Although natural disasters are caused by tauter and there is nothing that we can do to prevent them happening, there are many different natural causes that lead to natural disasters, and being aware of these causes enables us to be better prepared when such disasters do arrive. Different Types of Natural Disasters One common natural disaster is flooding, which occurs when a river bursts its banks and the water spills out onto the floodplain. This is far more likely to happen when there is a great deal of heavy rain, so during very wet periods, flood warnings are often put in place.
There are other risk factors for flooding too: steep-sided channels cause fast surface run-off, while a lack of vegetation or woodland to both break the flow of water and drink the water means that there is little to slow the floodwater down. Drainage basins of impermeable rock also cause the water to run faster over the surface. E. G. In china 1931, flood on the Changing River took at least 145 000 people. (Other estimates go over a million, but we have not confirmed that. ) Earthquakes are another common natural disaster that can cause many fatalities.
The movements of the plates in the earth’s crust cause them. These plates do not always move smoothly and can get stuck, causing a build-up of pressure. It is when this pressure is released that an earthquake occurs. In turn, an earthquake under the water can also cause a tsunami, as the quake causes great waves by pushing large volumes of water to the surface. E. G. Chile 1939, 28000 people people were killed from 8. 3 earthquakes. Tsunamis can also be caused by underwater volcanic eruptions. Volcanic eruptions are another natural disaster, and they are caused by magma escaping from inside the earth.
An explosion takes place, releasing the magma from a confined space, which is why there are often also huge quantities of gas and dust released during a volcanic eruption. The magma travels up the inside of the volcano, and pours out over the surrounding area as lava. E. G. 12 south Asian Nations, 2004-2005 Earthquake of 9. 0 and the resulting tsunami creates one of the world’s worst disasters. It does major damage to: Indonesia, India, Malaysia, Sardinia, Maldives, Thailand, Manner, Somalia, Tanzania, Seychelles, Bangladesh. Etc..
Hurricane Drought & Burning Forest Drought can have serious health, social, economic and political impacts with far-reaching consequences. Water is one of the most essential commodities for human survival, second only to breathable air. So when there is a drought, which by definition means having too little water to meet current, demands, conditions can become difficult or dangerous very quickly. Drought can be affected to the economy by: Thirst-? all living things must have water to survive. People can live for weeks without food, but only a few days without water.