Seismic Hazard Assessment of Minab City using the Preliminary Gutenberg-Richter Method
Fatemeh Salari1
- Department of Geology, Shahid Bahonar University of Kerman, Kerman 7616913439, Iran
Iran is located on a seismically active belt, making earthquakes a frequent occurrence. Given the country's high seismicity and the potential for destructive earthquakes, understanding Iran’s seismic characteristics is crucial. Therefore, studying and assessing the seismic hazard in different regions of Iran is essential. This research evaluates the seismic hazard of Minab city using statistical-probabilistic and analytical methods. In the probabilistic approach, earthquake data from the 20th century within a 200 km radius of the study site were analyzed to estimate the probability of future earthquakes with a magnitude of 4.0 or higher. The study area, Minab County, is located in Hormozgan Province at coordinates 55°00′ to 57°00′ E longitude and 27°00′ to 28°00′ N latitude. For the analytical approach, aerial photographs and 1:100,000-scale geological maps of Minab and its surroundings were examined to identify fault structures. Using ArcMap software, fault segments within a 200km radius of Minab were mapped, and seismic parameters were evaluated. The statistical method was further employed to estimate earthquake probability and recurrence intervals for different magnitudes in the region. This study provides a comprehensive assessment of Minab's seismic hazard, contributing to better risk management and mitigation strategies.
Seismic hazard assessment, Gutenberg-Richter method, Minab city, Geotechnics, Earthquake