Define natural disasters
Natural disasters can be defined as a set of violent, extreme natural activities that occur suddenly and suddenly that does not allow a person to take the necessary precautionary measures to mitigate their destructive effects. Environmentally unjust humanity sometimes has a major role in the occurrence of such disasters.
The causes of natural disasters
There are two main causes of natural disasters:
- Natural phenomena: The reason behind these phenomena is due to the earth releasing part of its enormous energy to reach the earth's surface, and examples of these phenomena are: earthquakes, volcanoes, and hurricanes.
- human activities: Man performs many irresponsible activities; Such as the wrong choice of locations for his residences and facilities, and neglecting to take the necessary measures to protect against the dangers of natural phenomena.
Examples of natural disasters
There are many examples of natural disasters, including the following:
- earthquakesThe movement of rocks in the earth's core causes rapid, sudden tremors called earthquakes. These earthquakes vary in intensity and severity from one region to another. For example, Alaska and California are classified as seismically active regions.
- Volcano eruption: Volcanoes release a group of eruptions such as lava, which is considered the most dangerous due to its high temperature and its ability to destroy everything that stands in its path, and the eruption of volcanoes may cause other natural disasters. Like tsunamis, and earthquakes.
- Floods: Floods occur as a result of the huge increase in the amount of water that may result from heavy rainfall, high water levels in rivers and lakes, collapse of dams, tsunamis and hurricanes, or snow melting from mountains during spring. Floods cause serious environmental and health damages. The spread of epidemics, as well as human and economic losses.
- Tsunami: They are high-energy sea waves; Its wavelength reaches about 100 km, and the reason for the formation of these waves is due to volcanic eruptions and earthquakes at the bottom of huge water bodies, in addition to landslides.
