Galunggung

Mount Galunggung is an active stratovolcano in West Java, Indonesia, around 80km southeast of the West Java provincial capital, Bandung . Mount Galunggung is part of the Sunda Arc extending through Sumatra, Java and Bali, which has resulted from the subduction of the Australian plate beneath the Eurasian plate.For the first time since 1982 after eruptions finished and conditions seemed normal, on February 12, 2012, the status was upgraded to Alert based on changes in conditions.On 28 May 2012, it was lowered from 2 back to 1 Hazardous eruption of 1982The last major eruption on Galunggung was in 1982, which had a Volcanic Explosivity Index of 4 and indirectly killed 18 people in traffic accidents and by starvation. This eruption also brought the dangers of volcanic ash to aviation to worldwide attention, after two Boeing 747 passenger jets flying downwind of the eruption suffered temporary engine failures and damage to exterior surfaces, both planes being forced to make emergency landings at Jakarta airport.One, a British Airways aircraft traveling from Kuala Lumpur, Malaysia to Perth, Australia carrying 240 passengers, accidentally entered the ash cloud during night in June 1982 150km downwind of the volcano. All four engines failed due to the buildup of volcanic ash, and the aircraft descended for 16 minutes, losing 7500m of its 11500m altitude, until the crew managed to restart the engines and land in Jakarta.