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natural disasters. Natural disaster - a natural phenomenon of an extraordinary nature and leads to disruption of the normal population, the loss of life, damage and destruction of property. recently happened terrible catastrophe (flood) in Brazil, it took the lives of over 500 people.
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Natural disaster - a natural phenomenon of an extraordinary nature and leads to disruption of the normal population, the loss of life, damage and destruction of property.
recently happened terrible catastrophe (flood) in Brazil, it took the lives of over 500 people Flooding - flooding areas from rising water levels in rivers, lakes, seas, because of rain, rapid snow melt, wind surges along the coast, and other reasons, which causes damage to health and even lead to their death, as well as causing damage . Floods often cause water levels in the river due to blockage of the channel ice for icing (jam) or due to clogging of the channel under stationary ice cover accumulations of frazil ice formation and ice caps (hanging ice dams). Floods often occur under the action of wind, overtaking the water from the sea and caused an increase in the expense of a delay in the mouth brought by river water.
Expertsconsider that the largest volcanic eruption, which occurred at the dawn of humanity, happened in Sumatra: volcano Toba erupted 71,000 years ago. Then the atmosphere was thrown about 2800 cubic meters. kilometers of ash, which could reduce the human population in the world up to 10 000 people. the 'drop' volcano on the Earth's surface is heated debris, ash pouring out of the magma, which izlivshis to the surface, it becomes lava. A volcanic eruption could have a time period ranging from hours to years. Volcanoes are a geological emergencies that can lead to disasters.
Tornadoes come in many shapes and sizes, but they are usually in the form of a visible condensation funnel, whose narrow end touches the earth and is often surrounded by a cloud of debris and dust. Most tornadoes have wind speeds less than 110 miles per hour (177 km / h), about 250 feet (76 m) across, and travel a few miles (several kilometers) before dissipating. The most extreme tornadoes can reach wind speeds of over 300 kilometers per hour (483 km / h), stretch more than two miles (3.2 km) across, and stay on the ground for dozens of miles (more than 100 km). [2] [3] [4] On August 9 the disaster struck the Krasnodar Territory. According to the Russian Emergencies Ministry, the funnel of a tornado reached 200 meters in diameter and in height - three kilometers. The number of victims is not clarified so far, but, according to preliminary estimates, there are 58 people died.
The most terrible event happened in the beginning of this century in Italy. The eruption of Mount Vesuvius destroyed the three Italian cities, killing thousands of people. Volcanoes throughout the history of its existence, led people in awe. The causes of the eruption is a chemical process that reached its critical point, leading to a strong explosive phenomena and flame exhaust gas to the surface. This natural phenomenon is so devastating that escape is impossible to hide from him. The consequences of volcanic eruptions are very serious.
10. Santa Maria - an active volcano in Guatemala. Its eruption occurred in October 1902, after 500 years of "silence." The eruption column of ash rose to a height of 28 km, and the explosion, he was accompanied, to be heard at a distance of 800 km. The disaster claimed the lives of nearly 6,000 people.
