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チリ · ボリビア · 成層火山

Irruputuncu

タイプ
成層火山
標高
5163m
最終噴火
1995年
Steam rises from the fumarolically active southern summit crater of Irruputuncu, a small stratovolcano that straddles the Chile/Bolivia border. Irruputuncu, seen here from the WSW, was constructed within the collapse scarp of a Holocene debris avalanche whose deposit extends to the SW. Levees of viscous lava flows down the western flank of an edifice that was constructed within this scarp are seen at the lower left. The first unambiguous historical eruption from Irruputuncu took place in November 1995.
Steam rises from the fumarolically active southern summit crater of Irruputuncu, a small stratovolcano that straddles the Chile/Bolivia border. Irruputuncu, seen here from the WSW, was constructed within the collapse scarp of a Holocene debris avalanche whose deposit extends to the SW. Levees of viscous lava flows down the western flank of an edifice that was constructed within this scarp are seen at the lower left. The first unambiguous historical eruption from Irruputuncu took place in November 1995. · 写真: Photo by José Naranjo, 2001 (Servico Nacional de Geologica y Mineria).
タイプ
成層火山
国
チリ · ボリビア
地域
南アメリカ / Central Andean Volcanic Arc
標高
5163m
座標
-20.730, -68.550
最終噴火
1995年
テクトニクス環境
沈み込み帯 / 大陸地殻 (> 25 km)
火山地形
複成火山
主要岩石
安山岩 / 玄武岩質安山岩
地質学的概要

Irruputuncu is a small stratovolcano that straddles the Chile/Bolivia border. It is the youngest and most southerly of a NE-SW-trending chain of volcanoes. It was constructed within the collapse scarp of a Holocene debris avalanche whose deposit extends to the SW. Subsequent eruptions filled much of this scarp and produced thick, viscous lava flows down the W flank. The summit complex contains two craters, the southernmost of which is fumarolically active. The first unambiguous historical eruption took place in November 1995, when phreatic explosions produced dark ash clouds.

Wikipedia の要約

英語版の要約

Irruputuncu is a volcano in the commune of Pica, Tamarugal Province, Tarapacá Region, Chile, as well as San Pedro de Quemes Municipality, Nor Lípez Province, Potosí Department, Bolivia. The mountain's summit is 5,163 m (16,939 ft) high and has two summit craters—the southernmost 200 m (660 ft)-wide one has active fumaroles. The volcano also features lava flows, block and ash flows and several lava domes. The volcano is part of the Andean Central Volcanic Zone (CVZ).

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噴火履歴

2件の記録用語集
概要 (VEI時系列)
バーをクリックすると個別の噴火が表示されます · 矢印キーで棒を移動、Enterで表示
1989~1990 · 1件 · 最大 VEI ?1994~1995 · 1件 · 最大 VEI 219891990199219931994

詳細タイムライン

  1. 1995年VEI 2観測記録
    1995-09-01 ~ 1995-09-26
  2. 1989年VEI ?根拠の記載なし
    1989-12-16 ~ 終了日不明

近くの火山

外部リンク

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