The 2000 AD eruption of Copahue Volcano, Southern Andes

Although all historic eruptions of the Copahue volcano (37°45'S-71°10.2'W, 3,001 m a.s.l.) have been of low magnitude, the largest (VEI=2) and longest eruptive cycle occurred from July to October 2000. Phreatic phases characterized the main events as a former acid crater lake was blown up....

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Autores principales:	Naranjo,José Antonio, Polanco,Edmundo
Lenguaje:	English
Publicado:	Servicio Nacional de Geología y Minería (SERNAGEOMIN) 2004
Materias:	Volcanic hazards Explosive volcanism Holocene Copahue volcano Andes Chile Argentina
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-02082004000200007
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spelling	oai:scielo:S0716-020820040002000072005-03-23The 2000 AD eruption of Copahue Volcano, Southern AndesNaranjo,José AntonioPolanco,Edmundo Volcanic hazards Explosive volcanism Holocene Copahue volcano Andes Chile Argentina Although all historic eruptions of the Copahue volcano (37°45'S-71°10.2'W, 3,001 m a.s.l.) have been of low magnitude, the largest (VEI=2) and longest eruptive cycle occurred from July to October 2000. Phreatic phases characterized the main events as a former acid crater lake was blown up. Low altitude columns were deviated by low altitude winds in variable directions, but slightly predominant to the NNE. The presence of the El Agrio caldera depression to the east of Copahue volcano may have caused the variable plume divergences and disturb the prevailing wind direction which is normally to the southeast. Larger magnitude events, comparable to prehistoric eruptions, could occur in the future at Copahue volcano, seriously impacting the tourist localities on the Argentinean (eastern) flanks of this frontier volcano. Unless a constant educational program is implemented, emergency plans will not be enough to prevent catastrophic effects, because the local population strongly believes that only low magnitude eruptions such as those of the sixties, nineties and 2000 AD can be produced at the Copahue volcanoinfo:eu-repo/semantics/openAccessServicio Nacional de Geología y Minería (SERNAGEOMIN)Revista geológica de Chile v.31 n.2 20042004-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-02082004000200007en10.4067/S0716-02082004000200007
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Volcanic hazards Explosive volcanism Holocene Copahue volcano Andes Chile Argentina
spellingShingle	Volcanic hazards Explosive volcanism Holocene Copahue volcano Andes Chile Argentina Naranjo,José Antonio Polanco,Edmundo The 2000 AD eruption of Copahue Volcano, Southern Andes
description	Although all historic eruptions of the Copahue volcano (37°45'S-71°10.2'W, 3,001 m a.s.l.) have been of low magnitude, the largest (VEI=2) and longest eruptive cycle occurred from July to October 2000. Phreatic phases characterized the main events as a former acid crater lake was blown up. Low altitude columns were deviated by low altitude winds in variable directions, but slightly predominant to the NNE. The presence of the El Agrio caldera depression to the east of Copahue volcano may have caused the variable plume divergences and disturb the prevailing wind direction which is normally to the southeast. Larger magnitude events, comparable to prehistoric eruptions, could occur in the future at Copahue volcano, seriously impacting the tourist localities on the Argentinean (eastern) flanks of this frontier volcano. Unless a constant educational program is implemented, emergency plans will not be enough to prevent catastrophic effects, because the local population strongly believes that only low magnitude eruptions such as those of the sixties, nineties and 2000 AD can be produced at the Copahue volcano
author	Naranjo,José Antonio Polanco,Edmundo
author_facet	Naranjo,José Antonio Polanco,Edmundo
author_sort	Naranjo,José Antonio
title	The 2000 AD eruption of Copahue Volcano, Southern Andes
title_short	The 2000 AD eruption of Copahue Volcano, Southern Andes
title_full	The 2000 AD eruption of Copahue Volcano, Southern Andes
title_fullStr	The 2000 AD eruption of Copahue Volcano, Southern Andes
title_full_unstemmed	The 2000 AD eruption of Copahue Volcano, Southern Andes
title_sort	2000 ad eruption of copahue volcano, southern andes
publisher	Servicio Nacional de Geología y Minería (SERNAGEOMIN)
publishDate	2004
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-02082004000200007
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The 2000 AD eruption of Copahue Volcano, Southern Andes

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