A natural hazard is a natural process or phenomenon that may cause loss of life, injury or other health impacts, property damage, loss of livelihoods and services, social and economic disruption, or environmental damage.
Various phenomena like earthquakes, landslides, volcanic eruptions, floods, hurricanes, tornadoes, blizzards, tsunamis, and cyclones are all natural hazards, killing thousands of people and destroy billions of dollars of habitat and property each year. However, the rapid growth of the world's population and its increased concentration often in hazardous environments has escalated both the frequency and severity of disasters.
With the tropical climate and unstable land forms, coupled with deforestation, unplanned growth and proliferation, non-engineered constructions, which make the disaster-prone areas more vulnerable, tardy communication, and poor or no budgetary allocation for disaster prevention, developing countries suffer more or less chronically from natural disasters. Asia tops the list of casualties caused by natural hazards.
The eastern coastal areas of China
Eastern coastal area refers to the provinces and cities such as Liaoning, Hebei, Beijing, Tianjin, Shandong, Jiangsu, Shanghai, Zhejiang, Fujian, Guangdong, Guangxi and Hainan. There are various natural disasters in these places and the intensity of disaster activities is very high, but the developed economic and the strong capacity of comprehensive disaster reduction make it easy for these regions to defend against middle and minor disasters effectively. But still, the risk of disaster is high and the loss of expect is serious here, we believe that with the sustained and steady development of social economy and the further improvement of disaster prevention capacity, the expected loss rate will decrease. The areas of Bohai rim, Yangtze River delta and Pearl River delta urban agglomeration have all kinds of natural disasters with high intensity. The comprehensive disaster reduction capability is so strong that can defend regular disasters because of the developed social economy, but it is difficult for these cities to defend catastrophe. The defense mainly focuses on typhoon, floods, earthquake, tsunamis and droughts in the eastern coastal area.
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