Correlation between the Values of b and DC for the Different Regions in the Western Anatolia

The b-value and fractal dimension Dc calculated for different regions and to investigate relation between b-value and Dc value in the Western Anatolian (WA). The whole examined area is divided into 15 seismic regions based on their seismotectonic regime. The data used in this work was taken from different sources and catalogues. The technique of maximum likelihood method is applied to evaluate the b-value. Dc value is estimated using the correlation dimension. The b values change between 0.71 and 1.02. The values smaller than 0.80 are computed in regions of 10 and 12 which are related the Aegean Arc. The higher values are found in the regions 2 and 7 covering Akhisar and Karova-Milas and Muğla-Yatağan Fault zones. Dc values change between 1.69 and 2.27. The higher values of Dc are calculated in regions of 1, 15, 14, 10, 4 and 5 related different tectonic mechanisms. The smaller Dc values are computed in regions of 13, 7 and 6. The correlation between b-value and Dc value is determined with 95% confidence limit. We obtained negative relation between b and Dc values for Western Anatolia. Using the least squares method, we obtained the regression function of the first order DC= 2.46-0.6b.