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小田萌山

Etorofu-Yakeyama [Grozny Group]

複成火山 · Japan - administered by Russia · 1158m

The Yakeyama (Grozny) andesitic lava dome is seen from the N with lava flows descending into Lopasnoye lake in the foreground. The Etorofu-Yakeyama (Ivan Grozny) volcano group in central Iturup Island includes multiple Holocene lava domes.
The Yakeyama (Grozny) andesitic lava dome is seen from the N with lava flows descending into Lopasnoye lake in the foreground. The Etorofu-Yakeyama (Ivan Grozny) volcano group in central Iturup Island includes multiple Holocene lava domes. · 写真: Photo by A. Korablev, 1993 (Institute of Marine Geology and Geophysics, Yuzhno-Sakhalin). · Wikimedia Commons
タイプ
複成火山
国
Japan - administered by Russia
地域
Northwestern Pacific Volcanic Regions / Kuril Volcanic Arc
標高
1158m
座標
45.012, 147.871
最終噴火
2013年
テクトニクス環境
Subduction zone / Intermediate crust (15-25 km)
火山地形
Composite
主要岩石
Andesite / Basaltic Andesite
地質学的概要

The Etorofu-Yakeyama (Ivan Grozny) complex is located in the center of Iturup Island. It has a 3-3.5 km diameter caldera open to the south, where a large extrusive andesitic dome was emplaced. Several other lava domes of Holocene age were constructed to the NE; extrusion of these domes has constricted a former lake in the northern side of the caldera to an extremely sinuous shoreline. Recorded eruptions, the first of which took place in 1968, have been from the central Yakeyama (Grozny) dome.

Wikipedia の要約

英語版の要約

Grozny Group is a complex volcano located in the central part of Iturup Island, Kuril Islands, controlled by Russia, and claimed by Japan.

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
1968~1973 · 2件 · 最大 VEI 11973~1977 · 2件 · 最大 VEI 21986~1991 · 1件 · 最大 VEI 22009~2013 · 2件 · 最大 VEI 219681977199120002009

詳細タイムライン

  1. 2013年VEI 2観測記録
    2013-02-16 ~ 2013-04-04
    Etorofu-Yake-yama / Ivan Grozny
  2. 2012年VEI 2観測記録
    2012-08-16 ~ 2012-08-25
    Etorofu-Yake-yama / Ivan Grozny
  3. 1989年VEI 2観測記録
    1989-05-03 ~ 1989-08-05
    Ivan Grozny
  4. 1973年VEI 1観測記録
    1973-01-16 ~ 1973-01-16
    Ivan Grozny
  5. 1973年VEI 2観測記録
    1973-05-16 ~ 1973-05-17
    Ivan Grozny (N flank of cent. dome)
  6. 1970年VEI 1観測記録
    1970-07-02 ~ 進行中
    Ivan Grozny
  7. 1968年VEI 1観測記録
    1968-02-16 ~ 1968-02-16
    Ivan Grozny

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。