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サバンカヤ火山

Sabancaya

成層火山 · Peru · 5960m

The Sabancaya volcanic complex consists of Sabancaya volcano proper (foreground), the older 6288-m-high Ampato volcano (background), and 6025-m Hualca Hualca volcano. Sabancaya, viewed here from the NE, is constructed on the saddle between the two older volcanoes. It is the youngest of the three Holocene volcanic centers and the only one to have erupted in historical time. An extensive 15-km-wide apron of trachytic and dacitic lava flows surrounds the 5967-m-high volcano. Records of historical eruptions date back to 1750.
The Sabancaya volcanic complex consists of Sabancaya volcano proper (foreground), the older 6288-m-high Ampato volcano (background), and 6025-m Hualca Hualca volcano. Sabancaya, viewed here from the NE, is constructed on the saddle between the two older volcanoes. It is the youngest of the three Holocene volcanic centers and the only one to have erupted in historical time. An extensive 15-km-wide apron of trachytic and dacitic lava flows surrounds the 5967-m-high volcano. Records of historical eruptions date back to 1750. · 写真: Photo by Norm Banks, 1988 (U.S. Geological Survey). · Wikimedia Commons
タイプ
成層火山
国
Peru
地域
South America Volcanic Regions / Central Andean Volcanic Arc
標高
5960m
座標
-15.787, -71.857
最終噴火
2026年
テクトニクス環境
Subduction zone / Continental crust (> 25 km)
火山地形
Composite
主要岩石
Andesite / Basaltic Andesite
地質学的概要

Sabancaya, located in the saddle NE of Ampato and SE of Hualca Hualca volcanoes, is the youngest of these volcanic centers and the only one to have erupted in historical time. The oldest of the three, Nevado Hualca Hualca, is of probable late-Pliocene to early Pleistocene age. The name Sabancaya (meaning "tongue of fire" in the Quechua language) first appeared in records in 1595 CE, suggesting activity prior to that date. Holocene activity has consisted of Plinian eruptions followed by emission of voluminous andesitic and dacitic lava flows, which form an extensive apron around the volcano on all sides but the south. Records of observed eruptions date back to 1750 CE.

Wikipedia の要約

英語版の要約

Sabancaya is an active stratovolcano in the Andes of southern Peru, about 70 kilometres (43 mi) northwest of Arequipa. It is considered part of the Central Volcanic Zone of the Andes, one of the three distinct volcanic belts of the Andes. The Central Volcanic Zone includes a number of volcanoes, some of which, like Huaynaputina, have had large eruptions, and others, such as Sabancaya and Ubinas, have been active in historical time. Sabancaya forms a volcanic complex together with Hualca Hualca to the north and Ampato to the south and has erupted andesite and dacite. It is covered by a small ice cap, which leads to a risk of lahars during eruptions.

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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
6600 BCE~6312 BCE · 1件 · 最大 VEI ?3725 BCE~3437 BCE · 1件 · 最大 VEI 01163~1450 · 1件 · 最大 VEI ?1738~2025 · 12件 · 最大 VEI 36600 BCE4587 BCE2287 BCE275 BCE1738

詳細タイムライン

  1. 2025年VEI ?観測記録
    2025-09-13 ~ 2026-03-25
  2. 2016年VEI 3観測記録
    2016-11-06 ~ 2025-04-06
    Sabancaya crater
  3. 2015年VEI 1観測記録
    2015-03-08 ~ 2015-12-12
    Summit crater
  4. 2014年VEI 1観測記録
    2014-08-05 ~ 2014-12-27
  5. 2003年VEI 2観測記録
    2003-07-30 ~ 2003-07-31
  6. 2000年VEI 2観測記録
    2000-04-16 ~ 2000-10-29
  7. 1990年VEI 3観測記録
    1990-05-28 ~ 1998-09-16
  8. 1988年VEI 1観測記録
    1988-06-22 ~ 1988-10-16
  9. 1987年VEI 2地質学的推定
    1987-08-07 ~ 進行中
  10. 1986年VEI 1観測記録
    1986-12-16 ~ 進行中
  11. 1784年VEI ?観測記録
    1784-07 ~ 進行中
  12. 1750年VEI ?観測記録
    1750 ~ 進行中
  13. 1350年 (±150年)VEI ?地質学的推定
    1350 ~ 進行中
  14. 紀元前 3490年 (±40年)VEI 0地質学的推定
    BCE 3490 ~ 進行中
  15. 紀元前 6600年VEI ?地質学的推定
    BCE 6600 ~ 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。