TERIA: A Grid-Based Framework for Earthquake Impact Assessment and Disaster Risk Management in Taiwan

TERIA, the Taiwan Earthquake Impact Research and Information Application Platform, is a grid-based framework designed to assess earthquake impacts using diverse inventory databases collected from government agencies. Building on previous developments, TERIA integrates scenario-based simulations, enhanced impact analysis modules, and interactive visualization tools to support disaster risk management and preparedness planning. The platform provides quantitative, spatially explicit assessments of seismic ground motion, casualties, and infrastructure damage—including buildings, roads, bridges, water supply systems, and power networks—presented through interactive 500 m × 500 m grid maps.TERIA has been widely applied in national and regional earthquake drills, including scenario-based simulations of major events such as the 2017 magnitude 6.6 Shanjiao Fault, the 2018 magnitude 8.0 Hualien Outer Sea, the 2021 magnitude 6.9 Zhongzhou Structure, the 2022 magnitude 6.9 Hualien Hsincheng Fault, the 2023 magnitude 7.3 Chiayi Frontal Structure and Meishan Fault, and the 2024 magnitude 8.5 Ryukyu Trench earthquakes. By expanding Taiwan’s seismic databases, improving analysis modules, and enhancing system usability, TERIA provides a standardized, automated environment for earthquake impact assessment, information sharing, and disaster risk management, thereby supporting enhanced earthquake resilience across Taiwan.