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Mount Sirung

Sirung

Vulcano complesso · Indonesia · 1347 m

The steaming summit caldera of Gunung Sirung volcano is seen here from the eastern caldera rim. Sirung volcano lies at the NE end of a 14-km-long line of volcanic centers forming a peninsula at the southern end of Pantar Island. A lava dome (center) at the western side of the caldera forms the summit of Gunung Sirung volcano; other cones along the chain to the SE increase in height. The 2-km-wide summit caldera has been the source of small phreatic eruptions during the 20th century.
The steaming summit caldera of Gunung Sirung volcano is seen here from the eastern caldera rim. Sirung volcano lies at the NE end of a 14-km-long line of volcanic centers forming a peninsula at the southern end of Pantar Island. A lava dome (center) at the western side of the caldera forms the summit of Gunung Sirung volcano; other cones along the chain to the SE increase in height. The 2-km-wide summit caldera has been the source of small phreatic eruptions during the 20th century. · Foto: Photo by L.D. Reksowirogo, 1972 (Volcanological Survey of Indonesia). · Wikimedia Commons
Tipo
Vulcano complesso
Paese
Indonesia
Regione
Sunda-Banda Volcanic Regions / Sunda Volcanic Arc
Altitudine
1347 m
Coordinate
-8.497, 124.131
Ultima eruzione
2021
Contesto tettonico
Subduction zone / Crustal thickness unknown
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

Sirung is located at the NE end of a volcanic massif with multiple centers that extends 14 km NE from the southern end of Pantar Island. The volcano is truncated by a 2-km-wide caldera whose floor often contains one or more small lakes. Much of the volcano is constructed of basaltic lava flows, and the Gunung Sirung lava dome forms the high point on the caldera's western rim. A number of phreatic eruptions occurred from vents within the caldera during the 20th century. Forested Gunung Topaki, the high point of the volcanic chain, has a small summit crater and lies ~3.5 km SW of the active crater area.

Sintesi da Wikipedia

Riassunto in inglese

Mount Sirung is an active volcano complex volcano located on Pantar Island in the Alor archipelago of the eastern Indonesian province of Nusa Tenggara Timor. The crater rim can be reached by an easy hike from the village of Kakamauta. Inside the crater is a large sulphurous crater lake and several active steam vents. The last major eruption occurred 1970, and regular gas and clastic eruptions have occurred since 2004. A small eruption beginning May 12, 2012 triggered an evacuation of an area within a 1.5 km radius of the caldera.

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Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
1852~1869 · 1 eruzioni · VEI max. 21886~1903 · 1 eruzioni · VEI max. 21920~1937 · 2 eruzioni · VEI max. 21937~1953 · 2 eruzioni · VEI max. 21953~1970 · 5 eruzioni · VEI max. 22004~2021 · 3 eruzioni · VEI max. 218521886193719702004

Cronologia dettagliata

  1. 2021VEI 1Osservata
    2021-07-21 – 2021-07-21
  2. 2015VEI 1Osservata
    2015-07-07 – 2015-07-08
    vents within the caldera
  3. 2012VEI 2Osservata
    2012-05-08 – 2012-05-12
    Vents within the caldera
  4. 1970VEI 2Osservata
    1970-07-02 – In corso
  5. 1965VEI 1Osservata
    1965-05-07 – 1965-05-18
  6. 1965VEI 1Osservata
    1965-11-02 – 1965-11-02
  7. 1964VEI 1Osservata
    1964-02-08 – 1964-10-05
  8. 1960VEI 2Osservata
    1960-03-13 – In corso
  9. 1953VEI ?Osservata
    1953-06-16 – In corso
  10. 1947VEI 2Osservata
    1947-04 – 1947-05
  11. 1934VEI 2Osservata
    1934-06-14 – 1934-07-15
  12. 1927VEI 2Stima geologica
    1927 – In corso
  13. 1899VEI 2Stima geologica
    1899-03 – 1899-04
  14. 1852VEI 2Stima geologica
    1852 – In corso

Link esterni

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