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Room: Ballroom B

Date: 4/15/2026

Session Time: 10:30 AM to 11:45 AM (local time)

Advancing Seismic Hazard and Risk Assessment through Multi-Disciplinary Approaches

This session brings together a diverse community of researchers and practitioners working across disciplines to tackle the complex challenges of seismic hazard and risk assessment, before and after earthquakes occur. We welcome contributions that enhance understanding of and preparedness for earthquake disasters, with an emphasis on multidisciplinary modeling and assessment approaches. We also encourage submissions that highlight the development and application of community models and databases, including those that integrate post-earthquake observations and datasets, which serve as foundational tools for collaborative research, rapid assessment and decision-making.

We particularly encourage contributions on advanced risk modeling frameworks that trace the complete pathway from earthquake initiation to societal impacts, incorporating innovations such as digital twins, real-time or near-real-time post-earthquake data and rapid hazard and risk assessment systems to support emergency response and recovery. Presentations addressing broader topics — including the evolving built environment, building codes, challenges in hazard mitigation planning and risk communication — are also welcome.

We invite contributions that integrate seismology, geology, geomorphology, and geodesy in earthquake forecasting and hazard–risk frameworks. Topics include forecasting across multiple timescales; fault source characterization; complex and multi-segment rupture modeling; multi-cycle simulators; dynamic rupture processes; and ground-motion modeling with associated uncertainties, including physics-based simulations, non-ergodic models, and site effects. The session also welcomes studies on exposure databases describing populations, buildings, and infrastructure, as well as physical vulnerability and fragility models based on observations, simulations, and post-earthquake damage data, including time-dependent effects such as aging, deterioration, and cumulative damage. Applications of the International Macroseismic Scale and national annexes are also encouraged.

By convening this diverse community, we aim to share insights from recent earthquakes, compare methodologies and identify pathways to strengthen modeling capabilities, support rapid post-event decision-making and enhance societal resilience.

Conveners

Chung-Han Chan, National Central University, Taiwan (hantijun@googlemail.com)
Matthew Gerstenberger, Earth Sciences New Zealand (m.gerstenberger@gns.cri.nz)
Tiegan E. Hobbs, Geological Survey of Canada (thobbs@eoas.ubc.ca)
Asako Iwaki, National Research Institute for Earth Science and Disaster Prevention (iwaki@bosai.go.jp)
Kishor Jaiswal, U.S. Geological Survey (kjaiswal@usgs.gov)
Jessie K Saunders, California Institute of Technology (jsaunder@caltech.edu)
David J Wald, U.S. Geological Survey (wald@usgs.gov)

Oral Presentations