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パガン島

Pagan

成層火山 · United States · 570m

Pagan Island, the largest and one of the most active of the Mariana Islands, consists of two volcanoes connected by a narrow isthmus. Both North and South Pagan were constructed within calderas. North Pagan, the most active of the two, is seen here from the west coast of the isthmus, SW of the summit; it was constructed within a 7-km-wide caldera.
Pagan Island, the largest and one of the most active of the Mariana Islands, consists of two volcanoes connected by a narrow isthmus. Both North and South Pagan were constructed within calderas. North Pagan, the most active of the two, is seen here from the west coast of the isthmus, SW of the summit; it was constructed within a 7-km-wide caldera. · 写真: Photo by Norm Banks, 1983 (U.S. Geological Survey). · Wikimedia Commons
タイプ
成層火山
国
United States
地域
北西太平洋 / Mariana Volcanic Arc
標高
570m
座標
18.130, 145.800
最終噴火
2021年
テクトニクス環境
Subduction zone / Crustal thickness unknown
火山地形
Composite
主要岩石
Basalt / Picro-Basalt
地質学的概要

Pagan Island, the largest and one of the most active of the Mariana Islands volcanoes, consists of two stratovolcanoes connected by a narrow isthmus. Both North and South Pagan stratovolcanoes were constructed within calderas, 7 and 4 km in diameter, respectively. North Pagan at the NE end of the island rises above the flat floor of the northern caldera, which may have formed less than 1,000 years ago. South Pagan is a stratovolcano with an elongated summit containing four distinct craters. Almost all of the recorded eruptions, which date back to the 17th century, have originated from North Pagan. The largest eruption during historical time took place in 1981 and prompted the evacuation of the sparsely populated island.

Wikipedia の要約

英語版の要約

Pagan is a volcanic island in the Marianas archipelago in the northwest Pacific Ocean, under the jurisdiction of the Commonwealth of the Northern Mariana Islands. It lies midway between Alamagan to the south and Agrihan to the north. The island has been largely uninhabited since the majority of the residents were evacuated due to volcanic eruptions in 1981.

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
1340~1408 · 1件 · 最大 VEI ?1612~1681 · 1件 · 最大 VEI ?1749~1817 · 1件 · 最大 VEI ?1817~1885 · 3件 · 最大 VEI 31885~1953 · 5件 · 最大 VEI 31953~2021 · 13件 · 最大 VEI 413401476168118171953

詳細タイムライン

  1. 2021年VEI 2観測記録
    2021-07-29 ~ 2021-09-06
  2. 2012年VEI 2観測記録
    2012-07-10 ~ 2012-07-10
    North Pagan
  3. 2011年VEI 2観測記録
    2011-04-23 ~ 2011-09-01
    North Pagan
  4. 2010年VEI 1観測記録
    2010-05-03 ~ 2010-08-11
    North Pagan
  5. 2009年VEI 2地質学的推定
    2009-04-15 ~ 進行中
    North Pagan
  6. 2006年VEI 1観測記録
    2006-12-04 ~ 2006-12-08
    North Pagan
  7. 1996年VEI 1観測記録
    1996-07-02 ~ 進行中
    North Pagan
  8. 1993年VEI 2観測記録
    1993-01-15 ~ 1993-11-16
    North Pagan
  9. 1992年VEI 1観測記録
    1992-04-13 ~ 1992-04-13
    North Pagan
  10. 1988年VEI ?地質学的推定
    1988-02-16 ~ 進行中
    North Pagan
  11. 1988年VEI 2観測記録
    1988-08-24 ~ 1988-10-12
    North Pagan
  12. 1987年VEI 1観測記録
    1987-09-04 ~ 1987-09-04
    North Pagan
  13. 1981年VEI 4観測記録
    1981-05-15 ~ 1985-05-01
    North Pagan (summit and north flank)
  14. 1929年VEI ?地質学的推定
    1929-07-02 ~ 1930-07-02
    South Pagan, cone within caldera
  15. 1925年VEI 2観測記録
    1925-02-16 ~ 1925-05-05
  16. 1923年VEI 3観測記録
    1923-02-16 ~ 1923-03-26
    North Pagan
  17. 1917年VEI 2観測記録
    1917-07-02 ~ 進行中
    North Pagan
  18. 1909年VEI 2観測記録
    1909-07-02 ~ 進行中
    North Pagan
  19. 1873年VEI 3観測記録
    1873-07-02 ~ 進行中
    North Pagan
  20. 1864年VEI 1観測記録
    1864-07-02 ~ 進行中
    South Pagan
  21. 1825年 (±5年)VEI 2観測記録
    1825-07-02 ~ 進行中
    North Pagan
  22. 1800年 (±50年)VEI ?地質学的推定
    1800-07-02 ~ 進行中
    North Pagan (west flank maar)
  23. 1669年VEI ?観測記録
    1669 ~ 進行中
    North Pagan
  24. 1340年 (±100年)VEI ?地質学的推定
    1340 ~ 進行中
    North Pagan (west flank maar)

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。