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Grozny Ridge

Etorofu-Yakeyama [Grozny Group]

Vulcano complesso · Japan - administered by Russia · 1158 m

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. · Foto: Photo by A. Korablev, 1993 (Institute of Marine Geology and Geophysics, Yuzhno-Sakhalin). · Wikimedia Commons
Tipo
Vulcano complesso
Paese
Japan - administered by Russia
Regione
Northwestern Pacific Volcanic Regions / Kuril Volcanic Arc
Altitudine
1158 m
Coordinate
45.012, 147.871
Ultima eruzione
2013
Contesto tettonico
Subduction zone / Intermediate crust (15-25 km)
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

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.

Sintesi da Wikipedia

Riassunto in inglese

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 · Leggi l'articolo completo →

Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
1968~1973 · 2 eruzioni · VEI max. 11973~1977 · 2 eruzioni · VEI max. 21986~1991 · 1 eruzioni · VEI max. 22009~2013 · 2 eruzioni · VEI max. 219681977199120002009

Cronologia dettagliata

  1. 2013VEI 2Osservata
    2013-02-16 – 2013-04-04
    Etorofu-Yake-yama / Ivan Grozny
  2. 2012VEI 2Osservata
    2012-08-16 – 2012-08-25
    Etorofu-Yake-yama / Ivan Grozny
  3. 1989VEI 2Osservata
    1989-05-03 – 1989-08-05
    Ivan Grozny
  4. 1973VEI 1Osservata
    1973-01-16 – 1973-01-16
    Ivan Grozny
  5. 1973VEI 2Osservata
    1973-05-16 – 1973-05-17
    Ivan Grozny (N flank of cent. dome)
  6. 1970VEI 1Osservata
    1970-07-02 – In corso
    Ivan Grozny
  7. 1968VEI 1Osservata
    1968-02-16 – 1968-02-16
    Ivan Grozny

Link esterni

⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.