P-wave

S-wave

Earthflows involve fine-grained material that forms a thick slurry and has a fluid motion. The hourglass shape is typical - http://geology.about.com/od/naturalhazardsclimate/ig/Landslides/slide-eflow.htm

Scoop - Translational Slide, Landslide Picture Gallery - http://geology.about.com/od/naturalhazardsclimate/ig/Landslides/slide-translat.htm

Owens