Volcanic Landslide : Natural Disaster. The downslope movement of soil, rock debris, and sometimes glacial ice, with or without water, from the flank of a volcano. (Brantley, 1994). See: Debris Avalanche
U.S. Department of the Interior, U.S. Geological Survey, US Geological Society (USGS), Glossary of Volcano and Related Terminology, USGS/Cascades Volcano Observatory, Vancouver, Washington, USA 2006. http://vulcan.wr.usgs.gov/Glossary/volcano_termino logy.html, (ND/ Volc Sci - Amer) {493}