3-D perspective view of shaded relief bathymetry offshore Chenega village.

3-D perspective view of shaded relief bathymetry offshore Chenega village. Shaded patches of seafloor depict areas that experienced dramatic changes in water depth between 1957 and 2014. Patches within the intermediate basin (light blue to green) are sites of sediment evacuation and deepening; the floor of the farthest (distal) basin (purple and blue) is a site of sediment deposition. The proximal basin (yellows to red) is where the landslide originated in 1964. Black arrows are interpreted sediment flow pathways. White arrows indicate the inferred 1964 tsunami travel direction and yellow lines mark areas surrounding Chenega Village that experienced significant tsunami runup.