Volcanic eruptions represent major multi-hazard events that correlate with a wide range of global and regional environmental issues. These hazards pose a unique challenge to the habitability and health of humans inhabiting the 40,000 km long pacific “Ring of Fire”. These regions have also experienced accelerated economic and human population growth. However, there is only a limited understanding as to how these regions, in particular, the Pacific north-west, and their inhabitants are and will be impacted by volcanic hazards. The goal of this session is to bring together scientists, engineers and policy makers to review, analyze and assess the risk that volcanically active centers pose for the future development of these regions. These discussions will also provide the community with a better understanding and estimate of future hazard potentials.