Practical Application of Probabilistic Fault Displacement Hazard Analysis Based on Distance from the Earthquake Source Fault

Key Points

• This research aims to enhance the understanding of fault displacement hazards by improving predictive models based on distance from earthquake source faults.
• Implemented a probabilistic fault displacement hazard analysis (PFDHA) at the Ikata site in northwestern Shikoku.
• Developed a new predictive equation without categorizing main and secondary faults.
• Integrated distance from the source fault to evaluate the effects on structural safety.
• Identified significant characteristics of the new predictive model in related to fault displacement hazards at the Ikata site.
• Showed improvements in understanding fault displacement effects on specific structures, suggesting better predictive accuracy.