Phreatic or hydrothermal eruption example
How can the answer be improved?Hydrothermal eruption: An eruption ejecting at least some solid material and whose energy derives solely from heat loss and phase changes in a convecting hot water or steamdominated hydrothermal system. Phreatic eruption: An eruption which is caused by heating and flashing of water produced when magma comes into contact with water but only country rock or overburden is ejected (i. e. no juvenile phreatic or hydrothermal eruption example
be possible for a purely hydrothermal eruption or for a phreatic eruptioninvolving the same amount of magma. Juvenile magmatic material may or may not be identifiable. One of the clearest examples of an historic magmatichydrothermal eruption was the1886 eruption at Rotomahana (Simmonset 1993). In practice, unless there was some distinctive
Phreatic eruptions are amongst the most common eruption types on earth. They might be precursory to another type of volcanic eruption but often they stand on their one. Despite being the most common eruption type, they also are one of the most diverse eruptions, in appearance as well as on eruption Phreatic eruption. Phreatic eruptions are steamdriven explosions that occur when water beneath the ground or on the surface is heated by magma, lava, hot rocks, or new volcanic deposits (for example, tephra and pyroclasticflow deposits). The intense heat of such material (as high as 1, 170 C for basaltic lava) may cause water to boilphreatic or hydrothermal eruption example Towards forecasting phreatic eruptions: Examples from Hakone volcano and some global equivalents. Although there is no historical record of eruption prior to 2015, frequent and intense earthquake swarms have occurred beneath the volcano. The 2015 eruption was a small phreatic eruption and only 100 tons of fine ash was released.