数字观测时代的全球三维结构与地震定位研究

概述了地震学观测研究取得的地球内部结构的一些基本认识，并介绍了在数字地震观测时代，地震层析成像研究取得的一些进展，如敏感性分析、结构和定位联合反演、非线性反演和非规则的参量化方法等。同时就地震学的传统定位问题，概述了利用地震走时进行地球深部结构反演所涉及的一些基本问题，即数据资料、模型参量化、反演计算和敏感性分析中的具体细节问题。中就国际地学界近年来利用三维结构开展地震定位研究的动向，从地震精定位在地震成核、精细地质结构刻画、核查和震源破裂过程研究等方面的应用研究角度，希望在中国能尽快推进相应的地震精度定位工作。

Review of earthquake location with three dimensional earth model for digital seismic observation

This paper summarized the basic achievements about the earth structure from seismological study at present. A brief summary of main advances in seismic tomography research with digital data was listed as the follows: sensitivity analysis of inversion, the simultaneous solution for seismic velocities and earthquake hypocenters, nonlinear inversions and irregular parameterization techniques. Some specific ingredients of travel time tomography were discussed in details. Then the recent progress of earthquake location with global three dimensional earth model was reviewed.