Phreatic eruption
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A phreatic eruption, also called a phreatic explosion, ultravulcanian eruption or steam-blast eruption, occurs when magma heats ground water or surface water. The extreme temperature of the magma caus
Phreatic eruption at the summit of Mount St. Helens, Washington, in the spring of 1980
Plinian eruption
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Plinian eruptions or Vesuvian eruptions are volcanic eruptions characterized by their similarity to the eruption of Mount Vesuvius in 79 AD, which destroyed the ancient Roman cities of Herculaneum and
Phreatic eruption
…an explosion of steam, water, ash, rock, and volcanic bombs. At Mount St. Helens in Washington state, hundreds of steam explosions preceded the 1980 Plinian eruption of the volcano. A less intense geothermal event may result in a mud volcano. Phreatic eruptions typically include steam and rock fragments; the inclusion…
1822 artist's impression of the eruption of Mount Vesuvius in 79, depicting what the AD 79 eruption may have looked like, by the English geologist George Julius Poulett Scrope. Lightning is depicted around the rising column of ash and gas.
A stone pine, the type of tree used by Pliny the Younger to describe the eruption
Eruption cloud from Redoubt Volcano on 21 April 1990 as viewed to the west from the Kenai Peninsula, more than 60 km (37 mi) from the volcano's summit
April 2015, subplinian eruption of Calbuco