Analyzing the happened natural disasters in our planet, it seems that lately these happen most frequently, but these disasters have happened during all the history. If we establish a ranking of these during our existence, this it could be thus:

1. The tornado of the three states: Generally the tornados are very dangerous, but a tornado that in 1925 happened through three states of the EU, causes that all the others seem small. The tornado crossed more than 350 kilometers and was one of strongest never registered, establishing the standard for a level 5 in the Fujita-Pearson scale. In “theory” the tornados and the electrical storms cannot extend by as much distance, but the information confirm that this tornado, that in fact crossed three different states without pausing (Missouri, Illinois and Indiana), produced the death to almost 700 people, hurting to more than 2000 and producing damages in the properties by $ 16.5 million dollars.

2. Lake Nyos, Cameroun, 1986: In 1986 near 1,800 people they were found dead in the environs of the mentioned lake. Thousand of heads of cattle and wild animal they also underwent the same luck. The bodies did not show to external signs of trauma or disease. With the aid of scientists worldwide, one determined that the Nyos lake was the most probable cause of the catastrophe. When analyzing the water of the lake, formed in the crater of an extinct volcano, were high levels of CO2, product of the gas liberation from the bottom of the lake. A carbon dioxide cloud moving to almost 50 km/h, lowered surrounding valleys, expanding about 23 km to the round one. As it advanced, the heavy gas fitted to the land, evacuating the air and asphyxiating to men and animal.

3. The explosion of Tunguska: The event was product of an air burst of very high power happened on the proximities of the Podkamennaya river in Tunguska (Evenkia, Siberia, Russia) day 30 of June of 1908.

The phenomenon encouraged more than 30 hypotheses and theories of the happened thing. The detonation, similar to the one of a thermonuclear weapon of high power, has been attributed to a celestial object. Because any fragment has not recovered, the theory that is handled it was a comet that would be formed of ice. When not reaching the surface, crater or astroblema did not take place. The study of the event of Tunguska was delayed and confused. The czarist government did not consider it high-priority (some sources indicate that they had much interest in making happen it through a “divine warning” against the revolutionary agitation in course), and would not be until 1921 - already during the government of Lenin- when the Soviet Academy of Sciences sent an expedition to the zone directed by the minerólogo Leonid Kulik. The climate allowed that the alteration of the tracks of the impact was very little. It would find an area of devastation of 50 km of diameter, but no crater indication, which was to him surprising. In the following years there were several expeditions more; in 1938 Kulik it realised aerial photographies of the zone, which put in evidence a structure of the area of devastation in the form of “butterfly wings”. This would indicate that two successive explosions took place in line straight. To the day of the date it is not known with exactitude that happened in this remote region.

4. the 1816 winter endless: In these days of global heating and “heat waves” it is difficult to imagine a summer with snow, but for which they lived in the northeast on the United States, Canada and Europe in 1816, was a reality. The problems began at the beginning of May, when a frost especially killed to numerous cultures causing food shortage in Europe. This phenomenon of cold wave had to a large extent to a volcanic eruption of the Tambora, produced in the previous year, causing the phenomenon that is known like “volcanic winter”.

5. Eruption of Krakatoa volcano:  This volcano has entered eruption in repeated occasions with disastrous consequences throughout history. In 1883 an eruption took place that was considered like one of the “more violent volcanic events of history”, killing to tens of thousands of people. The sound caused by the eruption is considered as the highest sound historically registered and this could be listened to almost 3,000 km of distance in Perth, Australia. The explosion destroyed the two third parts of the island of Krakatoa, and other small surrounding islands. Also he is interesting to observe is that the dust of the explosion caused what blue moon” in continuous form is denominated “during almost two years.

6. Mortal hail in Bangladesh: The hail is not a rare event, and generally he is inoffensive.  Nevertheless, occasionally the size of the hail can be considerably greater than the habitual one. The greater hail registry I report myself in the city of Gopalganj, Bangladesh, in the spring of 1986, where the ice particles weighed around 1 kg. This precipitation I cause to the death to 92 people and the total destruction of many cultures.

7. Invasion of serpents in Martinique: A combination of geologic and natural phenomena gave rise to this strange case in 1902.  The ash rain and the strong scent to sulphur, product of the volcanic activity in “Bald Mountain” I force to thousands of poisonous serpents, of the Bothrops species lanceolatus, to leave its homes of the mountain. The serpents lodged in houses of you take care of Saint-Pierre, killing to more than 50 people and without number of domestic animal.

8. Earthquake the New Madrid, Missouri: Whereas the West of the United States is   known by its seismic activity, a great part of Means the West of the EU also this on a fault, and although not especially activates, when it activates does on a large scale. Luckyly, at the time of the earthquake (1811-1812), the affected zone more barely was populated, reason why few lives were lost, but the impact was geologic was very important. Enormous cracks divided the land, which reshaped the landscape of the central region. The one was not only the Means the West that felt the earthquake, also inquired damages in the New England, Boston and Washington, DC. The majority of the geologic processes is slow and takes million years to happen, reason why it is rare to see a dramatic modification of the environment during a so short period of time.

9. Explosion of elephants in India: The spring of 1972 found the Chandka forest under one prolonged drought. To make matters worse, the region was affected by an immense heat wave. This caused that the local elephants, normally docile, a frenzy by the lack of water and foods. Many of the agriculturists had to leave their homes.  The situation persisted until entered good the summer and the elephants driven crazy by the lack of food, brought about explosions through five different villages, causing 24 deaths and destroying everything from its step.  Peculiarly, this area, much more humid at present, is a reserve of elephants.

10. The air pollution in London: Although this it is not a totally natural case, the environment performance an important paper in the chain of events. At the beginning of December of 1952, a cold fort and fog moved to the zone of London. Due reduction of the temperature, the Londoners began the burning fire of more coal to warm up their homes. The contamination released by the combustion of the coal I am catched by the dense cold air mass that you take care of covered it. These accumulated polluting agents in the course of four days until the smog was made so thick lead turned into impossible. To remain within a house was not any aid,   concerts and plays were cancelled because the assistants could not see the scene through smoke. At the moment, there was no great panic by smog. Nevertheless, in the weeks that followed, more than 4000 people they died, and other 8,000 in the months that followed, all with caused respiratory problems or agravated by the contamination. This misfortune promoted the approval of the Clean Air Law in 1956, turning to the Londoners into more conscious people of its effect on the events of the environment.

Source: www.huricaneinsurance.com

It interests to you:

• happened natural disasters in the world
• disasters happened at world-wide level 2011
• natural disasters that have happened in the world
• The 10 natural but strange disasters of history
• 10 desatres but strange of the world
• natural disasters that an happened in the year of the 2011
• happened disasters anywhere in the world
• disasters in Europe that happened in 2009
• happened natural disasters lately
• that natural catastrophes have happened years in the world in the last