Eartquake and Landsilde hazard zonation by network analysis (ANP)in Bagheran mountain (south of Birjand)

The purpose of zoning the risk of earthquakes and landslides is to divide the earth's surface into separate zones based on the actual degree of occurrence of these hazards.
In this research first map of landslides distribution in Bagheran Mountain was prepared by aerial photos, geological maps and field surveys. Then effective factors in both earthquake and landslide occurrence are identified, their class density and binary comparison were calculated, effective parameters will prioritize, then determine fuzzy membership degree of parameters by fuzzy logic and finally combined together. Zoning studies suggest that seismic Is acceleration factor has the highest weight in the occurrence of earthquakes in the region. After a combination of landslide and earthquake maps combination was showed respectively16, 35, 20, 19 and 10% of the area are at very high-risk class, high, medium, low and very low.