As the world’s population grows‚ more and more people are living in potentially dangerous volcanic areas. Volcanic eruptions continue to happen and they can cause great threats to life and property. Predicting a volcano’s eruption accurately will lead to more saved lives and ensure our safety. When a volcano erupts it produces many threats. Some of these threats are lava flows‚ falling ash‚ and they may even cause other threats like mud and debris flows‚ or they can cause the climate to change
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article from News and Views discusses the observation and analysis of submarine volcanic eruptions. Volcanism underwater is unalike volcanism on land due to the differing qualities of water and air. Air is not as dense as water; the properties of air allow for larger eruptions than those that occur underwater (Mitchell 444). Pressure on the ocean floor does not allow water or gasses to escape from lava. This causes the eruption to have less of an impact underwater than it would if it were on land. Water’s
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1.Introduction: Historical accounts of what is now known as the volcanic eruptions on the Greek island of Santorini‚ previously known as Thera‚ suggest that the estimated 1600 BC eruptions may be one of the most catastrophic natural disasters in human history.1 Conflicting beliefs of the timing of the event have been made. The debate of the traditional 1500 BC‚ and the earlier date emanate from the finding of an olive branch buried beneath lava‚ which radiocarbon dating has estimates is from 1627-1600
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Thera‚ the volcanic caldera in Greece that violently erupted 3500 years ago spawning the myth of Atlantis‚ and wiping out most of the Minoan civilization‚ is deforming. Scientists suggest that this caldera‚ a crater-like volcano that has collapsed in the past‚ may erupt again‚ making the people of the island vulnerable. The deformation could cause many disasters such as tsunamis‚ earthquakes‚ and obviously eruptions. Scientists argue whether the volcanic caldera unrest is actually a threat to the
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of Volcanic Eruptions on Climate Introduction Recently there has been a lot of research in the field of climate change‚ and much of it is focused on anthropogenic affects on climate. However‚ there has also been a great deal of research focused on natural Earth processes and how they affect the climate (Robock 2000). One natural process which significantly impacts climate is volcanic eruptions. Volcanic eruptions affect the climate of the earth in many ways (Zielinski et al 1997). Volcanic ash
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Introduction There are over 20 active volcanos left in the world today. Have you ever wondered or learned about what causes a volcano? Volcanic eruptions can be a huge deal for the environment and the people around it. What causes do volcanos have on the environment and what cause does it have on the people? Well the truth is‚ the causes of active volcanos there are today‚ do have effects on its surroundings. What is a volcano‚ and what causes it to erupt? Volcanoes occur at weak points in the
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GAC013 Assessment Event2: Case Study Investigation Compare and Contrast Tsunamis and Volcanic Eruption Forecasting Student’s Name: Sissy Wang Student ID#: SHSA16374 Teacher: Kenny Due Date: 14th December 2011 Word Count: 1‚194 Table of Contents 1. Abstract Page 2 2. Introduction Page 2 3. Methodology Page 4 4. Finding Page 4 5. Discussion Page 6 6. Conclusions and Recommendations Page 6 7. Reference Page 7 Abstract With the development of science
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Volcanic eruptions have caused some of the worst disasters in the world. They can wipe out entire cities and kill thousands of people. The name of volcano comes from Roman term. It derives from Vulcan which is the name of Roman fire god. Romans believed that Vulcan lived on a volcanic Italian coast. Romans called the island Vulcano. According to scientists‚ volcanic eruptions are divided in to four basic groups. They are commonly known as Hawaiian‚ Strombolian‚ Vulcanian‚ and Peleean. The term of
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What causes a volcanic eruption? When a part of the earth’s upper mantle or lower crust melts‚ magma forms. A volcano is essentially an opening or a vent through which this magma and the dissolved gases it contains are discharged. Although there are several factors triggering a volcanic eruption‚ three predominate: the buoyancy of the magma‚ the pressure from the exsolved gases in the magma and the injection of a new batch of magma into an already filled magma chamber. What follows is a brief description
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remaining from a massive volcanic eruption of Mt Undara which occurred 190‚000 years ago. During the Cenozoic‚ there was wide spread igneous activity in Eastern Australia. Volcanism commenced in the late Cretaceous (approximately 70 Ma) and continued through the Cenozoic. The cenozoic is the current geological era. It began 66 million years ago and continues today. About 23.3 km³ of lava flowed from the Mt Undara volcano at an estimated rate of 1000 m³ a second. This lava flowed about over 160km to the
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