Who knows the top ten natural disasters?

Below, let's count the impact of ten natural disasters on communication, in the following order according to the degree of damage. 10, drought, 9, insect disaster, 8, sandstorm, 7, volcanic eruption, 6, fire, 5, debris flow, 4, flood, 3, snowstorm, 2, earthquake, 1, tsunami.

Tenth place, drought. Drought has the characteristics of wide range and long duration. Drought is often accompanied by high temperature weather, and precision instruments such as communication equipment may be burned or short-circuited due to high temperature.

Ninth place, insect disaster. The impact of insect disasters on communication equipment is limited, but sometimes it will cause certain damage to optical fiber and optical cable.

Eighth place, sandstorm. Because communication base stations and switches are precision equipment, if sand enters the equipment, it will have a certain impact on the equipment.

Seventh, volcanic eruption. Volcanic eruptions are very powerful and often cause small-scale earthquakes. However, because most volcanoes are located in remote mountainous areas, the impact on communication equipment is limited, but once they erupt, all local equipment will be paralyzed.

Sixth place, fire. Fires are very destructive to communication equipment, but most of them occur in grasslands and forests, and the impact range is small. In many natural disasters, fires are relatively easy to control.

Fifth, debris flow. Debris flows are mostly in mountainous areas, and all communication equipment in disaster areas is destroyed. In addition, the road was blocked after the landslide, which was very unfavorable for post-disaster rescue work.

Fourth, floods. The once-in-a-century flood of 1998 caused a devastating blow to China Telecom. Floods have a great impact on switches, optical cables, base stations and trunk lines, and have a great impact on communications in disaster-stricken areas. In addition, floods in China often occur in the Yangtze River, Yellow River, Huaihe River, Jialing River and other places, and have a wide range of influence due to more direct current.

Third, the snowstorm. The snowstorm at the beginning of this year caused serious damage to communication equipment, especially caused huge economic losses. According to rough statistics, the cumulative direct economic loss of the communication industry due to disasters is 654.38+0.2 billion yuan, and the cumulative disaster relief investment is about 665.438+0 billion yuan.

Second, the earthquake! On May 28th, 2008, an earthquake of magnitude 7.8 occurred in Wenchuan County, Sichuan Province at 0/2 14: 28. Communication equipment in Sichuan, Shaanxi, Gansu and other places was seriously affected. From the analysis of the influence of previous earthquakes on communication, the loss caused by this earthquake is immeasurable, which has a greater impact on post-disaster rescue and reconstruction. The earthquake caused many road sections to collapse, blocked roads, prevented rescue troops from reaching the affected areas, and failed to restore communication equipment, which made it difficult to rescue the wounded and restore equipment. The earthquake is another severe test for China's communication industry. At the same time, China's communications industry should be vigilant again, strictly grasp the deployment of emergency plans for catastrophic disasters, and strengthen prevention and detection while doing a good job in this disaster relief work.

The first is the tsunami. Tsunamis are usually caused by strong earthquakes, mostly in coastal areas. In 2004, the Indian Ocean tsunami killed 300,000 people, and the economic losses caused by the tsunami disaster have exceeded 654.38+0 billion euros (654.38+0.36 billion US dollars). Wherever the tsunami went, it was devastated and communication equipment was completely destroyed. The destructive power and scope of the tsunami were very strong.