Abstract: The study area is located within the Suşehri-Gölova basin on eastern part of the North Anatolian FaultZone (NAFZ). Great devastating earthquakes have been occurred on this highly active seismic fault zonein near historical period. The last great earthquake causing loss of many life and properties was occurredon 27 December 1939 in Erzincan along the eastern part of the NAFZ. This earthquake has createdhundreds of kilometers surface rupture, and can also be traced in the study area. Significant information isobtained by early paleoseismological studies carried out especially on the middle and western parts of theNAFZ proving important data about earthquake return periods and magnitudes of seismic activity in theperiod. Paleoseismological studies on eastern part of the NAFZ are less than western part of the NAFZ.In this study, three trenches were excavated on the 1939 Erzincan earthquake surface rupture. Thesetrenches are located from west to east, in Eskibağ, Aşağıyeniköy and Aşağıtepecik villages. Eskibağtrench was excavated on a sag pond to the southeast of Sevindik and northeast of Eskibağ villages. AşağıTepecik trench was excavated on the same lineament to the northeast of Aşağıyeniköy where a clear faultmorphology is observed. The Aşağı Tepecik was excavated 2.5 km southeast of the Lake Sut. These trenchdata are significant because of showing data of large earthquakes repeated during Holocene times. Besidethe fact that 1939 surface rupture was observed, the earthquake ruptures formed before 1939 were alsoobserved on trench logs. It is showed that 1939 earthquake surface rupture follows older ruptures andreveals the existence of several different seismic activities prior to 1939 earthquake.