Volcanic landslide volumes depend partly on the volcano size, as larger edifices have greater volumes, larger flanks, and can deform more. The landslide volume depends also on the local setting. At the smallest scale, landslides of a few thousand cubic meters (Cecchi et al., 2005). At larger scales, landslides of several million cubic meter involve large valley flanks, and cut deeper into the volcanic edifice to involve hydrothermal systems. Most volcanoes have landslides, and collapse to form a debris avalanche at least once during their lifetime, sometimes several times, and such events occur on all types of volcano, be they oceanic, continental, monogenetic, or polygenetic. Landslides occur from volcanoes in all geodynamic contexts, including mid-ocean rifts, hot spots, arcs, and intraplate settings (Vries et al., 2015).