• 责任者：Fan Jun (College of Geophysics ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Liu Jie
• 刊名：Journal of Seismological Research
• 出版年：2012
• 卷期：35(3)
• 关键词：地震序列 ; seismic sequence ; 震源参数 ; hypocenter parameters ; 强震 ; strong earthquakes ; 云南 ; Yunnan Province
• 页码：p.303-308
• 图表：illus., 2 tables, 16 refs.
• 分类号：0500
• issnNo：ISSN1000-0666
• isbnNo：CN53-1062/P

Using the digital waveform data recorded by six temporary digital seismic stations which was closed to the epicenters of the Yao’an M5.9 and M6.5 earthquakes in Jan., 15, 2000, applying the methods of the spectrum analysis and Brune’ theory, the authors obtained source spectrum parameters and source parameters of Yao’an earthquake sequence. The result shows that the seismic moments of Yao’an earthquake sequence are between 10⁸N· m and 10¹⁴ N· m, the stress drops are between 0.005 MPa and 10 MPa, and the source radius is between 50 m and 660 m, and the authors obtain the relationship between seismic moment M₀ and local magnitude M_L. With the seismic moment increases the comer frequency reduces, but the stress drop increases. The source radius increases with the magnitude increases, but there is no evidence relationship between source radius and stress drops.