Saturday, Apr 06, 2013
VSI has lowered the alert level of the volcano down to 2 out of 4 (Waspada) after Raung had been on orange since October. The seismic activity has gradually decreased and currently, there is only degassing, sometimes intense, from the crater. [more]
Monday, Jan 07, 2013
Raung volcano in East Java has picked up strombolian activity it seems. According to a press article, the Center for Volcanology and Geological Hazard Mitigation (PVMBG) reported that Raung volcano was seen emitting gray ash clouds on Sunday (6 Jan) morning. The plumes rose about 300 m above the crater. At night, "fire" could be seen around the crater and there were occasional thundering explosion sounds. ... [more]
Raung volcanoRaung in Eastern Java in the Ijen Plateau is one of Java's most active volcanoes, with frequent explosive eruptions every few years. Raung is a massive stratovolcano constructed SW of the rim of the Ijen caldera. Its 3332-m-high, unvegetated summit of Gunung Raung is truncated by a dramatic steep-walled, 2-km-wide caldera where all of the frequent historical eruptions took place.
Background:A prehistoric collapse of Gunung Gadung on the west flank produced a large debris avalanche that traveled 79 km from the volcano, reaching nearly to the Indian Ocean. Raung contains several centers constructed along a NE-SW line, with Gunung Suket and Gunung Gadung stratovolcanoes being located to the NE and west, respectively.
Source: adapted from GVP (Global Volcanism Program)