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Mount Sirung

Sirung

Complex volcano · Indonesia · 1347m

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. · Photo: Photo by L.D. Reksowirogo, 1972 (Volcanological Survey of Indonesia). · Wikimedia Commons
Type
Complex volcano
Country
Indonesia
Region
Sunda & Banda / Sunda Volcanic Arc
Elevation
1347m
Coordinates
-8.497, 124.131
Last eruption
2021
Tectonic setting
Subduction zone / Crustal thickness unknown
Landform
Composite
Major rock type
Andesite / Basaltic Andesite
Geological summary

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.

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
1852~1869 · 1 eruptions · max VEI 21886~1903 · 1 eruptions · max VEI 21920~1937 · 2 eruptions · max VEI 21937~1953 · 2 eruptions · max VEI 21953~1970 · 5 eruptions · max VEI 22004~2021 · 3 eruptions · max VEI 218521886193719702004

Detailed timeline

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

External links

⚠ For reference only. Not for emergency response.