ABSTRACT:In order to reduce the damages caused by the landslides, it is very important to predict the landslide occurrences

and to determine the landslide susceptibility areas by the current methods in the literature. In this respect, it is aimed

to produce landslide susceptibility maps of Ulus district of Bartın where landslides develop in the same lithology.

The important point of the study is that Chebyshev theorem is tested for selected study area in this study and the

susceptibility map produced by this method is compared with the landslide susceptibility map produced by using data A total of 195 landslides were mapped in the study area and two different sampling strategies, Chebyshev’s theorem

and landslide mass were used in the determination of landslide and non-landslide areas. In this study, landslide

susceptibility analysis has been done for the study area by using topographic elevation, aspect, curvature and NDVI

parameters. In the susceptibility analysis using both sampling strategies, Frequency Ratio (FO) method, which is

frequently used in literature, was used and two different susceptibility maps were produced. The performance of the

susceptibility maps was evaluated according to Area Under Curve method (ROC-AUC) and the AUC values were

determined as 0.78 for Chebyshev theorem and 0.72 for the sampling technique according to the number of pixels in

the entire landslide mass, respectively. According to these values, both susceptibility maps were acceptable and the

performance of the susceptibility map produced by sampling with the Chebyshev theorem is relatively higher than

the other sampling method. This result shows that Chebyshev method used in the study is an alternative method that

can be used effectively in landslide susceptibility mapping studies and that the susceptibility map produced by this

method has a successful prediction capacity.