Lahar 06 : A type of mudflow that originates on the slopes of volcanoes when volcanic ash and debris becomes saturated with water and flows rapidly downslope
National Atlas of the United States, Geologic Hazards (Article with illustration), US Department of the Interior, USA 2011. http://www.nationalatlas.gov/articles/geology/a_ge ohazards.html, (ND/ Erthq - Amer) {138}