In recent years, there has been an increasing interest in dip-slip faults because of some evidence around the world. For instance, the 1999 Chi-Chi earthquake in Taiwan, the 1999 Kocaeli earthquake in Turkey, the 2002 Central Alaska earthquake in the USA, and the 2004 Mid Niigata earthquake in Japan could happen anywhere and anytime. There are two important elements in soil which less considered in faulting cohesion and friction angles. These two elements have been shown as the most influential aspect of soil in different studies, such as slop. At the same time, it has not been considered in faulting. An experimental investigation was conducted to explore the effect of cohesion (C) and friction angles (𝜑) on normal and reverse faults, which are most comment faulting. The experimental model was designed in the 1g model. The results revealed more energy in reverse faults than in normal faults; hence, more tunnel displacements can be seen in reverse faults. The highest displacements have recorded 50% more displacements in reverse faults than normal faults. The results presented here may facilitate improvements in the many active fault rupture locations.
