Geological, geotechnical and geophysical characteristics of the Tus Fault located North of Mashhad, North-eastern Iran

The NW-SE trending Tus fault is one of the active faults in the north-east of Iran. Geomorphologic evidences indicate that this fault is active and goes through Mashhad city from near Tus town. Since the population and number of pilgrims in this city are high, the study of the Tus fault is of great importance. Hence, we have carried out a new investigation to evaluate the hazardous potential of this fault. This study includes analysis of geomorphologic evidence (such as offset streams recognized in aerial photos and geological maps), geophysical, geodesy and geotechnical surveys