Ranakah Volcano | John Seach


Flores, Indonesia

8.62 S, 120.52 E
summit elevation 2247 m
Lava domes

Ranakah volcano is located in western Flores. Ranakah volcano appeared to be inactive until 1987 when it erupted.

2011 Unrest
Between January and 24th August 2011 there was a background level of 1-2 shallow volcanic earthquakes per day at the volcano. On 24th August 2011 there were 10 shallow volcanic earthquakes recorded and 6 on 25th August. There was a risk that volcanic earthquakes could disrupt the lava dome causing pyroclastic flows similar to 1988. On 26th August 2011 the alert status was raised to level 2 (out of a maximum 4). People were advised to avoid the summit area.

1987-89 Eruptions
A phreatic eruption occurred on 28th December 1987. On 11th January 1988 emissions reached a height of 8000 m accompanied by pyroclastic flows. On 28th December 1988 explosions sent ash to 2000 m above the crater. By the 6th of January 1999 20,000 people evacuated from a 5 km zone around the volcano. A lava plug then appeared in the crater by 11th January.

Further reading
Neumann van Padang, M., 1951. Catalogue of the Active Volcanoes of the World, Including Solfatara Fields, Indonesia.

Ranakah Volcano Eruptions

1991, 1987-89.