目前,地震波方法正在地震予报实践中不断发展与提高。主要有两个探索方向:一是探索较大地震前震源孕育地区介质性质的变化,以期寻找地震波特性(波速、振幅、频谱等)的中短期前兆异常指标,这种方法国外有人称为“震源区的地震透视法”;二是探索较大地震的深部孕震构造特征,以便划出地震危险地段并作出中长期地震予报,这就是一般的深部 At present, the seismic wave method is being continuously developed and improved in the practice of earthquakes. There are two main directions for exploration: one is to explore the change of the medium properties in the regions where the earthquakes were generated before the larger earthquakes in order to find medium- and short-term precursory anomalies indexes of seismic characteristics (velocity, amplitude, frequency spectrum, etc.) District Seismological Perspective "; the second is to explore the larger earthquake seismogenic tectonic features in order to draw the seismic hazard and to make long-term earthquake to the newspaper, which is generally deep