Integrated Seismic Hazard Assessment of Moradabad Region, Northern India
摘要
This study presents an integrated seismic hazard assessment for the Moradabad region, located in Northern India, utilizing the analytical hierarchy process (AHP) methodology. The region is highly susceptible to seismic hazards, as it falls under seismic zone IV, indicating a high risk of moderate-to-severe earthquake occurrences. The assessment incorporates multiple criteria, including peak ground acceleration (PGA), predominant frequency (PF), peak amplification (PA), average shear wave velocity for 30 m depth (Vs30), and engineering bedrock depth (EBR) to evaluate the region's vulnerability to seismic events. By systematically ranking and weighting these factors, the AHP provides a comprehensive framework for prioritizing areas at risk and identifying critical zones. Our study categorizes Moradabad city into five hazard zones, from low to severe. Through this analysis, we determine that approximately 41% of the study region lies within probable high-impact seismic hazards zones. Zones with a hazard index less than 0.331, primarily in the north and south, are classified as low hazard. Moderate hazard (0.332–0.400) and high hazard (0.401–0.487) zones transition toward the central region, which exhibits a hazard index exceeding 0.564, indicating a severe hazard level. Our results highlight the spatial distribution of seismic hazards across the Moradabad region, offering valuable insights for urban planners and policymakers to enhance disaster preparedness and mitigation strategies. This case study underscores the effectiveness of AHP in seismic hazard assessment and its potential application in other urban contexts.