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Phreatic eruption at the summit of Mount St. Helens, Washington, in the spring of 1980. A phreatic eruption, also called a phreatic explosion, ultravulcanian eruption or steam-blast eruption, [1] occurs when magma heats ground water or surface water. The extreme temperature of the magma (anywhere from 500 to 1,170 °C (930 to 2,100 °F)) causes ...
A magma chamber is a large pool of liquid rock beneath the surface of the Earth. The molten rock, or magma, in such a chamber is less dense than the surrounding country rock, which produces buoyant forces on the magma that tend to drive it upwards. [1] If the magma finds a path to the surface, then the result will be a volcanic eruption ...
Pikuniku is a puzzle and adventure game where the player must control the protagonist, Piku, through levels and solve puzzles to progress. The majority of puzzles involve kicking and pushing objects onto switches to open doors and access rooms, allowing the player to proceed through the level.
The tsunamis swept along the coast, damaging buildings and boats. The explosions resumed the night of 5 May. The following morning, parts of the eruption plume became incandescent, signifying that the character of the eruption had changed. The phreatic eruptions had finally given way to magmatic eruptions as magma reached the surface. These ...
The IMOCA ("Open 60"), is a 60ft (18.288 m) development class monohull sailing yacht governed by the International Monohull Open Class Association (IMOCA). [1] The class pinnacle event are single or two person ocean races, such as the Route du Rhum and the Vendée Globe and this has been intimately linked to design development within the class.
Resurgent dome. The caldera of Lake Toba, with a resurgent dome, forming Samosir Island. In geology, a resurgent dome is a dome formed by swelling or rising of a caldera floor due to movement in the magma chamber beneath it. Unlike a lava dome, a resurgent dome is not formed by the extrusion of highly viscous lava onto the surface, but rather ...
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The Campanian Ignimbrite eruption (CI, also CI eruption) was a major volcanic eruption in the Mediterranean during the late Quaternary, classified 7 on the Volcanic Explosivity Index (VEI). [1][2] The event has been attributed to the Archiflegreo volcano, the 12-by-15-kilometre-wide (7.5 mi × 9.3 mi) caldera of the Phlegraean Fields, located ...