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Volcanoes
The
country is predominantly mountainous with
some 400 volcanoes, of which 100 are active.
Mountains higher than 9,000 feet are found
on the islands of Sumatra (Mt. Leuser and
Mt. Kerinci), Java (Mt. Gede, Mt. Tangkubanperahu,
Mt. Ciremai, Mt. Kawi, Mt. Kelud, Mt. Semeru
and Mt. Raung), Sulawesi (Mt. Lompobatang
and Mt. Rantekombala), Bali (Mt. Batur and
Mt. Agung), Lombok (Mt. Rinjani) and Sumbawa
(Mt. Tambora). The highest mountain is the
perpetually snow-capped Mandala Top (15,300
feet) in the Jaya Wijaya mountain range
of Irian Jaya.
Recorded
eruptions of volcanoes over the last two
decades are:Sumatra - Dempo 1973, and 1974,
Merapi 1978, Sorik Merapi 1989, Kerinci
1990; Sunda Strait Anak Krakatau 1978 and
1979; Java - Bromo 1972, Merapi 1972 and
1976, Raung 1978, Semeru 1978 and 1979,
Butak Petarangan (Sinila and Sigludar) 1979;
Paluweh - Rokatenda 1978, Galunggung 1982,
Slamet 1988, Kelud 1990; Sulawesi - Lokon
1978, 1979 and 1991, Siau - Karangetang
1978 and 1979, Colo 1983, Soputan 1989;
Maluku - Dukono 1978, Gamalama Kie Besi
1987, Banda Api 1988; ast Nusa Tenggara
- Lewotobi Laki-laki 1990.
