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サンタ・イザベル火山

Santa Isabel

楯状火山 · Colombia · 4944m

Santa Isabel is a small glaciated volcano is seen here from its much larger neighbor to the NE, Nevado del Ruiz. Holocene lava flows fill SW and SE valleys. A small Holocene lava dome was emplaced about 10 km SW of the volcano.
Santa Isabel is a small glaciated volcano is seen here from its much larger neighbor to the NE, Nevado del Ruiz. Holocene lava flows fill SW and SE valleys. A small Holocene lava dome was emplaced about 10 km SW of the volcano. · 写真: Photo by Norm Banks, 1985 (U.S. Geological Survey). · Wikimedia Commons
タイプ
楯状火山
国
Colombia
地域
South America Volcanic Regions / Northern Andean Volcanic Arc
標高
4944m
座標
4.818, -75.365
最終噴火
-850年
テクトニクス環境
Subduction zone / Continental crust (> 25 km)
火山地形
Shield
主要岩石
Andesite / Basaltic Andesite
地質学的概要

Santa Isabel is a small andesitic shield volcano that is dwarfed by its neighbors to the NE (Nevado del Ruiz) and SE (Tolima). Three lava domes occupy the elongated, N-S-trending glaciated summit region, which has two main peaks. Holocene lava flows fill valleys to the SW and SE. A small Holocene lava dome was emplaced at the center of a circular depression about 10 km SW. No historical eruptions are known.

Wikipedia の要約

英語版の要約

Nevado de Santa Isabel is a shield volcano straddling the boundaries of the Colombian departments of Tolima, Caldas, and Risaralda, being the highest point of the latter. The volcano lies approximately 10 kilometers southwest of the larger Nevado del Ruiz volcano. Santa Isabel is the third highest peak in Los Nevados National Natural Park. It is a relatively flat volcano with three domes of nearly equal elevation.

Wikipedia · CC BY-SA · 記事全文を読む →

噴火履歴

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
5500 BCE~5306 BCE · 1件 · 最大 VEI ?4919 BCE~4725 BCE · 1件 · 最大 VEI ?3562 BCE~3369 BCE · 1件 · 最大 VEI ?1044 BCE~850 BCE · 1件 · 最大 VEI ?5500 BCE4337 BCE3175 BCE2206 BCE1044 BCE

詳細タイムライン

  1. 紀元前 850年VEI ?地質学的推定
    BCE 850 ~ 進行中
  2. 紀元前 3550年VEI ?地質学的推定
    BCE 3550 ~ 進行中
  3. 紀元前 4800年VEI ?地質学的推定
    BCE 4800 ~ 進行中
  4. 紀元前 5500年VEI ?地質学的推定
    BCE 5500 ~ 進行中

外部リンク

⚠ 参考情報です。緊急対応には使用しないでください。