One of the prominent examples of the surface deformations that have been formed without destructive earthquake failure since last 10-20 years in the west Anatolian extensional province, observed in Bolvadin settlement area located at the middle part of the Afyon-A/whir Graben. In this area, some linear surface deformations that starts on the southwestern side of the town and can be followed until the northwestern side have been observed since last 4 years. During the, field studies in Bolvadin area, progressive surface deformations such as surface faults and earth, fissures whose length varies between 300 meters and 2 kilometers and strike varies between N15 degrees E and N70 degrees E are mapped. The northernmost one of the surface deformations mapped in settlement area of Bolvadin have the characteristics of the southwestern continuation of Bolvadin Fault. Besides this, geologic and morphological analysis indicate that the southeastern block is a down-dropped block and vertical displacements along the deformation zone are varies between 10-40 cm. According to geodesic data, measured rates of vertical offset in the Bolvadin is 7.1 cm/year. In order to find out the effect of active tectonism on formation of surface deformations, further trench based palaeosismological studies are necessary
