Segmentation of Shotori fault using structural, geomorphology, seismicity and fractaly analysis
Subject Areas :Keywords: Shotori fault zone, Fractal geometry Geomorphic, Fault segmentation Seismicity.,
Abstract :
Shotori active fault zone (in the northern end of Nayband fault) has a dextral strike-slip mechanism with a revers component. Landsat image studies show that this fault is uncontinuous and segmented. In this research, based on fault geometric discontinuity, two segments, were determined on both the northern (with trend of N40w) and southern segments (with trend of N20w). Both of them are reverse with a right lateral slip movement component. The southern segment is the most active segment, based on fractal earthquake and fractal fractures (Ds= 1/60, DN=1/73) and earthquakes (Ds=0/43, DN=0/68) morphotectonic¬ parameters such as river slope indicator (SLs=1703/27,SLN=1526/7), sinuosity river channel (SS=1/24,SN=1/27), the V ratio (Vs=0/7,VN=0/9) and structural and seismic data. The most frequent recorded earthquakes and the biggest registered earthquake with a magnitude of 7.4 on the Richter scale have taken place in the southern segment. This indicates a high potential of seismic activity on this segment of the Shotori fault.
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