Natural disasters happen all over the world, and they can be utterly devastating for people’s lives and the environments in which they live. Although natural disasters are caused by nature 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.
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.
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.
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.
One of the most common natural disasters, but also one of the most commonly forgotten, is wildfires. These take place in many different countries all over the world, particularly during the summer months, and can be caused by a range of different things. Some of the things that can start the wildfires can be totally natural, while others can be manmade, but the speed at which they spread is entirely down to nature. The two natural causes of wildfires are the sun’s heat and lightning strikes, while they can also be caused by campfires, smoking, fireworks and many other things. The reasons that they spread so quickly are prolonged hot, dry weather, where the vegetation dries out, which is why they often take place in woodland.
Natural disasters cause harmful effects when they occur. Natural disasters can be catastrophic. However, only effects of some natural disasters can be controlled. Effects of events like drought and famine and floods may be controllable through human efforts. This is however this does not mean that with efforts these disasters cannot occur. They can still occur. Natural disasters are as a result of natural processes. They can be said to be beyond human control. Catastrophic effects ofthe occurrence of natural disasters may destruct people from their normal ways of life. When disasters occur, disruption of activities for example farming may also occur. To restore the people back to their normal ways of life may become difficult. There is, however, the need for moral support for the people, financial assistance and provision and distribution of relief food to the people.
Effects of Natural Disasters
Natural Disasters on occurrence have diverse effects. Worst of all is that natural disasters such as tsunamis, drought and famine and also floods can cause death. Many lives have reportedly been lost after the occurrence of natural disasters. Any natural disaster that occurs causes shock among the residents. They keep worrying that such events can reoccur any time. Another significant effect of Natural Disasters is the displacement of people from their homes and usual locations. People have to migrate to areas where they feel safer. Others have to move as their homes and properties are destroyed. The area may also be declared dangerous and not fit for human settlement and thus people have to move to other areas. Diseases such as cholera and typhoid may occur as a result of floods. People are thus likely to suffer adversely as such diseases spread fast in case of floods. Food insecurity and scarcity may also occur as a result of the destruction of stored food and food in farms. In the event of disasters like drought and famine, people have nothing on their farms to rely on. These among other effects are harmful to human beings. For this reasons, Natural Disasters are said to be catastrophic.
What to do after occurrence of Natural Disasters
After a Natural Disaster has occurred, the people in the area need moral support. It is also essential that they are provided with financial resources. Relief food donation and distribution to the people is also necessary. Most importantly, the people of the locality should be helped to relocate in case there is need to relocate from the area.