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Dabbahu Volcano

Dabbahu

成層火山 · Ethiopia · 1401m

The slopes of Dabbahu volcano in the background are part of a large volcanic massif consisting of obsidian flows, lava domes, cones, and basaltic lava flows constructed on a shield volcano. This view from the N with people for scale shows Da'Ure, a 500-m-long fissure vent formed during the first historical eruption in September 2005. A small dome was formed during the eruption. The central part of the volcano lies farther to the right off the margin of the photo.
The slopes of Dabbahu volcano in the background are part of a large volcanic massif consisting of obsidian flows, lava domes, cones, and basaltic lava flows constructed on a shield volcano. This view from the N with people for scale shows Da'Ure, a 500-m-long fissure vent formed during the first historical eruption in September 2005. A small dome was formed during the eruption. The central part of the volcano lies farther to the right off the margin of the photo. · 写真: Photo by Anthony Philpotts, 2005 (University of Connecticut). · Wikimedia Commons
タイプ
成層火山
Ethiopia
地域
Eastern Africa Volcanic Regions / Afar Rift Volcanic Province
標高
1401m
座標
12.595, 40.480
最終噴火
2005年
テクトニクス環境
Rift zone / Intermediate crust (15-25 km)
火山地形
Composite
主要岩石
Basalt / Picro-Basalt
地質学的概要

Dabbahu (also known as Boina, Boyna, or Moina) is a Pleistocene-to-Holocene volcanic massif forming an axial range of the Afar depression SSW of the Alayta massif. Late-stage pantelleritic obsidian flows, lava domes, and pumice cones form the summit and upper flanks. The volcano rises above the Teru Plain and was built over a volumetrically dominant base of basaltic-to-trachyandesitic lava flows of a shield volcano. Late-stage basaltic fissure eruptions also occurred at the NW base of the volcano. Abundant fumaroles are located along the crest of the volcano and extend NE towards Alayta. The first historical eruption took place from a fissure vent on the NE flank in September 2005, producing ashfall deposits and a small pumice dome. More than 6000 people were evacuated from neighboring villages.

Wikipedia の要約

英語版の要約

Dabbahu Volcano is an active volcano located in the remote Afar Region of Ethiopia. This stratovolcano is part of the Afar Triangle, a highly active volcanic region which includes Erta Ale. An eruption on September 26, 2005 created a large fissure in the ground, known as the Dabbahu fissure.

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
5850 BCE~5588 BCE · 1件 · 最大 VEI ?4541 BCE~4279 BCE · 1件 · 最大 VEI ?3493 BCE~3232 BCE · 1件 · 最大 VEI ?1743~2005 · 1件 · 最大 VEI 35850 BCE4017 BCE1923 BCE90 BCE1743

詳細タイムライン

  1. 2005年VEI 3観測記録
    2005-09-26 ~ 2005-09-29
    NE flank (Da'Ure)
  2. 紀元前 3450年 (±1800年)VEI ?地質学的推定
    BCE 3450 ~ 進行中
  3. 紀元前 4450年 (±2700年)VEI ?地質学的推定
    BCE 4450 ~ 進行中
    North flank
  4. 紀元前 5850年 (±4300年)VEI ?地質学的推定
    BCE 5850 ~ 進行中
    North flank

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。