Through the discussion in Section 5 and Section 6, we found that the majority of the related studies focused on quantitative development . Quantitative methodologies can provide realistic numerical analysis results for better understanding and informed decision making . However, these quantitative methodologies are required to be driven by sufficient and reliable prior knowledge (statistical data, assumptions, analytic models, etc) . Currently, research on multi-hazard coupling effects is still in its infancy. Despite the increasing attention devoted to the multi-hazard, many powerful quantitative methodologies are limited by the lack of sufficient cognition of the coupling hazard-formative mechanism, greatly hindering the development of relevant research.