使用强地面运动资料的反演分析,构造了1997年日本山口地震的一组震源破裂模型。对低频带和高频带,分别采用合成格林函数和经验格林函数(EGF)。高频模型的滑动区在空间上相应于低频模型的大滑动区边缘,在时间上相应于初始破裂。计算的滑动—应力关系显示,高频模型的应力衰减速率更快,并且所有模型在恒定应力水平时几乎没有滑动。 Using the inversion of strong ground motion data, a series of source rupture models for the 1997 Yamaguchi earthquake were constructed. For the low and high frequency bands, the synthetic Green’s function and the empirical Green’s function (EGF) are used respectively. The sliding region of the high-frequency model corresponds spatially to the large sliding region edge of the low-frequency model, corresponding in time to the initial rupture. The calculated sliding-stress relationship shows that the high-frequency model has a faster rate of stress decay and all models have almost no slip at constant stress levels.