Investigation of GIS-based Analytical Hierarchy Process for Multi-Criteria Earthquake Risk Assessment: The Case Study of Kahramanmaras Province
Muhammed Enes Atik, Obaidurrahman SafiThe risk level that earthquakes pose to the environment depends on different factors. Correctly analyzing the effects of these factors is a crucial step in identifying risky areas before the earthquake. Geographic information systems (GIS) provide essential tools for determining the weights of these factors, analyzing them, and creating risk maps. Two devastating earthquakes occurred in Türkiye in February 2023, centered in Kahramanmaras. In this study, research was carried out to estimate the damage caused by the earthquake in Kahramanmaras by analyzing pre-earthquake data with GIS. The determined factors are seven: fault line risk zone, epicenter risk zone, depth of the magnitude, slope, curvature, population density, and building density. These factors have created different weighting scenarios with the Analytical Hierarchy Process (AHP). As a result of the analyses, risk maps were produced. Evaluations were made by comparing the risk maps produced with DPM. The findings emphasize the importance of considering multiple risk criteria when assessing earthquake risk.