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Global Volcanism Program | Image GVP-06353

An ash column rises above Tompaluan crater between Lokon and Empung volcanoes in November 1991.  Explosive eruptions began on 17 May 1991, continuing at a rate of 7-16 a week.  About 10,000 people evacuated following a 25 October explosion that produced 0.015 cu km tephra and was accompanied by a pyroclastic flow that traveled 1.5 km to the east.  The number of explosions decreased in November and December, and the eruption ended in January.  A small lava plug appeared in the crater after the main eruption.  Photo by Syamsul Rizal, 1991 (Volcanological Survey of Indonesia).

An ash column rises above Tompaluan crater between Lokon and Empung volcanoes in November 1991. Explosive eruptions began on 17 May 1991, continuing at a rate of 7-16 a week. About 10,000 people evacuated following a 25 October explosion that produced 0.015 cu km tephra and was accompanied by a pyroclastic flow that traveled 1.5 km to the east. The number of explosions decreased in November and December, and the eruption ended in January. A small lava plug appeared in the crater after the main eruption.

Photo by Syamsul Rizal, 1991 (Volcanological Survey of Indonesia).


Lokon-Empung