what happens when a volcano erupts
transcript. This pressure pushes on weak spots in the earth's surface, or crust, causing magma to exit the volcano . Learn interesting facts about how volcanoes erupt. Learn the basics of volcanism, how volcano eruptions work, and the different types of volcano eruptions. Find out more about volcano eruption and improve your knowledge with DK Find Out, to help you learn. If you are close to one when it erupts these gases can kill in less than a minute.

If magma is thick and sticky, gases cannot escape easily. Ash from volcanoes can do more than darken the skies, hurt air quality, contaminate water, coat highways, cover yards and ground airplanes. If the volcano erupts stay away from the lava, even one that seems dry or solid, never walk on it and avoid being near rivers and canals as they are good conductors of magma.Avoid inhalation of poisonous gases.Volcanoes emit a series of deadly gases. This means that when a shield volcano erupts, the lava is extremely fast and can cover large areas very quickly. If the volcano erupts stay away from the lava, even one that seems dry or solid, never walk on it and avoid being near rivers and canals as they are good conductors of magma.Avoid inhalation of poisonous gases.Volcanoes emit a series of deadly gases. How Do Volcanoes Erupt? 3)Hot LAVA, gases, and ROCK flow from the volcano. The rock fragments fall back to earth as dust, ash, bombs, blocks, cinder and pummice. What causes a volcano to erupt for kids? What happens when a dormant volcano erupts? 4)Lava COOLS, hardens, and becomes part of the LAND. A dormant volcano often gives little to no warning before erupting. The explosivity of an eruption depends on the composition of the magma. Magma underneath earth's crust is constantly going through a convection cycle: it is warmed by the core and rises, cools and sinks back down only to be heated once more. Some volcanic eruptions are explosive and others are not. How It Happens | Volcanic Eruptions The eruption of a volcano can be one of the planet’s most destructive events — spewing huge amounts of rock, gas and ash that can kill people. Yellowstone volcano: USGS reveals what would happen if Yellowstone volcano erupted YELLOWSTONE NATIONAL PARK houses a huge supervolcano. A good example is the eruptions at Hawaii’s volcanoes. When this type of magma erupts, it flows out of the volcano. If you are close to one when it erupts these gases can kill in less than a minute. A volcano erupts when pressure pushes molten rock up through cracks in Earth's crust onto … Volcanic activity is classified by how often a volcano erupts. Active volcanoes erupt constantly. These rocks blown out of a volcano are called pyroclastic rocks. After a volcano erupts, it can damage structures, change landscapes, kill plants or animals, hurt air quality, affect the water and cause climate change. Lava flows rarely kill people because they move slowly enough for people to get out of their way. Volcanic eruptions happen when gas bubbles inside magma, or hot liquid rock, expand and cause pressure to build up. Some of the most famous examples of shield volcanoes make up the islands of Hawaii. Flowing hot lava can incinerate, bury and bulldoze things in its path but at least is usually moving slowly enough for humans to get out of its way. What happens when a volcano erupts? What happens when a volcano erupts? Generally, a dormant volcano that erupts catches everyone by surprise. A good example is the eruptions at Hawaii’s volcanoes.

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