- VolcanoMandalagan volcano in northern Negros Island, Central Philippines, is an eroded dominantly andesitic-dacitic volcanic complex. It is formed by 7 volcanic edifices and has at least 5 craters of up to 2 km in diameter, some of which are probably calderas. The age of its last eruptions, which produced a thin basalt lava flow, is unknown. Mandalagan has very active fumaroles in at least 11 locations. One fumarole field is particularly powerful. It emits a high-temperature (106 degrees C) plume to 30 m height accompanied by a roaring noise like a high-pressure geothermal borehole. Mandalagan volcano is part of the northern Negros volcanic arc which also contains Mt Silay (1534 m), Mt Kanlaon (2465 m). Mt Mandalagan volcanoes.
Volcano type complex volcano normal or dormant Location Philippines Summit elevation 1885 m / 6,184 ft Mandalagan volcano eruptions unknown Typical eruption style explosive