The earthquake in Yunnan has killed 3 people and injured 27 people. How wide is the damage caused by this earthquake?

A magnitude 6.4 earthquake occurred in Yangbi County, Dali Prefecture, Yunnan Province, at 25.67 north latitude and 99.87 east longitude, with a focal depth of 8 kilometers. The China Seismological Network broadcast 45 aftershocks in the area. The earthquake caused 30 casualties, including 2 deaths, 23 minor injuries, and 3 serious injuries in Yangbi County; 1 death in Yongping County; and one person in Dali City was slightly injured. After the transportation department organized efforts to clear landslides and rockfalls, the section from Pingpo to Shunluo of Dabao Expressway has been cleared, and all stranded vehicles have been cleared. Emergency rescue vehicles can drive from Xiaguan to Yongping. Due to the continuous aftershocks, public vehicles will be unable to pass through in the short term.

Occurrence 5-6. Earthquake disaster refers to the strong ground vibration caused by earthquakes and the accompanying ground cracks and deformation. It causes the collapse and damage of various buildings, damage to equipment and facilities, damage to lifeline engineering facilities such as transportation and communication interruption, and the resulting disasters such as fires, explosions, plagues, leaks of toxic substances, and damage to radioactive contaminated sites, resulting in casualties and property losses.

Earthquakes are the most common and most harmful natural disasters in the world. China is a country prone to earthquakes. The direct damage of the earthquake caused the destruction and collapse of buildings, causing cracks in the ground and collapse of houses, resulting in casualties. Secondary disasters such as fires and plague also caused serious losses and a series of accidents. Since the level of modern science and technology cannot accurately predict earthquakes, our country is in a seismic activity zone. With the rapid development of urbanization, especially the damage and first aid caused by earthquakes, it represents various types of disasters and first aid measures in modern cities and towns.

It is very important to take appropriate earthquake prevention measures and learn and even exercise the ability to deal with earthquakes. Earthquakes, volcanoes and typhoons are all destructive natural phenomena, and we still have no control over their occurrence. This is scarier than anything else. In an earthquake, the most basic phenomenon is the continuous vibration of the ground, the main feature of which is obvious shaking. People in areas with extreme earthquakes sometimes experience ups and downs before feeling the massive shaking. Seismic waves travel from ground to ground, and the main cause of earthquake disasters is large horizontal vibrations caused by shear waves.