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Krenitsyn Volcano

Tao-Rusyr Caldera

Stratovolkan · Russia · 1272 m

Krenitzyn Peak is a post-caldera cone that forms a 4-km island rising above the rim of 7.5-km-wide Tao-Rusyr caldera. It has a 350 m summit crater and a large shallow crater (left center) on the upper NE flank. The small dark mass along the eastern shoreline (right-center) is a lava dome that was emplaced in 1952. Kal'tsevoe lake fills a caldera that formed about 7,500 years ago during one of the largest Holocene eruptions in the Kuril Islands.
Krenitzyn Peak is a post-caldera cone that forms a 4-km island rising above the rim of 7.5-km-wide Tao-Rusyr caldera. It has a 350 m summit crater and a large shallow crater (left center) on the upper NE flank. The small dark mass along the eastern shoreline (right-center) is a lava dome that was emplaced in 1952. Kal'tsevoe lake fills a caldera that formed about 7,500 years ago during one of the largest Holocene eruptions in the Kuril Islands. · Foto: Photo by Oleg Volynets (Institute of Volcanology, Petropavlovsk). · Wikimedia Commons
Tipe
Stratovolkan
Negara
Russia
Wilayah
Northwestern Pacific Volcanic Regions / Kuril Volcanic Arc
Ketinggian
1272 m
Koordinat
49.340, 154.725
Letusan terakhir
1952
Kondisi tektonik
Subduction zone / Intermediate crust (15-25 km)
Bentuk lahan
Composite
Batuan utama
Andesite / Basaltic Andesite
Ringkasan geologi

The southern half of Onekotan Island in the northern Kuril Islands contains the 7.5-km-wide Tao-Rusyr caldera, which is mostly filled by Kal'tsevoe lake. The basaltic-to-andesitic caldera formed about 7,500 years ago, in which the large post-caldera Krenitsyn Peak grew, building a 4-km-wide island in the NW part of the lake that rises above the caldera rim. A 350-m-wide, 100-m-deep crater truncates the peak, and a large crater is located on the upper NE side. An eruption in 1952 formed a small lava dome in an explosion crater along the eastern shore of the island.

Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
5550 BCE~5300 BCE · 1 letusan · VEI maks. 61702~1952 · 1 letusan · VEI maks. 35550 BCE3800 BCE1799 BCE49 BCE1702

Garis waktu rinci

  1. 1952VEI 3Teramati
    1952-11-12 – 1952-11-19
    Krenitsyn Peak (east flank)
  2. 5550 SM (±75 tahun)VEI 6Perkiraan geologi
    BCE 5550 – Berlangsung
    Tao-Rusyr

Tautan eksternal

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