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TeachMeFinance.com - explain Phreatic eruption Phreatic eruption The term 'Phreatic eruption' as it applies to the area of volcanos can be defined as '　　explosion that occurs when water comes in contact with hot rocks or ash near a volcanic vent, causing steam explosions. 　　 An explosive volcanic eruption caused when water and heated volcanic rocks interact to produce a violent expulsion of steam and pulverized rocks. Magma is not involved. 　　 The eruption of Taal Volcano in the Philippine Islands in 1965 typifies 'Phreatic' (or steam-blast) behavior. Here, a great column of steam, dust, ash, and cinders is blasted to a height of several thousand'. Previous 5 Terms: Photovoltaic cell net shipments Photovoltaic module Photovoltaic System phraseology phreatic Next 5 Terms: Phreatic surface Phreatic water Phreatomagmatic eruption　 Phreatophyte phrenic About the author Mark McCracken Author: Mark McCracken is a corporate trainer and author living in Higashi Osaka, Japan. He is the author of thousands of online articles as well as the Business English textbook, "25 Business Skills in English". Copyright © 2005-2011 by Mark McCracken, All Rights Reserved. TeachMeFinance.com is an informational website, and should not be used as a substitute for professional medical, legal or financial advice. Information presented at TeachMeFinance.com is provided on an "AS-IS" basis. Please read the disclaimer for details.