The basic types of landslide movement Slide.This is one of the most common forms of failure a and can be subdivided into translational and rotational slides.Rotational slides are sometimes called slumps because they move with rotation.Translational slides have a planar,or two dimensional surface of rupture.Slides are most common when the toe of the slope is undercut.The basic types of landslide movement  Slide. This is one of the most common forms of failure and can be subdivided into translational and rotational slides. Rotational slides are sometimes called slumps because they move with rotation. Translational slides have a planar, or two dimensional surface of rupture. Slides are most common when the toe of the slope is undercut