This is the first successful warning before the China earthquake.
Earthquake early warning system refers to the supporting facilities to realize earthquake early warning. According to the order of system response, it can include: earthquake monitoring network, earthquake parameter rapid judgment and measurement system, alarm information rapid release system and early warning information receiving terminal. The whole system has the characteristics of high integration, real-time monitoring and quick response, especially quick response. Because the earthquake early warning system is actually racing against seismic waves, winning one more second will give you one more second of reaction time, and it is most appropriate to use every second to describe it.
Experts from the Seismological Bureau of Yunnan Province believe that from the perspective of earthquake prediction technology, even a few seconds in advance when an earthquake comes is undoubtedly worthy of recognition, but we should also clearly see that the time left in the earthquake early warning system is too short to effectively prevent house damage and casualties. Experts emphasize that earthquake early warning plays a great role in the emergency shutdown of high-speed trains and major lifeline projects. This kind of early warning has a certain effect on destructive earthquakes with magnitude above 5, but it has little significance for earthquakes with magnitude below 5. At present, the application scope of the existing earthquake early warning system in China is limited.