The Coseismic InSAR Measurements of 2008 Yutian Earthquake and Its Inversion for Source Parameters
详细信息
- 责任者：Zhang Guohong (State Key Laboratory of Earthquake Dynamics ; Institute of Geology ; China Earthquake Administration ; Beijing 100029 ; China) ; Qu Chunyan
- 刊名：Chinese Journal of Geophysics
- 出版年：2011
- 卷期：54(11)
- 关键词：地震 ; earthquakes ; 震源 ; focus ; 反演问题 ; inverse problem
- 页码：p.2753-2760
- 图表：5 illus., 3 tables, 21 refs.
- 分类号：0500
- issnNo：ISSN0001-5733
- isbnNo：CN11-2074/P
摘要
Based on the InSAR measurements and the constrained least square method, the authors studied the source parameters of 2008 Yutian earthquake. Four schemes of inversion were constructed, with the emphasis on the effect to slip distribution inversion of the incidence angle and azimuth angle. The results show that the incidence angle has certain effect on the slip distribution. The azimuth angle has almost no obvious effect and it is an optimal choice to use the mean azimuth angle. The most robust slip distribution can be obtained with the two parameters being location dependant.