Principle of early earthquake warning system

Shenzhen has also been shaken. In the face of the active period of the global crust, humans should take precautionary measures on the basis of following this objective law, and adopt technical measures to prevent the losses caused by natural disasters. An early warning system for earthquakes, what is the principle of the system?

The principle of an early earthquake warning system is very simple. An earthquake begins with a shock called a P wave. The wavelength of the P wave is very short and generally does not cause damage, but humans cannot feel it. After a few seconds—the exact time depends on the distance from the epicenter—a long-wave vibration called the S wave arrives, which causes the earth and buildings to shake, causing disaster. The earthquake warning system consists of a series of seismometers that monitor P waves and issue electronic alerts. Networking such monitoring sensors can improve the accuracy of the system. This monitoring sensor networking can improve the accuracy of the system. Although the time of a few seconds is very short, in times of crisis, it can save many people ’s lives and greatly reduce the disaster caused by the earthquake.

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