灾害学2013，Vol.28Issue(1)：1-5,5.
汶川大地震宏观震中问题的讨论
Discussion on Macro-epicenter of Wenchuan Earthquake
摘要
Abstract
The macro-epicenter of Wenchuan earthquake is qualitatively determined by the method of combining the characteristics of earthquake-induced landslides and collapses with ground destructiveness, and the geometric center of the extreme seismic zone. Results show that Wenchuan earthquake should have two macro-epicenters. One is Niujuan canyon in Yingxiu extreme seismic region with coordinates as 31. 045 6°N, 103. 455 6°E, and the other is Beichuan county in Beichuan extreme seismic zone with coordinates as 31. 863 7°N, 104. 361 0°E. Two judging methods are compared, and the former is proved to be more in line with the law of earthquake destruction in the mountainous areas with special geological and geomorphological environment.关键词
汶川8级地震/宏观震中/震中判定Key words
Wenchuan M8. 0 earthquake/ macro-epicenter/ epicenter determination分类
天文与地球科学引用本文复制引用
乔建平,黄栋,杨宗佶,孟华君..汶川大地震宏观震中问题的讨论[J].灾害学,2013,28(1):1-5,5.基金项目
"十二五"科技支撑计划项目(2011BAK12B01) （2011BAK12B01）
国家重点基础研究("九七三")项目(2010CB731504) （"九七三"）
