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- Volcanoes are formed when magma (liquid rock) trapped underneath the Earth’s crust rises to the surface and escapes through cracks. The space for the magma to leave is very small and, as it travels, pressure builds, meaning it escapes violently when released.
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Augustine Volcano (Alaska) during its eruptive phase on January 24, 2006. A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. The process that forms volcanoes is called volcanism.
Volcanoes are formed when magma (liquid rock) trapped underneath the Earth’s crust rises to the surface and escapes through cracks. The space for the magma to leave is very small and, as it...
- Hunga Tonga-Hunga Ha'apai, 2022 (VEI 5.7) The Kingdom of Tonga, located in the South Pacific, experienced one of the biggest eruptions in recorded history in 2022.
- Huaynaputina, 1600 (VEI 6) This peak was the site of South America's largest volcanic eruption in recorded history, in the year 1600. The explosion sent mudflows as far as the Pacific Ocean, 75 miles (120 km) away, and appears to have affected the global climate.
- Krakatoa, 1883 (VEI 6) The rumblings of Krakatoa (also spelled Krakatau) in the weeks and months of the summer of 1883 finally climaxed with a massive explosion on April 26 and 27.
- Santa María, 1902 (VEI 6) The Santa María eruption in 1902 was one of the biggest volcanic explosions of the 20th century. Prior to the dramatic eruption, the volcano in Guatemala had been quiescent for 500 years.
Oct 7, 2024 · 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.
Aug 2, 2022 · When the Hunga Tonga-Hunga Ha’apai volcano erupted on Jan. 15, it sent a tsunami racing around the world and set off a sonic boom that circled the globe twice. The underwater eruption in the South Pacific Ocean also blasted an enormous plume of water vapor into Earth’s stratosphere – enough to fill more than 58,000 Olympic-size swimming ...
A volcano is an opening in the Earth’s crust that allows magma, hot ash and gases to escape. Magma is molten rock - rock that is so hot it has turned into liquid. When magma reaches the surface...
Aug 21, 2024 · A volcanic eruption is an eruption of molten rock, hot rock fragments, and hot gases through a volcano, which is a vent in a planet’s or satellite’s crust. Volcanic eruptions can cause disastrous loss of life and property.
