Assessment activity and can cause seismic Tabriz fault and the estimatied death toll in the City of Tabriz using indicators of Geomorphic, remote sensing and GIS technique

Tabriz City is located in the privacy of Tabriz active fault that this fault of the lower part of the Gmanabchay and Vrkshchay watershed is crossing in the north of the city, also. Given the importance of this issue, this research is trying to use the geomorphic indicators, remote sensing and GIS techniques to assessment activity and can cause seismic Tabriz fault and the estimatied death toll in the City of Tabriz. According to the results of visual interpretation of satellite data and field observations, evidence of fault in the Northeast Bluff, River diversion Ajichai, the pressure and the phenomenon of lens-shaped ridges is exposed along the fault of Tabriz in the northwest region, which represents activity. As a result, Drainage Basin Shape Ratio (2.2 and 1.8), Basin Asymmetry (39.7 and 23.2), Topographic Inversion Asymmetry (0.36 and 0.59), Hypsometric Integral (0.28 and 0.39), Sinusoidal Mountain Front (1.4 and 0.93), River Sinus (1.1 and 1.3), Valley Floor Width to Valley Height (1.08 and 1.2), Longitudinal Gradient is 1,202 and 318 respectively for Gmanabchay and Vrkshchay watershed respectively. Based of Relative Active Tectonics Index, Gmanabchay and Vrkshchay watershed with values (1.6 and 1.5) respectively has high tectonic movements. Results indices show Gmanabchay and Vrkshchay watershed morphology influence of Tabriz fault tectonic movements. Based on the results of seismic empirical models, Tabriz fault is the ability to create earthquakes above 6 on the Richter scale. Dangerous fault zones in Tabriz were not achieved in the current circumstances is not considered The issue with regard to young alluvial land and lack of full strength area can exacerbate the damage caused by the earthquake. Based on the results of Coburn model and to follow vulnerability analysis buildings, earthquake relief at night without cause severe human casualties. In this case, the largest number of casualties in the first scenario of approximately 264139 people (16 percent), the second scenario 327266 (20%) and the third scenario of 344689 people (21%) were estimated. Most casualties compared to other building materials brick buildings, buildings of brick, metal and wood, respectively, are in the next rank in terms of human casualties