Surface Wave Tomography of Ambient Seismic Noise Correlation in Fujian Province

详细信息   

• 责任者：Liang Fuhua (Institute of Engineering Mechanics ; CEA ; Harbin 150080 ; China) ; Jin Xing
• 刊名：Earthquake Research in China
• 出版年：2012
• 卷期：28(1)
• 关键词：瑞雷波 ; Rayleigh waves ; 速度结构 ; velocity structure ; 层析技术 ; tomography ; 福建 ; Fujian Province
• 页码：p.22-32
• 图表：6 illus., 15 refs.
• 分类号：0400
• issnNo：ISSN1001-4683
• isbnNo：CN11-2008/P

摘要

The vertical correlation coefficients between two stations at intervals of 1-day are calculated with the 77 broad-band stations’ microseisms records given by the Seismic Monitoring Network of Fujian, Guangdong, Jiangxi and Zhejiang provinces from April 13, 2010 to May 10, 2010. The authors got the different coefficients and added the interferential coefficients. Based on the chessboard test in seismology, the authors perform ambient noise tomography of Fujian Province （110°~ 123°E, 21°- 31°N） with the appropriate inversion matrix. The results imply that the signal-noise-ratio （SNR） increases proportional to the added times, and the group velocity of Rayleigh waves in Fujian Province is between 2.8 km/s and 3.2 km/s with average velocity 3.0 km/s.