• 责任者：Shi Haikuo (Earthquake Administration of Ningxia Hui Autonomous Region ; Zhongwei 755000 ; China) ; Zhu Xinyun
• 刊名：Earthquake
• 出版年：2011
• 卷期：31(1)
• 关键词：尾波 ; coda waves ; Q值 ; Q value ; 地震活动性 ; seismicity ; 宁夏 ; Ningxia
• 页码：p.118-126
• 图表：illus., 2 tables, 18 refs.
• 分类号：0500
• issnNo：ISSN1000-3274
• isbnNo：CN11-1893/P

Based on the Sato model, adopting digital wave datas of 121 earthquake above M_L2.0 from Jan. 2008 to Dec.  2009, which were recorded by Ningxia earthquake nets, the average Q value of seismic coda in relative regions is calculated, and the relationship between Q value and frequency is polyfited.  The whole region′s result is Q(f)=(44.81±15.87)·f ^{0.9491±0.0805}.  Compared with other regions, the Q value of seismic coda in Ningxia and adjacent regions is relatively lower, but the dependence on frequency is higher. Comparison of the polyfited results shows that Q value′s distribution reflects the related region′s tectonic activities and seismic activity.