Puyehue-Cordón Caulle volcan

stratovolcan 2236 m / 7,336 ft
Argentinien/Chile (Zentrum), Südamerika, -40.59°S / -72.12°W
Condition actuelle: normal / en sommeil (1 sur 5)
Last update: 19 août 2018
Puyehue-Cordón Caulle with the steam and ash plume from the rift zone eruption seen from space on 26 January 2012 (NASA Earth Observatory)
Puyehue-Cordón Caulle with the steam and ash plume from the rift zone eruption seen from space on 26 January 2012 (NASA Earth Observatory)

Puyehue-Cordón Caulle volcano in Central Chile is a complex of 2 volcanoes: Puyehue volcano and the fissure system of Cordón Caulle. Puyehue volcano has a 2.4 km wide summit caldera, but historical eruptions occurred at the Cordón Caulle rift zone.
The Cordón Caulle geothermal area occupies a 6 x 13 km wide depression and is the largest active geothermal area in the southern Andes.
Neighboring Calbuco and Puyehue volcanoes lie on the same traverse fault and is has been noted that they tend at the same time or within only few years distance.

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Style éruptif tipique: explosive
Eruptions du volcan Puyehue-Cordón Caulle: 2011 (4 June)- 2012, 1960, 1934, 1929, 1921-22, 1905(?), 1893(?)

No recent earthquakes
HeureMag. / ProfondeurDistance/Lieu

Introduction

The Puyehue-Cordón Caulle volcanic complex (PCCVC) is a large NW-SE-trending late-Pleistocene to Holocene basaltic-to-rhyolitic transverse volcanic chain SE of Lago Ranco.
The 1799-m-high Pleistocene Cordillera Nevada caldera lies at the NW end, separated from Puyehue stratovolcano at the SE end by the Cordón Caulle fissure complex. The Pleistocene Mencheca volcano with Holocene flank cones lies NE of Puyehue.
The basaltic-to-rhyolitic Puyehue volcano is the most geochemically diverse of the PCCVC. The flat-topped, 2236-m-high Puyehue volcano was constructed above a 5-km-wide caldera and is capped by a 2.4-km-wide summit caldera of Holocene age.
Lava flows and domes of mostly rhyolitic composition are found on the eastern flank of Puyehue. Historical eruptions originally attributed to Puyehue, including major eruptions in 1921-22 and 1960, are now known to be from the Cordón Caulle rift zone.
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Source: USGS / GVP

1960 éruption après le séisme au Chili grande
Puyehue-Cordn Caulle volcan en éruption a commencé le 24 mai 1960. Il est possible, que l'éruption a été déclenchée par le grand tremblement de terre au Chili (magnitude 9,5, le plus grand tremblement de terre mesuré en histoire), le 22 mai 1960. L'éruption a commencé avec un explosif (subplinian) phase puissant, qui a formé une colonne de cendres 8 km de haut.

2011 ruption de les Puyehue-Cordn
Une nouvelle éruption a débuté au complexe du volcan Puyehue-Cordón les au Chili le samedi 4 juin 2011 après 51 ans d'inactivité.

See also: Sentinel hub | Landsat 8 | NASA FIRMS
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