Abstract Three-dimensional (3D) seismic data from the southern Kumano Basin of southwest Japan image a nested series of moderately sized mass transport deposits (MTDs) that slid from a slope along the seaward side of the forearc basin. The deposits are dated to be approximately 0. 3 to 0. https://www.ealisboa.com/flash-choice-Sten-Jacket-M-flash-find/