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Essay On Tsunami 2004

Essay on Tsunami The Natural Disaster - PreserveArticles.com Essay on Tsunami The Natural Disaster - PreserveArticles.com
Essay on Tsunami The Natural Disaster. Tsunami is a Japanese name for 'harbour waves' generally called tidal waves but actually tsunami has nothing to do ...

Essay On Tsunami 2004

The main reasons for the recent bhuj earthquake of2001 are sea floor spreading of indian ocean at the rate of 5 cm per year, gradual northward movement of indian plate and reactivated faults below the surface. This belt accounts for about 65 per cent of the total earthquakes of the world. The earthquakes associated with the eastern coastal margins of asia and the island arcs and festoons (kamchatka, sakhalin, japan, philippines) are caused due to the collision of the pacific and asiatic plates and consequent vulcanicity.

The andaman and nicobar group of islands were only 128 km (80 miles) away from the epicenter (simeulue) and the east coasts of india were about 1920 km (1200 miles) away from the epicenter. These plates are constantly moving in relation to each other due to thermal convective currents originating deep within the earth. The sad tale of the destruction of mexico city due to the earthquake of 1985 has already been described.

The great tsunamis caused by the lisbon earthquake (portugal) of the year 1755 generated about 12 m high sea waves which damaged most parts of lisbon city and killed 30,000 to 60,000 people. Uttar kashi (uttaranchal) earthquake of 1991 and latur-kilari quake (maharashtra) of 1993 (india) flattened many buildings. All these processes occur so rapidly that the equilibrium of the concerned crustal surface is suddenly disturbed and hence earth tremors are caused.

Richter scale) submarine earthquake followed by massive submarine landslides generated 30m high tsunami killing thousands of people living along the lagoon. For example, the earthquakes of new madrid, charleston, boston, tang-shan, koyna etc. The weaves measured around 10m high killing more than 10, 000 precious lives.

Examples, 1872 earthquake and 1906 earthquake of california (usa), 1923 earthquake of sagami bay (japan), 2001 earthquake of gujarat etc. This website includes study notes, research papers, essays, articles and other allied information submitted by visitors like you. The severe earthquake of san fransisco (usa), which occurred on april 18, 1906, caused widespread fires in several parts of the city.

The intensity and magnitude of such earthquakes depend on the intensity and magnitude of volcanic eruptions. Here mountain building, faulting and violent volcanic eruptions (central explosive type of eruptions) cause severe and disastrous earthquakes having the focus at the depth up to 700 km. Similarly, the dam on subansiri river broke in and resultant flash flood submerged an area of 770 square kilometres. The place of the origin of an earthquake is called focus which is always hidden inside the earth but its depth varies from place to place. Two major earthquakes of bihar-nepal border in 19 can explain the impact of earthquake disasters on human structures and human lives.


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Short Paragraph on Tsunami in India Earthquakes and volcanic eruptions that cause the sea floor to move abruptly resulting in sudden displacement of ocean ...

Essay On Tsunami 2004

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Essay On Tsunami 2004 In the early hours of the morning of. Within no time the villages and towns were flattened, high rise buildings collapsed, many villages and towns became heaps of debris, communication and power lines were completely disrupted, transport system was thrown out of gear and settlements became ruins. It may be pointed out that the intensity of earthquake has been positively correlated with the levels of water in the reservoirs. Severe earth tremors and resultant vibrations caused by severe earthquakes result in the deformation of ground surface because of rise and subsidence of ground surface and faulting activity. The strong vibrations caused by severe earthquakes strongly shake the buildings and thus strong oscillations cause severe fires in houses, mines and factories because of overturning of cooking gas cylinders, contact of live electric wires, churning of blast furnaces, displacement of other electric and fire- related appliances, The east pacific, and the other oceanic ridges.
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    Zone iii of moderate damage risk represents the areas of southern and south-eastern rajasthan, most of madhya pradesh, maharashtra and karnataka, southern bihar(jharkhand), northern and north-western orissa etc. Severe earth tremors and resultant vibrations caused by severe earthquakes result in the deformation of ground surface because of rise and subsidence of ground surface and faulting activity. Two major earthquakes of bihar-nepal border in 19 can explain the impact of earthquake disasters on human structures and human lives. The east pacific, and the other oceanic ridges, where plates separate. The enormous mass of debris flow covered a distance of 15 km within few minutes and buried many buildings and human structures of yungay town and killed about 25,000 people.

