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ピコ山

Pico

成層火山 · Portugal · 2351m

The conical Pico stratovolcano rising above the clouds is seen here from Fayal Island to the northwest. The 46-km-long Pico Island can be broadly separated into the Pico stratovolcano in the west, the Planalto da Achada fissure zone in the east (a roughly 30-km-long linear ridge of fissures and cones), and the Topo-Lajes volcano in the south. Pico volcano is capped by a 560-m-wide summit crater that contains a small steep-sided cone visible on the left side of the summit in this image. Recent eruptions have been recorded from the flanks of Pico and in the Planalto da Achada fissure zone.
The conical Pico stratovolcano rising above the clouds is seen here from Fayal Island to the northwest. The 46-km-long Pico Island can be broadly separated into the Pico stratovolcano in the west, the Planalto da Achada fissure zone in the east (a roughly 30-km-long linear ridge of fissures and cones), and the Topo-Lajes volcano in the south. Pico volcano is capped by a 560-m-wide summit crater that contains a small steep-sided cone visible on the left side of the summit in this image. Recent eruptions have been recorded from the flanks of Pico and in the Planalto da Achada fissure zone. · 写真: Photo by Rick Wunderman, 1997 (Smithsonian Institution). · Wikimedia Commons
タイプ
成層火山
国
Portugal
地域
Atlantic Ocean Volcanic Regions / Azores-Terceira Rift Volcanic Province
標高
2351m
座標
38.470, -28.400
最終噴火
1720年
テクトニクス環境
Rift zone / Oceanic crust (< 15 km)
火山地形
Composite
主要岩石
Basalt / Picro-Basalt
地質学的概要

The conical Pico stratovolcano occupies the western end of Pico Island and is the highest volcano in the Azores. The dominantly basaltic edifice lies west of on an older linear volcano with numerous flank cones that forms most of the 46-km-long island. It was constructed over the Montanha volcanic complex on the eastern side of the island and is capped by a 500-m-wide summit crater that is overtopped by a small steep-sided cone. An eruption beginning in 1562 from the Sao Roque Piedade/Planalto da Achada fissure zone produced lava flows that reached the northern coast. Two fissures erupted on the NNW flank and SE flank of Pico volcano in 1718, with lavas reaching the north and south coasts. Lava flows from a fissure on the SE flank in 1720 reached the ocean.

Wikipedia の要約

ピコ山 は成層火山であり、アゾレス諸島（ピコ島）の最高峰である。海抜2,351メートルに達し、ポルトガルと大西洋中央海嶺において最高地点である。ピコ山はアゾレス諸島の他の頂より2倍以上も高い。

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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
1562~1602 · 1件 · 最大 VEI 21682~1722 · 2件 · 最大 VEI 21923~1963 · 1件 · 最大 VEI 015621642176318431923

詳細タイムライン

  1. 1963年VEI 0地質学的推定
    1963-12-15 ~ 進行中
    Off NW coast
  2. 1720年VEI 2観測記録
    1720-07-10 ~ 1720-12
    SE flank (400 m)
  3. 1718年VEI 2観測記録
    1718-02-01 ~ 1718-12-15
    SE flank (200 m), NW flank (1200 m)
  4. 1562年VEI 2観測記録
    1562-09-21 ~ 1564
    East flank (800 m)

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。