Research on the Qc Value of Anhui
详细信息
- 责任者：Zheng Xianjin (Earthquake Administration of Anhui Province ; Hefei 230031 ; China) ; Liu Dongwang
- 刊名：North China Earthquake Sciences
- 出版年：2011
- 卷期：29(3)
- 关键词：尾波 ; coda waves ; 地震前兆 ; precursor ; 安徽 ; Anhui Province
- 页码：p.8-12
- 图表：2 illus., 2 tables, 13 refs.
- 分类号：0500
- 出版序号：20122267
- issnNo：ISSN1003-1375
- isbnNo：CN13-1102/P
摘要
Based on digital waveform data of ML≥2.3 earthquakes recorded by Anhui digital seismic network, the Qc value of the medium below seismic stations in Anhui area is calculated using the Sato single scattering model. The results show that the Qc value is inhomogeneous and much lower in Huoshan area. The formula for the relationship between Qc value and frequency in Anhui area is determined using curve fitting, which is Qc=（104.9±36.4）f（0.85±0.08）. Particularly, the Qc value of Huoshan earthquake swarm sequences occurred from February to December of 2009 is calculated and analyzed, which shows significant difference between before and after the main shock.
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