Volcano Calendar 2019: We're proud to present our 2019 volcano calendar: 13 different and attractive images of volcanoes, volcanic landscapes and phenomena taken during volcano tours over the past few years.
The Volcano Adventure Guide: Excellent information and background for anyone wishing to visit active volcanoes safely and enjoyably. The book presents guidelines to visiting 42 different volcanoes around the world.
Mandalagan 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.
Intraplate volcanism: A third tectonic setting where volcanism occurs is believed to be the result of mantle plumes and not directly related to plate boundaries. So called hot spot volcanoes fall into this category.
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