Phreatomagmatic Eruption 2 : An explosion composed of magmatic gases and steam derived from groundwater or surface water, combined with lava and other debris. (Miller, 1989)
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}