Coastal communities brace for heightened landslide risks as tectonic forces reshape seafloor.
The sediment in the Lesser Antilles Forearc Accretionary Prism behaves in a specific way when under high lateral loads. Exceeding the sediment yield strength leads to permanent deformations and stress release through thrust faults. High loading rates cause delayed consolidation and increased pore pressures. The sediment's behavior was studied using specialized tests, showing that it deforms plastically beyond a certain point and can fail under specific conditions. The major stress in the sediment wedge rotates into the horizontal plane, indicating extensional stress paths.
