Document Type : Original Article
Authors
1
Associate Professor of TectonicsÙˆ Department of Geology, Shahid Bahonar University of Kerman, Iran
2
M.Sc. Student, Department of Geology, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran
10.22077/jt.2025.9346.1202
Abstract
The study area is located within the Central Iran structural zone, in the northern part of Kerman Province. The active faults of the region, including the Lakarkuh, Ravar, Bahabad, Kuhbanan, and Nayband faults, have been responsible for several significant earthquakes. In this research, the kinematic characteristics of the faults, including horizontal displacement, vertical uplift, their mutual interactions, and the seismically hazardous zones were analyzed. Seismic hazard and fracture intensity maps were also prepared. The results indicate that the maximum horizontal ground acceleration in the region ranges between 0.53 g and 0.56 g. The expected earthquake magnitude for the main faults (Kuhbanan, Bahabad, Nayband, and Ravar) is estimated to be between Ms 6.7 and Ms 7.8. The estimated seismic velocity and displacement values range from 535 cm/s to 1645 cm/s, and from 7 cm to 27 cm, respectively. Based on the fracture intensity map, the northern termination of the Bahabad Fault, the central segments of the eastern Nayband and Ravar faults, and the southern parts of the Bahabad and Ravar faults exhibit the highest fracture intensities. According to the spatial correlation between peak ground acceleration and fracture intensity, these segments are proposed as the seismically high-risk zones of the study area.
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