郑联达教授多年来一直从事地震预报的研究工作 ,并取得了很多成果 .近期又发现了预警地震 .共振是一种普遍的物理现象 .在地震事件中也存在着共振现象 .一个大震发生时 ,其冲激波可引起原震中的震源体共振 ,称为预警地震 .冲激波有方向性 ,以地震带、经度线和纬度线为优 .根据 Professor Zheng Lianda has been engaged in earthquake prediction research for many years and has achieved a lot of results.Recently, it has also discovered the early warning earthquake.Resonance is a common physical phenomenon.At the time of the earthquake, there is also the phenomenon of resonance.A large earthquake occurred, The impulse wave can cause the source body resonance in the original epicenter, which is called the pre-warning earthquake.The impulse has the directionality, and the seismic belt, the longitude and the latitude lines are excellent.According to