Spatial analysis of the vulnerability population settlements Against Earthquake (Case study: township Dena)

One of the natural hazards that threaten our country's many world cities, including the earthquakes. The city Dena Given the existence of active faults, seismic areas, lacks of standards, poor physical development, and so this is no exception. The aim of this study Dena township spatial zoning of seismic hazard identification and urban settlements located in areas with a high-risk earthquake zone. The results show that 11/79 percent of 124/33 square kilometers township Dena has a high seismic risk of the entire city. 27/40 percent to 288/83 square kilometers is a risk of high seismicity. The results showed those 411/23 square kilometers, equivalent to 32 percent of the city Dena have a low seismic risk. According to the results, Pataveh in terms of the risk of earthquakes in the seismic risk is relatively low, medium, and hard disks in terms of seismic risk are relatively moderate and high and areas around the city are a very high seismic risk. Also, 17/12 percent From villages Dena township are In high-risk zones, 97/33 percent, In the medium risk zone, 25/35 percent In areas with low risk, As well as 29 villages, Equivalent to 58/18% of rural settlements and villages In the earthquake zone, with no risk. The highest area of hard disks in the high and very high-risk zone with an area of 215 square kilometers and the largest area of high seismic risk is in the range high which is equivalent to 278 square kilometers. Strategic review of the role of the ruler showed strength with weight matrix 204/0 in the first quarter and ST-weight strategy is 0/203.