    Artificial or man-induced earthquakes or anthropogenic earthquakes are caused by human activities such as pumping of water and mineral oil from underground aquifers and oil reserves respectively, deep underground mining, blasting of rocks by dynamites for constructional purposes (e. Earthquakes of high magnitude and deep focus are caused along the convergent or destructive plate boundaries because of collision of two convergent plates and consequent subduction of one plate boundary along the benioff zone. Mid-continental belt is also known as mediterranean belt or alpine-himalayan belt which represents the collision or subduction zones of continental plates. Earthquake epicenters are also aligned along the transform faults, where plates slide past each other. In fact, earth tremors are major precursor events of possible volcanic eruption in immediate future in any region.

    The loss of human lives caused by earthquakes has been enumerated in the preceding section on the classification of earthquakes based on human casualities (see also tables 10. The land area measuring 24 km in length was raised upward because of tectonic movements. Highly hazardous earthquakes causing human deaths ranging between 51,000 and 1,00,000 occurred in 1268 (in silicia, asia minor, death toll, 60,000), in 1667 (in shemaka, caucasia, death toll 60,000), in 1693 (catania, italy, 93,000 deaths), in 1693 (naples, italy, 93,000 deaths), in 1932 (kansu, china, human deaths, 70,000), in 1935 (quetta, baluchistan, death toll, 60,000), in 1970 (chimbote, peru, 67,000 deaths), in 2001 (bhuj, gujarat, 50,000-1,00,000 death) etc. March 9, 1957, earthquake of the magnitude of 8. According to reid the underground rocks are elastic like rubber and expand when stretched and pulled. The best example of tsunami induced by violent volcanic eruption is from krakatao eruption which occurred in 1883. If we look at the past seismic history of gujarat, it appears that a severe earthquake occurs every 30 years e. This tectonic movement caused 10 m rise in the oceanic bed which suddenly displaced immense volune of water causing killer tsunami. The tsunamis are long waves (with longer wavelengths of 100 km or more) which travel at the speed of hundreds of kilometers per hour but are of shallow in depth in deeper oceans and seas. The devastating earthquake generated 30 to 40 m high tsunamis waves which killed 36,000 people in the coastal areas of java and sumatra.

    A tsunami warning system (TWS) is used to detect tsunamis in advance and issue warnings to prevent loss of life and damage to property. It is made up of two equally ...

    Essay on Earthquakes: Top 5 Essays on Earthquakes - Geography...

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    Examples, kamakura earthquake of japan of 1293 a. If we look at the world distribution of earthquakes (fig. Uttar kashi earthquake of october 20, 1991 and chamoli earthquake of 29 march, 1999 (all in uttaranchal of india) are latest examples. The 1950 assam earthquake, 1934 bihar earthquake and 2001 bhuj earthquake (gujarat) of india were caused mainly by faulting. As a result of this, the impact of tsunamis is less over the ocean and more near the coast where they cause large-scale devastations.

    The huge masses of falling ice dislodged thousands of tonnes of rock mass from the said mountain and thus was generated a gigantic debris flow down the slope of huascaran mountain travelling at the speed of 320 km per hour Buy now Essay On Tsunami 2004

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    Though the plains of west bengal comes under the zone of least damage risk but the devastating severe earthquake of kolkata of 11 october, 1737, killing 300,000 people, puts a question mark against this concept. This tectonic movement caused 10 m rise in the oceanic bed which suddenly displaced immense volune of water causing killer tsunami. Plutonic earthquakes are infact deep-focus earthquakes which occur at greater depths. Thus, the earthquakes cause more damages in the areas of unconsolidated ground than their counterparts in the regions of solid structures and bedrocks. Maharashtra, dis proved this old connotation and made us believe that no part of the earth is immune from seismic events Essay On Tsunami 2004 Buy now

