エチオピア · 楯状火山
Mount Alayta
Alayta
- タイプ
- 楯状火山
- 標高
- 1496m
- 最終噴火
- 1915年
- タイプ
- 楯状火山
- 国
- エチオピア
- 地域
- 東アフリカ / Afar Rift Volcanic Province
- 標高
- 1496m
- 座標
- 12.888, 40.573
- 最終噴火
- 1915年
- テクトニクス環境
- リフト帯 / 中間地殻 (15-25 km)
- 火山地形
- 楯状火山
- 主要岩石
- 玄武岩 / ピクライト質玄武岩
地質学的概要
The massive Alayta shield volcano covers an area of 2700 km2 in the western Danakil depression SW of Lake Afrera. A series of very recent craters is aligned along the NNW-trending axis of the basaltic-to-trachytic shield. The lava field, covered by very fresh flows, was erupted from N-S fissures along the east side of the shield volcano and laps up against the western flank of Afderà volcano. Two historical eruptions that were formerly attributed to Afderà actually originated from Alayta. One of those eruptions, in 1907, produced a large lava flow from a SE-flank vent. Fumarolic activity occurs at two locations in the southern part of the complex.
Wikipedia の要約
英語版の要約Mount Alayta is an active shield volcano in the Afar Region of Ethiopia. It is part of the Afar Triangle, a highly active volcanic region which includes the adjacent Mount Afdera. Mount Alayta covers an area of 2,700 square kilometers southwest of Lake Afrera. A chain of younger craters are aligned along a north-northwest axis in the basaltic-to-trachytic shield along the east side of the shield volcano, which extends to the western flank of Mount Afdera. The Alayta Lavafeld was formed from a series of north-south fissures. In two areas on the southern side of the volcanic complex, fumaroles can be observed.
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噴火履歴
2件の記録用語集詳細タイムライン
- 1915年VEI 2観測記録1915-07-02 ~ 終了日不明
- 1907年VEI 2観測記録1907-06-16 ~ 1907-08-04SE flank
近くの火山
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。