The conference will be a platform for participants to discuss the current situation, challenges, and advancements related to debris flows, from triggering to deposition, passing through the analysis of their propagation dynamics and interaction with mitigation structures. Physical and numerical modelling together with the description of real cases, site surveys and investigations will be the tools to allow sharing novelty, experiences and best practices. With this in mind, and following the successful 7th edition held in Colorado, USA, in 2019, the Organizing Committee has set the goal to prepare a stimulating scientific program for scientists, professionals, and policy makers.