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マシュー島

Matthew Island

成層火山 · France - claimed by Vanuatu · 177m

Matthew Island is composed of two cones separated by a narrow isthmus. Only the triangular eastern portion of the small, 0.6 x 1.2 km wide island existed prior to the 1940s, after which eruptions began to build the larger western segment (part of which is seen in the photo). The western cone consists primarily of lava flows and contains a crater that is breached to the NW.
Matthew Island is composed of two cones separated by a narrow isthmus. Only the triangular eastern portion of the small, 0.6 x 1.2 km wide island existed prior to the 1940s, after which eruptions began to build the larger western segment (part of which is seen in the photo). The western cone consists primarily of lava flows and contains a crater that is breached to the NW. · 写真: Photo by Royal New Zealand Air Force, 1977. · Wikimedia Commons
タイプ
成層火山
国
France - claimed by Vanuatu
地域
Southwestern Pacific Volcanic Regions / Vanuatu Volcanic Arc
標高
177m
座標
-22.330, 171.320
最終噴火
1956年
テクトニクス環境
Subduction zone / Crustal thickness unknown
火山地形
Composite
主要岩石
Andesite / Basaltic Andesite
地質学的概要

Matthew Island is composed of two low andesitic-to-dacitic cones separated by a narrow isthmus. The Matthew name originates from an English mariner who sighted the island in 1788. Only the triangular eastern portion of the 0.6 x 1.2 km island was present prior to the 1940s, when construction of the larger western segment began; it consists primarily of lava flows. The western cone contains a crater that is breached to the NW and is filled by a lava flow whose terminus forms the NW coast.

Wikipedia の要約

英語版の要約

Matthew Island and Hunter Island are two uninhabited volcanic islands in the South Pacific, 300 kilometres (190 mi) east of New Caledonia and south-east of Vanuatu. The pair, which lie 70 km (43 mi) apart, are claimed by Vanuatu as part of Tafea Province, and considered by the people of Aneityum part of their custom ownership, but also claimed by France as part of New Caledonia.

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
1828~1843 · 1件 · 最大 VEI ?1946~1961 · 3件 · 最大 VEI 21961~1976 · 3件 · 最大 VEI 118281858190219321961

詳細タイムライン

  1. 1976年VEI 1地質学的推定
    1976-11-27 ~ 進行中
  2. 1966年VEI ?地質学的推定
    1966-08-16 ~ 進行中
  3. 1963年VEI 0観測記録
    1963-09-11 ~ 1964-07-02
    Norfolk Island Ridge
  4. 1956年 (±2年)VEI 0観測記録
    1956-07-02 ~ 進行中
    West-Matthew
  5. 1954年VEI 2観測記録
    1954-10-16 ~ 進行中
    West-Matthew (October 1954, not 1953)
  6. 1949年VEI 2観測記録
    1949 ~ 進行中
    West-Matthew
  7. 1828年VEI ?地質学的推定
    1828-01 ~ 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。