Ebru Aydindag Bayrak, Pinar Kirci

Determination of the Fractal Dimension of the Active Fault Data along the East Anatolian Fault Zone

Abstract The current study has analyzed active fault data along the East Anatolian Fault Zone (EAFZ) applying both manual (classic) and modern versions of the box counting method. The EAFZ active fault dataset used for analysis was taken from the Geoscience Map Viewer and the Drawing Editor from the website of the General Directorate of Mineral Research and Exploration. The study covered an area stretching from Karlıova in the north to Kırıkhan in the south. The fractal analysis of the earthquake surface rupture and the Holocene fault data was performed. Fractal dimensions of the EAFZ active-fault data were calculated for 15 boxes and compared with correlation coefficient values. The calculated fractal dimension values were found to vary with the density of the active-fault data falling into the boxes. The maximum fractal dimension value D1 was determined for Karlıova and its surroundings, which can be associated with the fault density due to the branching geometry.

Doi https://doi.org/10.5200/baltica.2021.1.6

Keywords the box counting method; fractal geometry; fractal analysis; correlation coefficient; earthquake surface rupture

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