Macrozonation of Seismic Transient Ground Displacement and Permanent Ground Deformation of Iran

Abstract. Iran is located on the Alpide earthquake belt, in the active collision zone between the Eurasian and Arabian plates. This issue makes Iran a country that suffers from geotechnical seismic hazards associated with frequent destructive earthquakes. Also, according to the rapid growth of population and demands for construction lifelines, the risk assessment studies which should be carried out in order to reduce the probable damages is necessary. The most important destructive effects of earthquakes on lifelines are transient ground displacements and permanent ground deformations. The availability of the map of the displacements caused by liquefaction, landslide, and surface fault rupture can be a useful reference for researchers and engineers who want to carry out a risk assessment project for each specific region of the country. In this study, the mentioned precise maps by using a considerable number of GIS-based analyses and by employing HAZUS methodology, are produced and presented. It is important to note that a required accuracy for risk assessment is approximately around the macro scale. So, in order to produce a suitable map for risk assessment goals, in terms of accuracy, the GIS-based analyses are employed to mapping all spread of Iran.