Fractal Dimension and b-value of Earthquakes in Mongolia and Its Surrounding Area

Fractal(correlation)dimension and b-value are determined from seismic catalog recorded in Mongolia and its surrounding area.The spatial correlation of 1.56is indicative of more or less clustered events in the region,while a b-value of 0.962implies a highly active seismic region.A detailed study of the frequency-magnitude distribution and fractal dimension as a function of depth is also made.The results suggest structural variability at different depth levels in the Mongolia seismic zone that reflects highly heterogeneous and differential stress distribution in the region. Our result also shows that positive is the relationship between the b-value of the GutenbergRichter relation and the fractal dimension Dof earthquakes in Mongolia region.