Abstract: The Eastern Anatolian Fault Zone (EAFZ) is a significant neotectonic feature in Anatolia, characterized asan active intra-continental left-lateral strike-slip fault. The EAFZ comprises two distinct parts: the southern branch,referred to as the main branch, and the northern branch. This study examines the surface rupture near Çelikhan(Adıyaman) on the Erkenek Segment, which developed during the February 6, 2023 Pazarcık earthquake (Mw7.7), occurring along the southern branch of the EAFZ. The primary emphasis of this study centers on preliminary findings derived from thorough geological investigations conducted on the surface fault rupture. Additionally, novel insights in seismic activity associated with the Erkenek Segment were revealed for the first time through meticulous field studies. In the studies, the maximum left-lateral displacement measured in the Çelikhan section ofthe surface fracture was 3.25 meters, accompanied by a vertical slip of 50 centimeters. The magnitude of left-lateral displacement decreased and attenuated moving northeastward from Çelikhan. Based on kinematic analysis of slip data obtained from fault planes along the Erkenek segment, the deformation aligned with the segment`s geometryand occurred within a strike-slip tectonic regime influenced by compressional stress predominantly oriented in NESW and NNW-SSE directions.