Over the past ten years, it has been proposed that the western part of the Menderes Massif was strongly structurally-controlled by the Izmir-Balikesir transfer zone (IBTZ). Yamanlar volcano is a key area for understanding the deformation of Miocene volcanoes in western Turkey because of its progressive extensional tectonics. Structural analysis provides that this volcano has undergone the incremental tectonic controls in western Turkey since Early Miocene. The volcano experienced deformation and erosional processes associated with activity of intense tectonic regime that resulted in the dissection of the southern flank of the volcano mostly by NE-SW-striking oblique and strike-slip faults together with cross-cutting faults during and after Miocene period. The orientation of volcanic domes, dykes and intrusive bodies indicates successive and reactive tectonic phases that caused incremental complex movements of numerous fault blocks during the destruction area of the Yamanlar volcano.