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    Richter scale, include 10,700 human deaths, landslides and slumping in an area of 250 km length and 60 km width, ruptures and faults in the ground surface etc. Similarly, the californian earthquake of april 18, 1906, was caused due to the formation of 640 km long san andreas fault. Consequently, severe fire broke out which claimed the lives of 38,000 people out of total fatalities of 1,63,000 caused by the earthquake through various processes. The earthquake caused by violent volcanic eruption of karakatoa in 1883 caused enormous tsunamis which generated 36. Normally, moderate earthquakes are caused along the constructive plate boundaries because the rate of rupture of the crust and consequent movement of plates away from the mid-oceanic ridges is rather slow and the rate of upwelling of lavas due to fissure flow is also slow Buy Essay On Tsunami 2004 at a discount

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    Richter scale, generated a pacific-wide tsunami of 16 m height and adversely affected hawaii islands. Moderate earthquakesfoci are located at the depths from the ground surface (0 km) to 50 km, (ii) intermediate earthquakes-seismic foci at the depths between 50 km and 250 km and (iii) deep focus earthquakes-seismic foci at the depths between 250 km and 700 km. An earthquake becomes hazard and desaster only when it strikes the populated area. Creation of transform faults along the conservative plate boundaries explains the occurrence of severe earthquakes of california (usa). The following are the significant tsunamis in the second half of the 20th century and 21st century april 1,1946, generated by aleutian earthquake of the magnitude of 7 Buy Online Essay On Tsunami 2004

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    The intensity and magnitude of such earthquakes depend on the intensity and magnitude of volcanic eruptions. It has become apparent after the discussion of the causes of seismic events that there is wide range of variation in the nature and magnitude of earthquakes. Each earthquake differs from the other and thus it becomes difficult to classify all the earthquakes into certain categories. The asiatic plate is moving southward whereas the indian plate is moving northward and hence the northern margin of the indian plate is being subducted below the asiatic plate. The zone of very high damage risk of kutch region of gujarat registered most devastating killer earthquake on jan.

    The plain seismic region is a zone of comparatively moderate intensity Buy Essay On Tsunami 2004 Online at a discount

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    The centres (foci) of these earthquakes are generally located within the depths ranging from 240 km to 670 km. Besides, these zones are also the areas of strong volcanic activity. The western marginal zones of north and south americas are represented by rockies and andes folded mountain chains respectively. These tectonic events caused by plate movements cause earthquakes in the northern and north-eastern parts of india. The speed of the wave in the oceans depends upon the depth of water.

    Even the earthquakes of assam are also included in this zone. Two biggest oil refineries of turkey were completely devastated due to fire caused by the killer earthquake of august 17, 1999 (7. The kutch earthquake of june 16, 1819 generated strong tsunamis which submerged the coastal areas Essay On Tsunami 2004 For Sale

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    The himalayan fault zone is not actually one fault but a broad system of interactive faults. Armenian earthquake of erstwhile ussr of 1988 (26,000 deaths), lisbon earthquake of portugal in 1531 a. The second fault measuring 500 km in length and 100 km in width runs in north-south direction through ahmedabad, mehsana and baroda and is known as combay graben. All these processes occur so rapidly that the equilibrium of the concerned crustal surface is suddenly disturbed and hence earth tremors are caused. The collision of asiatic and indian plates and resultant subduction of indian plate and consequent folding and faulting and gradual rise of the himalayas at the rate of 50 mm per year cause earthquakes of northern india, tibet and nepal For Sale Essay On Tsunami 2004

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    Since the pacific ocean is girdled by convergent plate boundaries and the ring of earthquakes and volcanoes, tsunamis are more common in the pacific with a minimum frequency of 2 tsunamis per year. In fact, earth tremors are major precursor events of possible volcanic eruption in immediate future in any region. Since the coastal areas are densely populated the world over, and these are also centers of intense human activity, the loss of life and property is likely to be much higher by a tsunami as compared to other natural hazards in the coastal area. The sad tale of the destruction of mexico city due to the earthquake of 1985 has already been described. The disastrous earthquake of mexico city of 1985 (september) caused total collapse of 400 buildings, damage to 6,000 buildings and moderate damage to 50,000 buildings Sale Essay On Tsunami 2004

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