• 责任者：Fan Xiaoping (Earthquake Administration of Jiangsu Province ; Nanjing 210014 ; China) ; Li Qinghe
• 刊名：Seismology and Geology
• 出版年：2009
• 卷期：31(4)
• 关键词：横波 ; S-wave
• 页码：p.598-606
• 图表：6 illus., 15 refs.
• 分类号：0500
• issnNo：ISSN0253-4967
• isbnNo：CN11-2192/P

High-frequency S-wave seismogram envelopes of microearthquakes are broadened with increasing travel distance, which is called S-wave envelope broadening. The results show that the phenomenon of S-wave envelope broadening in Changbaishan Tianchi volcano is obvious, and the peak delay time of S-wave has a positive correlation with hypocenter distance and frequency of S-wave. The relationships between the peak delay time of S-wave and the hypocenter distance for different frequency bands were got by statistics method. The results are beneficial to the understanding of the S-wave envelope broadening phenomena and the quantitative research on the inhomogeneities of the crust medium in the Changbaishan Tianchi volcano region.