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isola di Zavodovski

Zavodovski

Stratovulcano · United Kingdom · 551 m

Steam clouds rise from fumaroles near the summit of Mount Curry, on Zavodovski Island, in this aerial view from the south. Icebergs lie off the shores of the approximately 4.5-km-wide island, the northernmost of the South Sandwich Islands. The eastern coast (right) comprises lava flows and is low-lying, contrasting with the cliffs of the west (left). Two young eruptive fissures extend NE from the summit toward craters on the east flank and were the source of a lava platform extending toward Pungent Point (right).
Steam clouds rise from fumaroles near the summit of Mount Curry, on Zavodovski Island, in this aerial view from the south. Icebergs lie off the shores of the approximately 4.5-km-wide island, the northernmost of the South Sandwich Islands. The eastern coast (right) comprises lava flows and is low-lying, contrasting with the cliffs of the west (left). Two young eruptive fissures extend NE from the summit toward craters on the east flank and were the source of a lava platform extending toward Pungent Point (right). · Foto: Photo by HMS Endurance (courtesy of John Smellie, British Antarctic Survey). · Wikimedia Commons
Tipo
Stratovulcano
Paese
United Kingdom
Regione
Antarctic-Scotia Volcanic Regions / South Sandwich Volcanic Arc
Altitudine
551 m
Coordinate
-56.300, -27.570
Ultima eruzione
2016
Contesto tettonico
Subduction zone / Oceanic crust (< 15 km)
Forma vulcanica
Composite
Roccia principale
Basalt / Picro-Basalt
Sintesi geologica

The 5-km-wide Zavodovski Island, the northernmost of the South Sandwich Islands, consists of a single basaltic stratovolcano with two cones on the east side. Mount Curry, the island's summit, lies west of the center of the island, which is more eroded on that side. Two fissures extend NE from the summit towards the E-flank craters, and a lava platform is located along the eastern coast. The volcano was producing abundant emissions when observed in 1819 by the explorer Bellingshausen. A landing party in 1830 also reported strong emissions along with a fresh lava field on the east side from which pumice was being eroded into the ocean.

Sintesi da Wikipedia

L'isola di Zavodovski è un'isola vulcanica disabitata situata nell'Oceano Atlantico meridionale; fa parte dell'arcipelago delle isole Traversay, politicamente parte del territorio della Georgia del Sud e Isole Sandwich Australi, uno dei Territori d'oltremare britannici.

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
1819~1839 · 3 eruzioni · VEI max. 21898~1918 · 1 eruzioni · VEI max. 11996~2016 · 1 eruzioni · VEI max. 118191858191819571996

Cronologia dettagliata

  1. 2016VEI 1Osservata
    2016-03-30 – 2016-06-15
    Summit crater
  2. 1908VEI 1Stima geologica
    1908-11 – In corso
  3. 1830VEI 1Stima geologica
    1830-09 – In corso
  4. 1823VEI 1Stima geologica
    1823 – In corso
  5. 1819VEI 2Osservata
    1819-12 – In corso

Link esterni

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