Abstract :
In this study, a fractal approach is employed to analyze the seismic history of Fethiye and
Simav zones in the West of Turkey. In this scope, a database, including the set of earthquakes in two
seismogenic zones, is compiled. Applying fractal dimension and probability concepts, it is aimed to find out
the occurrence probability of earthquakes having magnitudes equal to or greater than a threshold level.
The results are analyzed in detail and relationships among the fractal dimension, threshold magnitude,
probability intercept, and critical time scale are presented. The analyses revealed that activities in the
Fethiye Zone are more frequent and continuous than those in the Simav Zone. As mentioned in previous
studies, the critical time scales at certain magnitude thresholds can be referred to as the lower limit of the
recurrence period of earthquakes in these zones.
