Underwater Volcano (other)
Underwater volcano may refer to: *Subaqueous volcano, a volcano that forms under a lake *Submarine volcano, a volcano that forms under an ocean See also * Subglacial volcano A subglacial volcano, also known as a glaciovolcano, is a volcanic form produced by subglacial eruptions or eruptions beneath the surface of a glacier or ice sheet which is then melted into a lake by the rising lava. Today they are most ...

Subaqueous Volcano
A subaqueous volcano is a volcano formed beneath freshwater and which never builds above lake level. They are commonly in the form of gently sloping tuff cones, although they can sometimes have an , such as White Horse Bluff in the Wells Gray-Clearwater volcanic field of east-central British Columbia, Canada. Subaqueous volcanoes can be compared to subaerial volcanoes which are formed and erupt on land surface, or under the air. The major differences of volcanic eruptions are due to the effects of pressure, heat capacity or conductivity of water, the presence of steam and water rheology. The thermal conductivity of water is about 20 times that of air and steam has a thermal conductivity nearly 50 times that of water. Subaqueous volcanoes are most commonly formed in oceans, but can also form in lakes, rivers and subglacial lakes. In improving our understanding of subaqueous volcanoes, it is important to consider the differences between the characteristics of modern and ancient ap ...
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Submarine Volcano
Submarine volcanoes are underwater vents or fissures in the Earth's surface from which magma can erupt. Many submarine volcanoes are located near areas of tectonic plate formation, known as mid-ocean ridges. The volcanoes at mid-ocean ridges alone are estimated to account for 75% of the magma output on Earth.Martin R. Speight, Peter A. Henderson, "Marine Ecology: Concepts and Applications", John Wiley & Sons, 2013. . Although most submarine volcanoes are located in the depths of seas and oceans, some also exist in shallow water, and these can discharge material into the atmosphere during an eruption. The total number of submarine volcanoes is estimated to be over 1 million (most are now extinct) of which some 75,000 rise more than 1 km above the seabed. Only 119 submarine volcanoes in Earth's oceans and seas are known to have erupted during the last 11,700 years. Hydrothermal vents, sites of abundant biological activity, are commonly found near submarine volcanoes. Effe ...
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