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一、前言 地震是地壳破裂现象。目前对地震发生后弹性波的研究已有相当进展,但对于作为破裂现象的地震所进行的研究却进展不大。其原因是,将破裂作为非线性现象所进行的研究十分困难。不过,茂木(1962,a,b,1963,a,b)关于岩石破裂实验中所产生的微破裂微震活动性与天然地震的地震活动性相关关系的研究是地震破裂动力学研究的开端。他认为,地震与岩石破裂图象的特征是物质(地壳、岩石试样)不均匀性。茂木的研究给人以很大启
First, the preface Earthquakes are crustal rupture. At present, considerable progress has been made in the study of elastic waves after the earthquake, but research on the earthquake as a rupture has made little progress. The reason is that the study of rupture as a non-linear phenomenon is very difficult. However, the study of the correlation between the microseismic activity of micro-fractures and the seismicity of natural earthquakes produced by Moteki (1962, a, b, 1963, a, b) is the beginning of the study on earthquake rupture dynamics. He believes that the characteristics of earthquakes and rock-burst images are the inhomogeneities of matter (crust, rock samples). Research on Motegi gives a great start