Capability assessment of earthquake early warning for assumed earthquake

As a way to effectively reduce the earthquake disaster,earthquake early warning systems has been researched deeply by many scholars in the world. Most of earthquake early warning systems in our country are in local warning mode. At the same time,some new earthquake early warning systems in remote warning mode are been building up and testing. Due to the rapid development of modern earthquake engineering,new constructions have better seismic performances. So modern earthquake early warning system is designed for those earthquakes with large fault length which release a lot of energy. Considering the process of fault rupture,the way of the fault rupture process affected the time for making accurate judgments by early warning systems. In this paper,a method by setting earthquake is used to expect the damage of a fault that may arise. Combining the characteristics of the propagation of seismic waves and earthquake warning systems,the method is used to theoretically analysis earthquake early warning capability of earthquake early warning system.