After Effects Of Volcanoes Research Paper

Volcanos are deadly, can form on islands or mainland, and can destroy mountains and cities. Volcanos commonly form from holes in the earth containing magma. When pressure builds up in these magma chambers, they explode resulting in magma and rock catapulting out into the air. As these volcanoes repeatedly explode, they leak magma, which runs down the side of the volcano. Eventually, the lava cools and transforms into solid rock, building up the volcano to mountain size. An example of giant volcanic eruptions is the Pompeii disaster in 79AD, when Mount Vesuvius erupted and destroyed all of Pompeii. Another example includes, the 1980 eruption of Mount St. Helens in Washington state, which destroyed the whole mountain. Volcanos

A volcano is an earth hazard that occurs on faults between tectonic plates on a destructive boundary and an eruption is a natural disaster. A primary impact happens immediately after the disaster and before any response like death or collapsing or destruction of buildings. A secondary impact occurs later after the disaster, such less farm produce or a reduction in tourism. The severity of these impacts will differ considerably in a MEDC and LEDC where volcanic eruptions have taken place. These may be seen in the Mount St. Helen volcano eruption as well as in the Iceland volcanic eruption. They may also

Anpother factor that can have an impact on the level of hazard posed by a volcano is the type of plate margin on which it occurs. Volcanoes occuring at constructive plate boundaries are usually much less violent than those occuring at destructive plate boundaries. This is because the magma produced by plates moving apart is Basic, and therefoe has a low viscosity, allowing it to flow easily. The lava is produced from a central vent or fissure and erupts regularly but not usually violently. Also,constructive plate boundaries are often found under the sea and create submarine volcanoes, such as along the Mid-Atalntic ridge, so pose few threats to humans. As a result, the hazards posed by volcanoes at constructive plat eboundaries is relatively low. However, the subduction of one plate under another at destrctive plat eboundaries can form an acidic magma chamber, due to the build up of intense heat. Acidic magma is very viscous and resisitant to flow, meaning that there is often a huge build up of pressure, which can result in very violent and dangerous eruptions involving ash and pyroclastic flow. This can pose a a serious hazard. Pyroclastic flowsa are extremely dense, containing toxic gases at very high temperatures, and can move at speeds over 100km/h. The consequences of such an unpredictable hazard can be extremely seruous

The volcanoes are located where there is a divergence or convergence in the tectonic plates and bring their lava from the deepest of the terrestrial mantle. The materials and explosions of these ginates represent a constant risk in the places inhabited by the human being, nevertheless the people ususually live in these areas no matter the risk. On the other hand the volcanos can change the geology of an impressive form, or to cool the temperature of the earth, or to darken the sky. The scientific community increases its efforts to try to understand better what happens in volcanoes, however it is impossible to predict these conditions.

Imagine being on an island when all of a sudden an ear-shattering boom reverberates around you. On August 27, 1883, 10:02 in the morning, Krakatoa erupted with immense force on a modern-day Indonesia island. Almost a century later, Mount Saint Helens, located in the state of Washington, erupted at 8:30 a.m., on May 18, 1980. Although Mount Saint Helens and Krakatoa had a lot of distance from each other, they were both composite volcanoes. Composite volcanoes produce a thick lava that causes a lot of damage.

Volcanoes are one of the most destructive, yet, most beautiful things on Earth. They can make a famous city choke in its own ashes in one day, like Pompeii. Or they can turn a once damaging mountain into a graceful and peaceful home for new life, like Mount St. Helen’s. All volcanoes are unique, and no two are the same. Some erupt differently than others, some look different than others, and all are located in different spots all over the world. I learned this while completing the project and the five volcanoes I researched are examples of my discoveries. The five volcanoes I researched were Mount Hood, Mount Mageik, Long Island, Mount Muria, and Las Pilas.

The location of the volcano is also important. If it is situated on a constructive plate boundary then it is generally less explosive, and therefore poses different threats to volcanoes situated on a destructive plate boundary. The volcano may also be situated on a hotspot like in Hawaii, where the eruptions aren’t very explosive. Volcanos which aren’t explosive can pose other threats to lava flows though, such as dangerous gases being released. Like in Lake Nyos, Cameroon where 1700 people died.

A human factor that would cause differences in the hazards posed by volcanoes is settlement, which includes where people chose to live in relation to a volcano. For example, in Indonesia many people settle near Mount Merapi because of the rich and fertile soil favoured for farming. As Indonesia is a poor country many people rely on subsistence farming, therefore are willing to risk everything by settling beside a volcano. Furthermore, in the last eruption in 2010 360,000 people were displaced from their homes, meaning not only did they lose their home but also their livelihood; hundreds also lost their lives. Therefore, the hazards posed could have been minimalised if people chose to settle elsewhere.

A volcano is a mountain built when magma rises from Earth's interior to the surface of the Earth.Volcanoes erupt when the pressure of the melted rock inside becomes so high that it blows through the solid surface of volcano. This explosion leads to many economic difficulties just like it did when Mount St. Helen exploded. It is a devastating event and clouds of ash, dust, and gases flowed into the environment. These fumes can be difficult to breath in and the damage it can cause wildlife is also

Dr. Richard Waitt inform us that the eruption on May 18, 1980 surprise scientists because they had a lot of data that they collected and that data didn’t indicated that an eruption was going to come on that day. When it blast in May 18, 1980, it destroyed everything in their path. For example, a total of 57 people were killed, thousands of deer, elk, bears, and other wildlife were killed, and the eruption had cut open a 2,000-foot-wide crater in the top. The landscape was unrecognizable by geologist who had spent about two months before the explosion on May 18 working up the volcano every day. It is interesting to know that discolored rock in the valley and in the crater wall were evidence that the mountain was decaying before the eruption.

We can also understand how volcanoes collapse on other planets. This paper also shows the different factors that can make a volcanic edifice unstable. There are tests to show the effect of water on the volcanic system , This a is a great paper because it looks into all aspects of a volcano and its collapse , it shows the various factors that affect it , what happens pre and post volcanic collapse in space and on earth. Roche, O., Van Wyk de Vries, B., & Druitt, T. H. (2001).

A Volcano is a mountain or hill that has a crater running through it filled with lava, rocks, gas and hot vapour that will erupt. There are three types of volcanoes, there is the Cinder Cone volcano which is the smallest, the Shield volcano which is in most cases the biggest and the Composite volcano which can be the most deadly.

Volcanoes are formed when magma from within the Earth's upper mantle works its way to the surface. At the surface, it erupts to form lava flows and ash deposits. Over time as the volcano continues to erupt, it will get bigger and bigger.

A volcano is a vent where magma erupts when the volcano is active. They can be in a variety of shapes, from cone-shaped to craterlike. If a volcano is dormant for 10,000 years it is deemed extinct. But what forces the magma out through the crust? “Volcanoes are just a natural way that Earth and other planets have of cooling off and releasing internal heat and pressure,” explains Oregon State University. Magma is extremely hot and thus not as dense, so it will rise depending on the weight of the rocks around and above it. As it rises, the gas forms bubbles that “exert tremendous pressure,” the University

This is only a general overview of the inner workings of volcanoes and their eruptions. For more infomation, visit Volcano World -- The Premier Source of Volcano Info on the Web.