Location, extent of the mass wasting deposits associated with the flank collapses from the Montagne Pelée volcano (Martinique Island) and corresponding profiles. (a) Interpreted bathymetric map of the mass wasting deposit showing the locations of the IODP Expedition 340 drill sites (U-1399A & U-1400C) and topographic profiles (b) and seismic line (c). (b) Topographic profile. SB: slope break. (c) CARAVAL 16 seismic line. Black lines: interpretative limits of the landslide unit deposit (dashed line: basal décollement layer). Terrestrial digital elevation model from the Institut National Géographique et Forestière; Marine geophysical data from the oceanographic cruises AGUADOMAR (1999); CARAVAL (2002) and GWADASEIS (2009) (Deplus et al., 2001, 2002; Feuillet et al., 2010).