Volcano - Wikipedia The most common perception of a volcano is of a conical mountain, spewing lava and poisonous gases from a crater at its summit; however, this describes just one of the many types of volcano The features of volcanoes are varied The structure and behaviour of volcanoes depend on several factors
Three dead after volcano erupts on Indonesian island Three people hiking on Indonesia's Mount Dukono have died after the volcano erupted on Friday morning Videos and pictures of the eruption show the volcano, located on North Maluku island, spewing
Volcano | Definition, Types, Facts | Britannica Volcano, vent in the crust of Earth or another planet or satellite, from which issue eruptions of molten rock, hot rock fragments, and hot gases The term volcano can also refer to the landform created by the accumulation of solidified lava and volcanic debris near the vent
About Volcanoes | U. S. Geological Survey - USGS. gov Molten rock below the surface of the Earth that rises in volcanic vents is known as magma, but after it erupts from a volcano it is called lava Magma is made of molten rock, crystals, and dissolved gas—imagine an unopened bottle of soda with grains of sand inside
About Volcanoes - U. S. National Park Service Volcanic processes consist of all natural volcano-related activity that happens on volcanic landforms Volcanic eruptions range from effusive emissions of lava flows to highly explosive eruptions that can devastate large areas and send ash columns high into the stratosphere
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