What is earthquake? complete guidance

 

Earthquake is one of the natural disasters. The origin can be traced to the early days of the formation of the earth. It is responsible for a lot of damage to living organisms and non-living. For many centuries no man who does not know why earthquakes occur and how they occur and to what extent the damage will be. He believed he was the only one who was angry with Mother Earth and caused the earthquake and that he always feared.It was left to Aristotle, the great Greek philosopher, to link this phenomenon of the earthquake to physical factors. According to Aristotle, when the compressed air escapes into the bow, shake it part of the land. This is called the emission of volcanic activity. When the volcano exploded, and a lot of lava, gas and other out of the ground, and the failure of the exit. This causes a pressure imbalance and results in the production of earthquake waves in the surrounding areas. Thus has been identified that volcanic activity is one of the causes of earthquakes. Results of volcanic activity in the crack. To fill the new errors on the movement of the earth takes place. This causes the earthquake.The second reason is the isostatic adjustment. Earth's surface and some of the blocks and barriers set up a certain depression. They keep the balance of the earth, and when the rotor moves the units of the axis. Raised these blocks until it is washed down due to various reasons, and why the imbalance. Earthquakes also occur and then to restore and maintain this balance.We can see that earthquakes usually occur in areas volcano Prime Minister and under the feet of the hills and mountains, as well as any settlement earthquakes occur frequently in China, Japan, the Philippines, and southern parts of the Himalayas, cut off Prime Minister volcano in Europe and parts of North West and South America. It is also likely to occur in the state of Rajasthan in India and Arab countries.One can not say that earthquakes do not occur in other places. They may occur in any part of the world at any time. We are not sure of the very radical Islamic movements from the ground and pressure points and the session. Only in this way one can determine the areas, are likely to occur.All earthquakes do not cause serious damage. Those that are of high density is really dangerous. There are standards to measure the intensity of the earthquake. It was the first one in the scope of Mercall. Is the measure of a qualitative, not quantitative scale, and so are not useful for measuring the density. The second is the Richter scale. Is released from inside the Richter scale. Measured with numbers. If the earthquake measures 7 points on the Richter scale, it causes severe damage because of severe intensity. Perhaps those measuring 5 points and less do not cause much damage.Scientists are now able to study and determine the secondary waves and higher education also in the waves of earthquakes. Scientists are able to study the radical Islamic movements in the wave of the help of a device called a seismograph. Helping one can also predict the possibility of an earthquake is likely, "Where and when is likely to happen.In India more than earthquakes occur in the Himalayas, the Ganges and Brahmaputra valleys. Was signed by only a few earthquakes in the Deccan Plateau. Earthquake, which occurred in 1967 in Icwyna and the earthquake in 1993 in the state of Maharashtra in the last Latour are in this area.And can in this respect than men of natural disasters can not be the only master he becomes a master of nature altogether. This is not possible for a man with limited knowledge of nature has in his leadership.

Beiging earthquake

The death toll in China's major earthquake by 4820 to 60,560 as of noon today, according to the Information Office of the State Council. And injured 352,290 people and 26,221 missing in the quake measuring 8.0 on the Richter scale hit the southwestern Sichuan Province on May 12 was affected by a total of 45.5 million people in the quake, were evacuated nearly 14.4 million quake-affected people, according to the office. He said 27 aftershocks measuring magnitude 5 above, and four above magnitude 6, and as of Monday noon, 178 aftershocks were monitored power above 4 on the Richter scale struck in Sichuan, and among them, in the office. Sources and medical treatment of victims of the earthquake, nearly 290,000. Has been in the hospital a total of 75,086 injured victims after the earthquake. Among them, 40,644 have been discharged from hospitals 0.23864 are still in the hospital and transferred to other hospitals out of 4274 of Sichuan for treatment. And reached the domestic and foreign donations for earthquake survivors reached 26.1 billion yuan in cash and goods, up 1.5 billion yuan from the previous day. Of the total, transferred 3.68 billion yuan for disaster railway area.The whole Baoji - Chengdu, were damaged by the earthquake, the key road between the north and south in the west of China, linking Chengdu with Baoji city in neighboring Shaanxi Province, to open the Saturday after the passage of 283 hours of closure, allowing batch transport of disaster relief goods to Sichuan. Train carrying relief supplies are urgently needed tents and medicines passed through the railway tunnel No. 109 at 9:53 on Saturday morning, where a freight train of 40 vehicles off the tracks and was trapped, paralyzing the railway in the May 12 earthquake. Electricity was restored partially in 16 counties in Sichuan by Saturday noon, but the blackout was still two hardest hit counties (Beichuan and Lixian) out. Resumed services of telecommunications in all quake regions, except for Hongguang Town, Qingchuan. Hongguang residents were evacuated because of fears of possible further geological disasters.

powerfull Japan disaster

Government agency the Nuclear Regulatory taught with a focus on five scenarios, including the possibility of the earthquake on both the tsunami struck the reactor, and when assessing the nuclear safety under the title of "stress tests" What is called for inclusion in the wake of the crisis Daiichi Fukushima, government sources said Wednesday.The Agency for Nuclear Safety and industrial aims to compile the draft plan, later this week, perhaps, for how they will conduct safety assessments, which will be implemented in two phases. And another watchdog, the Commission on nuclear safety, check whether the project plan reactors appropriate.Nuclear idled for a regular check-ups will be subject for the first stage for the resumption of the process, with the study of the extent of assistance that key facilities will be able to withstand damage in the event of severe natural disasters on the scale more expected.waves of tsunami to the compound of Gush near the Unit 4 reactor at the Fukushima nuclear complex in the Dai Ichi Okuma, Fukushima prefecture, northeast of Japan.The the second phase of tests will be more comprehensive and implemented in all nuclear power plants. Based on these results, Japan's nuclear reactors that are currently in a process that can be suspended.The sources said that the first phase of the analysis may adopt a simpler method of the second stage, in a way that does not go away from what has been achieved to reduce the actual study, but whether can withstand a certain level of impact.The method called PSA uses the digital data representing all possible accidents and the frequency of earthquakes that may occur in nuclear power plants and their impact. But can not evaluate each of the five cases by method.Of five scenarios, the two remaining from the reactor when it loses power, and when you are working to take the heat from the reactor using sea water, but fails. And flooded the road leading to the compound of Dai Ichi Fukushima nuclear power plant as the tsunami struck established after the devastating earthquake in the town of Okuma, Fukushima prefecture, northeast of Japan.The stages I and II of the analysis conducted by the utilities operating nuclear power will provide plants and agency of nuclear safety, and will consider the decision of the Agency by the Nuclear Safety Commission.