Assess the extent to which primary rather than secondary impacts are the more serious effects arising from volcanic eruptions. (30 marks)
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
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Due to its level of development an MEDC will most likely have money or back up to carry out a proper response scheme which is why secondary impacts in MEDCs are less serious. Another reason for there being much less secondary impacts in MEDCs is that due to the country’s higher GDP per capita, less people will live near to a volcano as they have enough money to be able to live in a place where they are less vulnerable to an earth hazard, as the area next to the volcano is less valuable in an MEDC. People in MEDCs do have a choice of where to live but in countries like Japan many people live within reach of volcanic eruptions in a dangerous area and these numbers are likely to increase as world population continues to grow. In LEDCs people often have no choice and are less aware of the risks. Therefore the primary impacts are more likely to be serious as more people in potential danger compared to an MEDC where there is less likely to be many people around in the area. However some volcanic eruptions can cause secondary impacts despite all this, the eruption of the Icelandic volcano in 2010 caused huge secondary economic impacts all over Europe due to an ash cloud. It was the largest disruption of air travel since World War Two, caused the BMW plant in Germany to close down for a month due to lack of parts and cost the European airline industry £130 million a day. This shows how in MEDCs secondary impacts can be reduced
Analyse the factors that causes differences in the hazards posed by volcanoes around the world (40 marks)
analyse the factors that cause differences in the hazards posed by volcanoes around the world (40 marks)
How did the described volcanoes in Iceland and the Philippines change the environment to lesser or greater extents?
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.
To what extent can preparedness and planning mitigate the effects of a volcanic hazard (40 marks)
Major earthquakes are a great possibility. By telling people in advance if an earthquake is going to happen will help save lives. An earthquake can also cause a tsunami which are very dangerous because the rushing waters can sweep people away and they can be severely injured or killed from the debris in the water. The waters can rush into buildings, trapping and drowning the people
The volcanic eruption of Nevada del Ruiz in Bolivia is another example of how some of the poorest people can be so badly affected by these events. The US volcanologist office warned the local authorities about the impending eruption but the authorities did not understand the seriousness of the situation and so did not warn any of the people. 28000 people died from the eruption and the secondary effects of the mudslides and lahars that formed. This lack of education of the risks of the seismic and volcanic hazards in the poorer countries often makes them much more vulnerable.
People can benefit greatly from volcanic eruptions in many ways. To illustrate, volcanoes have a variety of beneficial properties for soil. In most of lower Italy, the soil is rather meager, but in Naples, Italy, “[the] region includes Mount Vesuvius, which has experienced two major eruptions more than 10,000 years ago… [and t]he soil is so rich that farmers often plant different crops intermingled with each other to maximize the use of every square inch available” (McDonaugh 60, 61). Therefore, an abundance of crops can be grown easily and readily, and the demand for food would be met much more easily. Volcanoes can also draw in people, revealing a remarkable beauty in spite of its fiery temper. A tourist attraction in Mauna Loa, Hawaii Island
Volcanoes are in fact important because without volcanoes the atmosphere wouldn’t have its oxygen rich properties. Many of years ago, Earth’s atmosphere was swarm with rock-forming minerals of the earth 's crust. During earlier volcanic eruptions many gasses enters into the earth atmosphere. Carbon dioxide, water vapor and many other gases
Volcanos are beautiful yet discursive. They may have different effects on towns but some are similar, and some are different. Some may have an effect on both people and cities and the people's mindsets may change on their beloved homes.
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.
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.
How volcanoes affect people and environments? A volcano is a mountain or hill having a crater or vent through which lava, rock fragments, hot vapor, and gas are in. Volcanoes can change the weather. They can cause rain, thunder and lightning. Volcanoes can also have long-term effects on the climate, making the world cooler.
Volcanoes and Earthquakes are two of the most intriguing natural disasters that can occur on earth. Unlike hurricanes and tornadoes, they can awaken at almost any point in time throughout the year. These two natural disasters are also different from others because they occur on the layers of the earth itself. Volcanoes, while large to us, are actually small, conical patches of earth that spurt and ooze hot molten lava from the core, and can destroy areas of land triple their size. Earthquakes, on the other hand, are severe jolts felt on land due to the movement of earths tectonic plates. Some may describe earthquakes as being similar to riding a bike down a flight of stairs. The impact of an earthquakes can take down even the largest buildings and strongest structures. All natural disasters can have damaging effects on land, some more than others, and all can be measured or predicted in different ways. Although earthquakes and volcanoes are similar to each other, the two are still very comparable. A few of these similarities and differences include the cause of their occurrence, and how their occurrence impacts the environment.
Volcanic eruptions are a constant issue. There are around 50 -70 eruptions every year with some volcanoes erupting more than once. Around 35 people die every year from volcanic eruptions along with an average cost of damage of 98,992,000. I believe that with a little math that these numbers can go down. Issues with volcano causing so much death is more of the debris that comes out of it if we could estimate the distant that this debris could travel then we would simply need to change the areas that we build cities and how far we would need to evacuate in a sudden emergency. This will include the ideas of projectile motion, angular projectile motion, Geometrical estimations. For this example, I will be using the volcano Mount Vesuvius. This volcano is known best for the destruction of Pompeii and villages that surrounded it. This eruption works the best due to the easily known eruption and the easily measurable distances from Pompeii to the center of Mount Vesuvius.