Today (May 12), China ushered in the 16th National Day for Disaster Prevention and Reduction, The theme is "everyone talks about safety and everyone can respond to emergencies - focus on improving the ability of disaster prevention and risk avoidance at the grass-roots level". The establishment of Disaster Prevention and Reduction Day is not only to commemorate the victims of the Wenchuan earthquake, but also to arouse the attention of the whole society on disaster prevention and reduction. China is one of the countries with serious earthquake disasters, with high frequency, high intensity, shallow focus and wide distribution of earthquake activities. When an earthquake comes, only by mastering the correct and scientific shock absorption methods can the losses and injuries be minimized as far as possible. Where do earthquakes happen frequently in China? What impact will different magnitudes have? How should we correctly prevent shock and save ourselves? The China Weather Network has launched a series of popular science guides for disaster prevention and mitigation. Please keep this risk avoidance knowledge manual.