数字观测时代的全球三维结构与地震定位研究*

摘要/Abstract

摘要： 概述了地震学观测研究取得的对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。文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定位工作。

关键词: 地震定位, 地球结构, 三维, 一维, 地震层析成像

Abstract: This paper summari zed the basic achievement sabout the earth st ructure from seismological study at present. A brief summary of main advances in seismic tomog raphy research with digital data was li sted as the follows: sensitivi ty analysis of inversion, the simultaneous solution for seismic velocities and earthquake hypocenters, nonlinear inv ersions and irregular parameterization techniques. Some specific ing redients of travel-time tomog raphy were discussed in details. Then the recent progress of earthquake location with global threedimensional earth model was reviewed.

Key words: Earthquake location, Earth model, Three dimension, One dimension, Seismic tomography

中图分类号:

P315.61

陈棋福, 张跃勤, 周静. 数字观测时代的全球三维结构与地震定位研究^*[J]. 地震, 2001, 21(2): 29-40.

CHEN Qi-fu, ZHANG Yue-qin, ZHOU Jing. Review of earthquake location with three dimensional earth model for digital seismic observation[J]. EARTHQUAKE, 2001, 21(2): 29-40.

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数字观测时代的全球三维结构与地震定位研究^*

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

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