Convergent plate margins are important tectonic environments as these margins (1) host the largest and most destructive earthquakes and related tsunamis as well as the largest volcanic eruptions on Earth and (2) are accompanied by large onshore/offshore basins that are suitable for hydrocarbon preservation. They also represent natural laboratories to study fundamental cycles of the Earth System (e.g. carbon, water, etc.) and the fluid exchange between the Earth and the Ocean. Convergent plate margins are more challenging research environments due to their structural complexity and their dynamic evolution on short time scales. Over the last decade, the development of geophysical imaging and monitoring techniques as well as numerical and laboratory modeling have been proven useful to unravel some of the complexity of subduction zone processes. This workshop aims at expertise exchange from different fields to improve the understanding of convergent margins as multi-faceted geological systems.