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Poco Ranaka

Ranakah

Lava dome · Indonesia · 2288m

A new lava dome, Anak Ranakah (center), formed in 1987 on the outer flanks of the poorly known Poco Leok caldera on western Flores Island. The new dome is located in an area without previous historical eruptions at the base of the large older lava dome, Gunung Ranakah. Anak Ranakah, seen here from the SW, is part of an arcuate group of lava domes extending westward from Gunung Ranakah.
A new lava dome, Anak Ranakah (center), formed in 1987 on the outer flanks of the poorly known Poco Leok caldera on western Flores Island. The new dome is located in an area without previous historical eruptions at the base of the large older lava dome, Gunung Ranakah. Anak Ranakah, seen here from the SW, is part of an arcuate group of lava domes extending westward from Gunung Ranakah. · Photo: Photo by Willem Rohi, 1988 (Volcanological Survey of Indonesia). · Wikimedia Commons
Type
Lava dome
Country
Indonesia
Region
Sunda & Banda / Sunda Volcanic Arc
Elevation
2288m
Coordinates
-8.637, 120.530
Last eruption
1991
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Cluster
Major rock type
Andesite / Basaltic Andesite
Geological summary

The Anak Ranakah (Child of Ranakah) lava dome was formed in 1987 in an area without previous recorded eruptions at the base of the large older lava dome of Gunung Ranakah. An arcuate group of lava domes extending about 12 km west from Gunung Ranakah to Poco Mandosawa occurs on the outer N flanks of the poorly known Poco Leok caldera on western Flores Island.

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
1987~1987 · 1 eruptions · max VEI 31991~1991 · 1 eruptions · max VEI 119871988198919901991

Detailed timeline

  1. 1991VEI 1Observed
    1991-03-16 – Ongoing
    Anak Ranakah
  2. 1987VEI 3Observed
    1987-12-28 – 1989-04-16
    Anak Ranakah

External links

⚠ For reference only. Not for emergency response.