the risk they pose differs around the world. One factor that heavily influences how hazardous a volcano is‚ is the plate boundary that it lies on. Subductive plate boundaries tend to produce much more violent eruptions than conservative or constructive margins. Subductive boundaries occur where two plates (one continental and one oceanic) are moving toward each other. The denser plate‚ the oceanic‚ is forced underneath the continental. As it subducts into the asthenosphere‚ it begins to turn back
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The volcano we modeled was Erta Ale. Erta Ale is a active shield volcano. This volcano is located in Ethopia on the continent Africa. This volcano is on two divergent plates. It is the Afar rift that is causing the volcano to continue to be active today. The two plates that are responsible for this are the Nubian and the Somalian plates. Considering this is an active volcano‚ it does produce slow moving magma. The volcano doesn’t have a huge eruption it is small and builds up in the crater and causes
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towards providing that plate techtonics theory is valid. Discuss the extent to which you agree with the statement. (40 marks) Throughout close analysing we can see patterns in the occurance of seismic and volcanic activity worlwide. These patterns can be used as clues to help discover why such events occur‚ and it is clear that both volcanic and seismic activity is most abundant on and around plate margins. However despite there being a clear link between he events and the plate boundries does this
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Natural Disasters: An examination of the causes‚ effects‚ and options available to mitigate natural disasters‚ such as earthquakes‚ volcanic eruptions‚ landslides‚ subsidence‚ flooding‚ severe weather‚ and meteorite impacts. Natural Disaster Information: 1. Natural Disasters in General 2. Earthquakes 3. Volcanic Eruptions 4. Tsunami 5. Landslides 6. Floods 7. Weather Related Disasters 8. Meteorite Impacts NATURAL DISASTERS IN GENERAL: Natural disasters This being my senior
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processes were plate tectonics‚ glaciation‚ and weathering & erosion. One example of plate tectonics in CT is the Connecticut River Valley. The Connecticut River Valley was also formed by glaciation but first came the plate tectonics. When the plates divided it created a rift valley‚ (When the land on two sides rises but the middle land lowers or stays the same.) rift valleys can be formed by earthquakes and some other natural forces as well. This is only one example of plate tectonics. Another example
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issues- proximity to lowland coast‚ ability to adapt to change‚ socioeconomic effects‚ impacts within a community‚ difference in rich and poor‚ urban and rural‚ ability to cope with a disaster‚ willingness of people to aid 3. Physical issues- type of plate boundary‚ frequency of events 4. Case studies: Volcanos: Nyiragongo‚ Mount Etna; Seismicity: Japan‚ Haiti A hazard is a physical or man-made event which adversely affects human life‚ business‚ and events. Volcanic hazards may include lava‚ pyroclastic
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Earthquake activity in Pakistan is mainly concentrated in the north and western sections of the country‚ along the boundary of the Indian plate and the Iranian and Afghan micro-plates. The Chaman Fault runs along Pakistan’s western frontier with Afghanistan from Kalat‚ in the northern Makran range‚ past Quetta and then on to Kabul‚ Afghanistan. A fault also runs along the Makran coast and is believed to be of the same nature as the West Coast fault along the coast of Maharashtra‚ India. An active
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winds through all major ocean basin like the seams on a baseball. Ridges vary in width from 600 miles to 2500 miles. The mid-ocean ridge represents an area where‚ lithospheric plates move apart and new crust is created by magma pushing up from the mantle . Also‚ the mid-ocean ridge system is an example of a divergent plate boundary. 4.) Briefly describe the process of continental rifting. Where is it occurring today? As crust is pulled apart‚ rifts are formed and eventually become large enough
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example of a regular volcanic eruption caused by a ‘Hawaiian’ Volcano is Kīlauea which has been continuously erupting since January 1983‚ and has causes no loss of life. Looking at the proprieties of the magma explains why eruptions along subduction plate boundaries product more ‘hazardous’ eruptions‚ and this is one of the reasons that a volcano becomes more hazards because the more viscous a material is the more pressure build up will occur within the volcano‚ causing more explosive eruptions. Explosive
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In this essay I will tell you about the main parts of a volcano and it’s origin. The first main part I will tell you about is the magma chamber. A magma chamber is a large pool of molten rock‚ also called magma‚ sitting underneath the Earth’s crust. The magma chamber can be more than three miles below the Earth’s surface and the magma waits there for the pressure and gases to become too much to stay stable. The magma in the magma chamber is less tense than the mantle surrounding it‚ so it moves toward
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