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Lewotobi

Stratovolcano · Indonesia · 1703m

Lewotobi Lakilaki (left) and Lewotobi Perempuan (right) rise above forests on their western flanks. They were constructed along a NW-SE-trending line. Both volcanoes have erupted during historical time but Lakilaki has been more active.
Lewotobi Lakilaki (left) and Lewotobi Perempuan (right) rise above forests on their western flanks. They were constructed along a NW-SE-trending line. Both volcanoes have erupted during historical time but Lakilaki has been more active. · Photo: Photo by Joël Boyer, 2004 (L.A.V.E.) · Wikimedia Commons
Type
Stratovolcano
Country
Indonesia
Region
Sunda-Banda Volcanic Regions / Sunda Volcanic Arc
Elevation
1703m
Coordinates
-8.542, 122.775
Last eruption
2026
Tectonic setting
Subduction zone / Crustal thickness unknown
Landform
Composite
Major rock type
Andesite / Basaltic Andesite
Geological summary

The Lewotobi edifice in eastern Flores Island is composed of the two adjacent Lewotobi Laki-laki and Lewotobi Perempuan stratovolcanoes (the "husband and wife"). Their summits are less than 2 km apart along a NW-SE line. The conical Laki-laki to the NW has been frequently active during the 19th and 20th centuries, while the taller and broader Perempuan has had observed eruptions in 1921 and 1935. Small lava domes have grown during the 20th century in both of the summit craters, which are open to the north. A prominent cone, Iliwokar, occurs on the E flank of Perampuan.

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
1675~1710 · 1 eruptions · max VEI 31851~1886 · 6 eruptions · max VEI 21886~1921 · 4 eruptions · max VEI 31921~1956 · 4 eruptions · max VEI 31956~1991 · 4 eruptions · max VEI 21991~2026 · 7 eruptions · max VEI 216751745185119211991

Detailed timeline

  1. 2026VEI ?Observed
    2026-03-03 – 2026-03-25
  2. 2023VEI 2Observed
    2023-12-23 – 2025-10-18
  3. 2014VEI 2Observed
    2014-10-06 – 2014-10-06
  4. 2003VEI 2Observed
    2003-05-30 – 2003-09-01
    Lewotobi Lakilaki
  5. 2002VEI 1Observed
    2002-10-12 – 2002-10-12
    Lewotobi Lakilaki
  6. 1999VEI 2Observed
    1999-03-31 – 1999-07-01
    Lewotobi Lakilaki
  7. 1991VEI 1Observed
    1991-05-11 – 1992-12-31
    Lewotobi Lakilaki
  8. 1990VEI 1Observed
    1990-01-28 – 1990-06-16
    Lewotabi Lakilaki
  9. 1971VEI 2Observed
    1971-01-16 – Ongoing
    Lewotobi Lakilaki
  10. 1970VEI 2Observed
    1970-07-02 – Ongoing
    Lewotobi Lakilaki
  11. 1968VEI 2Observed
    1968-11-28 – 1969-02-02
    Lewotobi Lakilaki
  12. 1939VEI 2Observed
    1939-12-17 – 1940-04-21
    Lewotobi Lakilaki
  13. 1935VEI 2Observed
    1935-12 – 1935-12-25
    Lewetobi Perempuan
  14. 1932VEI 3Observed
    1932-05-23 – 1933-12-26
    Lewotobi Lakilaki
  15. 1921VEI 2Observed
    1921-01-01 – 1921-12-20
    Lewotobi Perempuan
  16. 1914VEI 2Observed
    1914-06-29 – Ongoing
    Lewotobi Lakilaki
  17. 1909VEI 2Observed
    1909-01-08 – 1910-05-26
    Lewotobi Lakilaki
  18. 1907VEI 3Observed
    1907-09-28 – 1907-10-30
    Lewotobi Lakilaki
  19. 1889VEI 2Observed
    1889 – Ongoing
    Lewotobi Lakilaki
  20. 1869VEI 2Observed
    1869-07-07 – 1869-07-27
    Lewotobi Lakilaki
  21. 1868VEI 2Observed
    1868-07-13 – Ongoing
    Lewotobi Lakilaki
  22. 1868VEI 2Observed
    1868-12-15 – Ongoing
    Lewotobi Lakilaki
  23. 1865VEI 2Observed
    1865-05-04 – Ongoing
    Lewotobi Lakilaki
  24. 1861VEI 2Observed
    1861-05-04 – 1861-05-18
    Lewotobi Lakilaki
  25. 1859VEI ?Geological estimate
    1859-07 – Ongoing
    Lewotobi Lakilaki
  26. 1675 (±25 yrs)VEI 3Observed
    1675 – Ongoing
    Lewotobi Lakilaki

External links

⚠ For reference only. Not for emergency response.