地震地磁观测与研究2018，Vol.39Issue(1)：60-66,7.DOI:10.3969/j.issn.1003-3246.2018.01.010
江苏及邻区地震烈度衰减关系
Study on seismic intensity attenuation law in Jiangsu and its adjacent areas
摘要
Abstract
Since the difference of focal character, media and site, seismic intensity law is different in regions. In this paper, collecting 120 isoseismal lines from 59 earthquakes which occurred during the year of 1937 to 2015 in Jiangsu and its adjacent areas, and measuring the major and minor axis radius of isoseismal line, the seismic intensity attenuation law in study areas is obtained by using ellipse intensity attenuation model and the multiple stable regression method. The result is compared with that given by Wang Suyun and also checked with the real isoseismal lines from earthquakes which have occurred in the past few years. The result shows that the obtained seismic intensity attenuation law is well fitted with the real isoseismal lines and it has strong reliability in the range of MS less than 6.0 and the epicentral distance less than 300 km. The result not only improves the earthquake disaster assessment and assistant decision system in Jiangsu Province but also has wide significance in seismic risk analysis and other areas.关键词
江苏及邻区/地震烈度/衰减关系/多元稳健回归Key words
Jiangsu and its adjacent areas/seismic intensity/attenuation law/multiple robust regression引用本文复制引用
何奕成,徐年,吴珍云,郑黄海,王琛..江苏及邻区地震烈度衰减关系[J].地震地磁观测与研究,2018,39(1):60-66,7.基金项目
江苏省地震局青年科学基金(项目编号:201606) （项目编号:201606）
江苏省自然科学基金(项目编号:BK20131454) （项目编号:BK20131454）
