(And Creative Ways to Reuse), Can You Recycle Tea Bags? Earthquakes are caused by the movement of the Earth's plates. During the 1930s nuclear tests conducted by the United Sates, numerous small towns and villages were devastated as a result of this grave act. Dept of focus: The energy released in earthquakes from this belt is about 15 percent of the world total. Some of the classifications are as under: Origin: Forecasting earthquakes are a bit difficult but earthquake warning systems have been developed. There are many aftershocks that occur after the mainshock. A lot of people get killed and injured. This kind of earthquake leads to the collapse of the roof of the mine instigating more tremors. Glad to hear that it was helpful. Our team of exam survivors will get you started and keep you going. Most of the scientists believe that earthquakes are formed due to the movement of the earth’s plates. Nimwell King Kwofie, Ghana on November 23, 2014: Not bad at all but the distribution should have mentioned more towns and countries with their intensities and not just the zone and few cities and countries. The major fault lines of the world are located at the fringes of the huge tectonic plates that make up Earth’s crust. A tsunami can wipe out an entire surrounding coastal area population. Its magnitude may be small or large. Countries like Japan are prone to earthquakes as they come in high seismic zone. Fires can damage areas of woodland. These are caused by nuclear explosions. Can cause major damage … The stress among the plates can also occur when one plate goes over the other or when the sides if the plates collide. Faults extend from a few centimetres to many hundreds of kilometres. There are many classifications for earthquakes. Major earthquakes can cause rupturing of roads, gas lines, and water pipelines. Secondary effects occur as a result of the primary effects, eg tsunamis or fires due to ruptured gas mains. can cause even more damage to an area. One of the most devastating Tsunami occurred in Indian Ocean on Dec. 26th 2004. Very great earthquakes occur on average about once per year. Effects of Earthquake. Tectonic earthquakes have caused most of the planet’s mass destruction. The mantle consists of lithosphere which is the upper mantle and asthenosphere which is the lower mantle. The plates are usually marked by fractures or fault lines formed when the plates tear apart or slide or collide past each other. Damage done is chiefly in following respects: About 90% of the world's earthquakes and 81% of the world's largest earthquakes occur along the Ring of Fire. Little was understood about earthquakes until the emergence of seismology at the beginning of the 20th century. Earthquakes kill many people because they have no warning signs and find people unprepared. ), Can You Recycle Milk Cartons? Earthquakes are caused by the sudden release of energy within some limited region of the rocks of the Earth. The buildup of pressure becomes unbearable and releases itself with a massive explosion. If u will add earthquake's planning,prepardness,mitigation and recovery means it will be verrrry....good. are most powerful at the epicentre. Don't worry about it. Varsha (author) from India on June 24, 2017: Thankyou so much for appreciating my work. P waves propagate through the Earth with a speed of about 15,000 miles per hour and are the first waves to cause vibration of a building. As, we all know earth is divided into 3 layers namely – Crust, Mantle and Core. On the basis of origin, earthquakes are divided into tectnotic and non tectnotic earthquakes. Earthquakes are DESTRUCTIVE things they are terrifying and unpredictable. Intensity on the other hand is observed by the ground shaking of the people and buildings. Earthquakes may cause landslips to dam rivers, which collapse and cause floods. Earthquakes can occur anywhere, but they occur mainly along fault lines (planar or curved fractures in the rocks of Earth’s crust), where compressional or tensional forces move rocks on opposite sides of a fracture. The core has a liquid outer core made up of iron and it is very dense. Maam this was very helpfull for my assignment thanks for this, i think the distribution of earthquakes is into 4.according to spacial distribution earthquake regions are circum pacific belt,midatlantic belt,midcontinental belt and interplate seismicity.if i am right post a reply varsha. High magnitude earthquakes result in shattering of mirrors and windows, which also present danger to humans. The amount of energy released during earthquake is called magnitude. The shaking causes regions of the rock and soil to slide downhill. Conserve Energy Future is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. On numerous occasions, magma blocks the vents during a volcanic activity. Earthquake, any sudden shaking of the ground caused by the passage of seismic waves through Earth’s rocks. When an earthquake occurs, large rocks and sections of earth located uphill can be dislodged, consequently, rolling rapidly down into the valleys. It affects the mental health and emotional health of people. Tectonic plates found in ocean are called oceanic plates while those found in continents are continental plates. earthquake is a hOrribLe disaster n as i reaD moRe abOut iT i thInK its epResivE oF what oUr, desIgners 4KiT 4 earthquake safefty dwn 4us keeP up thE gOod work. frkjewkewkldekmrekmorekmoewmkodwmokdwmkdemefomerk. The shock waves can thrust up cliffs and open huge cracks on the ground leading to an earthquak… 80% of the earth is mantle. The energy can be released by elastic strain, gravity, chemical reactions, or even the motion of massive bodies. Tectonic earthquakes are the most prevalent kinds of earthquakes in the world. This is dangerous because the exposed live wires can electrocute humans or start fires. Its very good children are eork from this. You give a very strong argument, but I still think not. That is very not nice if it wasn't useful for you then get the f out of here. This done through Richter scale. But in the areas of faulting and folding or of crustal weakness, the frequency of earthquakes is more than anywhere else. Discover how to measure the strength of an earthquake and the effects that major earthquakes have had. It was good I used it for homework but it would be more nice if you give more points to causes of earthquake overall it was good. The core is the innermost layer of the earth. Earthquakes are the sudden violent shaking of the ground. A typical example is the March 11, 2011, earthquake and tsunami that struck the coast of Japan leaving more than 18, 000 people dead in its wake. Earthquakes are caused by the release of built-up pressure at plate margins. During an earthquake, magma erupts from inside the earth’s crust leaving a space behind. She mostly writes about geographical phenomena. it's very useful to all of us. Up until now, scientists have not been able to tell whether an earthquake is a foreshock until the real earthquake occurs. This tool was developed by Charles F. Richter of the California Institute of Technology. Investment in the area may be focused only on repairing the damage caused by the earthquake. Thank u so much... Nice I used it for homework thanks for this webpage. - AQA, Home Economics: Food and Nutrition (CCEA). Kylie M. on April 24, 2017: Good Job!!! There are other, secondary effects that are caused by earthquakes, most often a result of strong shaking.

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