What are the natural disasters that endanger human health?

Natural disasters are some abnormal phenomena that occur in the natural environment, including earthquakes, volcanic eruptions, mudslides, tsunamis, typhoons, floods and other sudden disasters, as well as gradual disasters such as land subsidence, land desertification, drought and coastline changes that can only gradually appear in a long time. The harm caused by natural disasters to human society is often shocking.

On February 26th, 2004, in 65438, a tsunami broke out in Indonesia, killing more than 300,000 people in Indonesia, Sri Lanka, India, Myanmar and other countries. On May 12, 2008, an earthquake measuring 8.0 on the Richter scale occurred in Wenchuan, western China, killing 90,000 people. 20 1 1 March11day, an earthquake measuring 9.0 on the Richter scale occurred off the coast of Japan, which triggered a tsunami and killed more than 20,000 people. The harm of disasters to human health is not only manifested in the immediate heavy casualties. As the saying goes, "there is a great epidemic after a great disaster", and the harm of natural disasters to human health often takes a long time to be completely eliminated.

It has become the common theme of the international community to scientifically understand the occurrence and development of these disasters and minimize their harm.