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Indonesia · Stratovolcano

Dempo

Type
Stratovolcano
Elevation
3142m
Last eruption
2025
Dempo
Photo: Febi andika valendra · CC BY-SA 4.0 · Wikimedia Commons
Type
Stratovolcano
Country
Indonesia
Region
Sunda & Banda / Sunda Volcanic Arc
Elevation
3142m
Coordinates
-4.016, 103.121
Last eruption
2025
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Andesite / Basaltic andesite
Geological summary

Dempo is a stratovolcano that rises above the Pasumah Plain of SE Sumatra. The andesitic complex has two main peaks, Gunung Dempo and Gunung Marapi, constructed near the SE rim of a 3-km-wide amphitheater open to the north. The high point of the older Gunung Dempo crater rim is slightly lower, and lies at the SE end of the summit complex. The taller Marapi cone was constructed within the older crater. Remnants of seven craters are found at or near the summit, with volcanism migrating WNW over time. The active 750 x 1,100 m active crater cuts the NW side of the Marapi cone and contains a 400-m-wide lake at the far NW end. Eruptions recorded since 1817 have been small-to-moderate explosions that produced local ashfall.

Eruption history

33 recordedGlossary
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
1817~1838 · 1 eruptions · max VEI 21838~1859 · 2 eruptions · max VEI 21859~1879 · 1 eruptions · max VEI 21879~1900 · 7 eruptions · max VEI 21900~1921 · 2 eruptions · max VEI 21921~1942 · 8 eruptions · max VEI 21963~1983 · 3 eruptions · max VEI 21983~2004 · 1 eruptions · max VEI 12004~2025 · 8 eruptions · max VEI 218171859192119632004

Detailed timeline

  1. 2025VEI 2Observed
    2025-08-07 – 2025-08-29
  2. 2024VEI 1Observed
    2024-05-27 – 2024-05-31
  3. 2024VEI 1Observed
    2024-11-23 – 2025-02-02
  4. 2023VEI 2Observed
    2023-07-25 – 2023-08-21
  5. 2022VEI 1Observed
    2022-05-31 – 2022-05-31
  6. 2017VEI 1Observed
    2017-11-09 – 2017-11-09
    Summit crater
  7. 2009VEI 1Observed
    2009-01-01 – 2009-01-01
  8. 2006VEI 1Observed
    2006-09-25 – 2006-09-25
  9. 1994VEI 1Observed
    1994-10-16 – 1994-10-16
  10. 1974VEI 2Observed
    1974-02-26 – 1974-10-20
  11. 1973VEI 2Observed
    1973-01-24 – 1973-01-25
  12. 1964VEI 2Observed
    1964-02-14 – 1964-02-14
  13. 1940VEI 2Observed
    1940-07-16 – end unknown
  14. 1939VEI 2Observed
    1939-07-18 – 1939-07-30
  15. 1939VEI 2Observed
    1939-12-19 – 1940-02-21
  16. 1936VEI 2Observed
    1936-11-26 – 1936-11-27
  17. 1934VEI 2Observed
    1934-01-24 – 1934-04-25
  18. 1926VEI 2Observed
    1926-04-22 – 1926-04-24
  19. 1923VEI 1Observed
    1923-05-19 – 1923-05-19
  20. 1921VEI 1Observed
    1921-04-16 – 1921-04-16
  21. 1908VEI 2Observed
    1908-02-16 – 1908-02-17
  22. 1905VEI 0Observed
    1905-07-02 – end unknown
  23. 1900VEI 2Observed
    1900-06-04 – 1900-06-04
  24. 1900VEI 2Observed
    1900-10-26 – 1900-10-27
  25. 1895VEI 2Observed
    1895-07-02 – 1895-09-30
  26. 1884VEI 2Observed
    1884-06-16 – 1884-07-16
  27. 1881VEI 2Observed
    1881-02-16 – end unknown
  28. 1881VEI 2Observed
    1881-12-16 – 1881-12-16
  29. 1880VEI 2Observed
    1880-05-16 – end unknown
  30. 1879VEI 2Observed
    1879-05-18 – end unknown
  31. 1853VEI 2Observed
    1853-01-01 – end unknown
  32. 1839VEI 2Observed
    1839-07-02 – end unknown
  33. 1817VEI 2Observed
    1817-12-31 – end unknown

Nearby volcanoes

External links

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