地震地磁观测与研究2011，Vol.32Issue(6)：35-41,7.DOI:10.3969/j.issn.1003-3246.2011.06.007
宁夏地区中小地震震源参数的研究
Research of source parameters for medium and small earthquakes in Ningxia area
许英才 1许文俊 1李鸿庭1
作者信息
- 1. 中国银川750001 宁夏回族自治区地震局
- 折叠
摘要
Abstract
In this paper, 31 seismic events of ML 2. 7-ML 4. 9 in Ningxia region and borders, which occurred from May, 2009 to Oct, 2010 were studied. Based on the source displacement spectrum of the omega-squared mode, removed the effects of instrument, attenuation and site from the observed spectra, we get the source spectra of these earthquakes. According to Brune's model, the source parameters such as the seismic moment Mo, Mw, stress drop △δ and source radius are calculated. We also analyzed the relationship between the source parameters. The result shows that there is a good relation among the lg Mo ,MW and ML of the 31 events.关键词
观测谱/震源谱/震源参数/矩震级Key words
observed spectra, source spectra, source parameters, Mw引用本文复制引用
许英才,许文俊,李鸿庭..宁夏地区中小地震震源参数的研究[J].地震地磁观测与研究,2011,32(6):35-41,7.
