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利用较大地震前后的地震波特性变化探索地震预报的途径,是当前地震战线上的一个重要研究课题。地震波的运动学特性及动力学特性在较大地震前后均可能发生一定的变化,本文主要探索地震波运动学特性的变化——波速异常。
It is an important research topic on the current seismic front to explore the way of earthquake prediction by using the change of seismic wave characteristics before and after larger earthquakes. The kinematic and dynamic characteristics of seismic waves may change before and after larger earthquakes. This paper mainly explores the changes of seismic kinematics - wave velocity anomaly.