Natural Disasters: Volcanic Eruption

The volcano considers one of the most dangerous natural disasters that occur in the world, especially in some countries like united states, Indonesia, Russia and ext. These examples have a high rate of volcanos, most likely you have heard or read about a volcano, and volcanos come in different sizes, shapes and types, moving to what is volcano and what does it mean?

A mountain with a wide, circular hole at the top through which gasses, steam and dust are or have been forced out of lava = hot liquid rock or a volcano is an opening on a planet or moon’s surface that allows warmer air to escape from its interior than its surroundings, that triggers an explosion as this material escapes, an explosion, bringing debris high into the atmosphere, may be explosive or it may be smoother with soft material flows. moving to our next focusing point which is what are the parts of volcano and how does volcano form and work? The volcano has 6 main parts which:

  1.  Ash Plume
  2. Central Vent
  3. Volcanic Ash Rain
  4. Layers of Basaltic Lava
  5. Earth's Crust
  6. Magma Chamber

How does volcano work?

A well of lava shapes when weight, temperature, and other common strengths thrust magma out of a magma chamber (a huge, underground pool of fluid shake) until it emits as magma on the surface of the soil or as a bubbling spout beneath the sea. When the liquid shake (magma) comes to the planet\'s surface—whether on arrive or at the foot of the ocean—it promptly starts to cool and harden. Over thousands or millions of a long time, the numerous layers of cooled magma that have ejected from a spring of gushing lava may shape a steep-sided cone around its vent. Most of the planet's most popular volcanoes share this cone-like appearance. The arrangement of volcanoes has contributed to the arrangement of numerous of the planet\'s shifted scenes. Volcanoes frame most commonly at the merged or dissimilar boundaries of structural plates. A few frames on mid-ocean edges, where structural plates are spreading separated. Others frame close subduction zones, where one structural plate is sinking into the earth\'s mantle underneath another structural. moving to the three main volcanos starting with Composite Volcanoes : Composite volcanoes, sometimes known as stratovolcanoes, are steep sided cones formed from layers of ash and [lava] flows. The eruptions from these volcanoes may be a pyroclastic flow rather than a flow of lava. A pyroclastic flow is a superheated mixture of hot steam, ash, rock and dust. A pyroclastic flow can travel down the side of a volcano at very high speeds with temperatures over 400 degrees Celsius. Composite volcanoes can rise over 8000 feet, when composite volcanoes eject, they are hazardous and posture a danger to adjacent life and property. Emissions are hazardous due to the thick, profoundly thick magma that's delivered by composite cone volcanoes. This viscous magma features a part to do with why they are formed the way they are. The thick magma cannot travel distant down the slant of the spring of gushing lava some time recently it cools. Composite volcanoes are more often than not found at dangerous plate edges. Cases of composite volcanoes incorporate Mount Fuji (Japan), Mount St Helens (USA) and Mount Pinatubo (Philippines).

Moving to the next type which is: Shield Volcanoes. Shield volcanoes are moo with delicately slanting sides and are shaped from layers of magma. Emissions are regularly non-explosive. Shield volcanoes create quick streaming liquid [magma] that can stream for numerous miles. Ejections tend to be visit but moderately tender. In spite of the fact that these emissions devastate property, passing or harm to people seldom happens, Cano Shield volcanoes are more often than not found at valuable boundaries and now and then at volcanic hotspots. Cases of shield volcanoes incorporate Mount Kilauea and Mauna loa on Hawaii, moving to the third type: Dome (Acid Lava Cone: Corrosive [magma] is much thicker than [magma] which streams from shield volcanoes. Arch volcanoes have much more extreme sides than shield volcanoes. Usually since the magma is thick and sticky. It cannot stream exceptionally distant some time recently to cools and hardens. A case is Puy de Arch within the Auvergne locale of France which final emitted over 1 million a long time back. we know that lava (magama) consider a main part that causes a volcano so what does magma means: Magma is extremely hot liquid and semi-liquid rock located under Earth’s surface.

Earth has a layered structure that consists of the inner core, outer core, mantle, and crust. Much of the planet’s mantle consists of magma. This magma can push through holes or cracks in the crust, causing a volcanic eruption. When magma flows or erupts onto Earth’s surface, it is called lava. Like solid rock, magma is a mixture of minerals. It also contains small amounts of dissolved gases such as water vapor, carbon dioxide, and sulfur. The high temperatures and pressure under Earth’s crust keep magma in its fluid state.

There are 3 essential varieties of magma: volcanic rock, andesitic, and rhyolitic, every of which contains a particular mineral composition. All varieties of stone have a important rate of silicon oxide. volcanic rock stone is tall in press, magnesium, and metallic element however moo in metal and atomic number 11. It ranges in temperature from virtually 1000oC to 1200oC (1832oF to 2192oF). Andesitic stone has direct sums of those minerals, with a temperature extend from virtually 800oC to 1000oC (1472oF to 1832oF). Rhyolitic stone is tall in metal and atomic number 11 however low in press, magnesium, and metallic element. It happens among the temperature extend of roughly 650oC to 800oC (1202oF to 1472oF). each the temperature and mineral substance of stone influence however effortlessly it streams.