This report is a preliminary account of Mt Galunggung eruption that began in April 1982 and continued intermittently until early January 1983. After almost 63 years of quiesence, Mt Galunggung, located about 350 km souteasth of Jakarta, suddenly erupted at dawn of April 6, 1982. The explosion, accompanied by bright glows and lightning, awakened some 200,000 people living close to the volcano. A…