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Cerro Bravo

Bravo, Cerro

成層火山 · Colombia · 3985m

Cerro Bravo is seen from the east. The summit dome was extruded during the most recent eruption and has a spine (a steep dome) near the top. An older lava dome and cone complex is situated to the left. Multiple collapse events sent block-and-ash flows down over lava flows (center) and onto the Plan de Arriba (lower left). The low tree-covered slope (left foreground) is the remnant of the pre-Cerro Bravo edifice that was destroyed by a Pleistocene caldera-forming event.
Cerro Bravo is seen from the east. The summit dome was extruded during the most recent eruption and has a spine (a steep dome) near the top. An older lava dome and cone complex is situated to the left. Multiple collapse events sent block-and-ash flows down over lava flows (center) and onto the Plan de Arriba (lower left). The low tree-covered slope (left foreground) is the remnant of the pre-Cerro Bravo edifice that was destroyed by a Pleistocene caldera-forming event. · 写真: Photo by David Lescinsky, 1988 (University of Western Ontario). · Wikimedia Commons
タイプ
成層火山
国
Colombia
地域
South America Volcanic Regions / Northern Andean Volcanic Arc
標高
3985m
座標
5.091, -75.293
最終噴火
1720年
テクトニクス環境
Subduction zone / Continental crust (> 25 km)
火山地形
Composite
主要岩石
Dacite
地質学的概要

Cerro Bravo is a relatively low dominantly dacitic lava-dome complex north of Nevado del Ruiz that was constructed within the Pleistocene Quebrada Seca caldera. A series of moderate plinian eruptions during the Holocene were accompanied by pyroclastic flows and lava dome growth. Although historical records of the roughly 4000-m-high Cerro Bravo eruptions have not been found, stratigraphic evidence indicates that it last erupted sometime between the 1595 and 1845 eruptions of Ruiz.

Wikipedia の要約

英語版の要約

Cerro Bravo is a stratovolcano located in Tolima, Colombia, north of the Nevado del Ruiz volcano. The rock type of the volcano is andesite.

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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
4280 BCE~4080 BCE · 1件 · 最大 VEI 41480 BCE~1280 BCE · 1件 · 最大 VEI 41080 BCE~880 BCE · 1件 · 最大 VEI 4880 BCE~680 BCE · 1件 · 最大 VEI 4720~920 · 1件 · 最大 VEI 4920~1120 · 1件 · 最大 VEI 41320~1520 · 1件 · 最大 VEI 41520~1720 · 1件 · 最大 VEI 44280 BCE2880 BCE1280 BCE1201520

詳細タイムライン

  1. 1720年 (±150年)VEI 4地質学的推定
    1720 ~ 進行中
  2. 1330年 (±75年)VEI 4地質学的推定
    1330 ~ 進行中
  3. 1050年 (±75年)VEI 4地質学的推定
    1050 ~ 進行中
  4. 750年 (±150年)VEI 4地質学的推定
    750 ~ 進行中
  5. 紀元前 730年 (±75年)VEI 4地質学的推定
    BCE 730 ~ 進行中
  6. 紀元前 1050年 (±200年)VEI 4地質学的推定
    BCE 1050 ~ 進行中
  7. 紀元前 1310年 (±150年)VEI 4地質学的推定
    BCE 1310 ~ 進行中
  8. 紀元前 4280年 (±150年)VEI 4地質学的推定
    BCE 4280 ~ 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。