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クロノツキー山

Kronotsky

成層火山 · Russia · 3482m

Kronotsky stratovolcano Is located between the Pacific Ocean and Lake Kronotsky, Kamchatka's largest lake. The flanks are dissected by radial valleys up to 200 m deep. Weak phreatic eruptions took place during the 20th century. Kronotsky is seen here from the SW with the caldera rim of neighboring Krasheninnikov volcano in the foreground.
Kronotsky stratovolcano Is located between the Pacific Ocean and Lake Kronotsky, Kamchatka's largest lake. The flanks are dissected by radial valleys up to 200 m deep. Weak phreatic eruptions took place during the 20th century. Kronotsky is seen here from the SW with the caldera rim of neighboring Krasheninnikov volcano in the foreground. · 写真: Photo by Yuri Doubik (Institute of Volcanology, Petropavlovsk). · Wikimedia Commons
タイプ
成層火山
国
Russia
地域
北西太平洋 / Eastern Kamchatka Volcanic Arc
標高
3482m
座標
54.753, 160.533
最終噴火
-3350年
テクトニクス環境
Subduction zone / Continental crust (> 25 km)
火山地形
Composite
主要岩石
Basalt / Picro-Basalt
地質学的概要

The symmetrical Kronotsky stratovolcano on the Kamchatka Peninsula lies between the Pacific Ocean and Lake Kronotsky. Extensive lava flows on the south side of the volcano dammed the Listvenichnaya River to form the lake. A steep summit ridge forms the peak above flanks that are dissected by radial valleys up to 200 m deep. Small cinder cones are present on the lower N and S flanks, 5-10 km from the summit. Lavas have been dominantly basaltic, with the exception of the small basaltic andesite summit lava extrusion and a flank lava flow. Fumarolic activity has been reported from near the summit. Gorbach et al. (2024) found scoria horizons associated with explosive eruptions dated to ~5,200-5,400 and ~6,000 years BP.

Wikipedia の要約

英語版の要約

Kronotsky is a major stratovolcano on the Kamchatka Peninsula, Russia. It is located in Kronotsky Nature Reserve to the east of Lake Kronotskoye. It has a particularly symmetrical conical shape, comparable to Mount Fuji in Japan and to Mount Mayon in the Philippines. The summit crater is plugged by a volcanic neck, and the summit itself is ice-capped. It exhibits the classic radial drainage pattern, extending downward from its crater. Kronotsky is considered to be one of the most scenic volcanoes in Kamchatka. In the 20th century, the volcano had low activity, with occasional weak phreatic eruptions. Its latest eruption started on October 4, 2025, with an ash cloud up to 9 km (5.6 mi) high.

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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
4050 BCE~3980 BCE · 1件 · 最大 VEI 33420 BCE~3350 BCE · 1件 · 最大 VEI 24050 BCE3910 BCE3700 BCE3560 BCE3420 BCE

詳細タイムライン

  1. 紀元前 3350年 (±100年)VEI 2地質学的推定
    BCE 3350 ~ 進行中
  2. 紀元前 4050年VEI 3地質学的推定
    BCE 4050 ~ 進行中

外部リンク

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