts of the city. Also, the area of Yazdanshahr in the southwest zone with the highest population density in the city is located in the medium-risk rising area.