2009年姚安M_S6.0强震动应急观测  

Emergent Strong-motion Observation of Yao'an M_S6.0 Earthquake in 2009

作　　者：李世成[1] 崔建文[1] 张潜[1] 高东[1] 刘琼仙[1] 段建新[1] 包一峰[1] 黄晓东[1] 

机构地区：[1]云南省地震局,云南昆明650224

出　　处：《地震研究》2011年第3期322-330,404,共9页Journal of Seismological Research

基　　金：行业基金项目(200808061):"宁洱6.4级地震现场综合考察和研究"子项目"基于强震动记录的烈度复核"资助

摘　　要：介绍了2009年姚安MS6.0地震强震动应急流动观测台站的布设、记录获取及初步处理结果等情况,并对此次地震余震的高加速度峰值、低地震烈度等有关问题予以讨论,结果认为:场地条件对地面地震动峰值影响较大;高地震动峰值的相对持时短是此次4.7级余震震害轻的主要原因。Firstly, we introduce the emergency actions we took against the Yao＇an Ms6.0 earthquake on July 9, 2009, such as the deployment of the mobile stations of strong motion, the capture and process of the strong motion recordings of the Yao＇an aftershoeks, etc. Then, through discussing the phenomenon of the highpeak acceleration and low intensity of the Ms4. 7 aftershock, we land that the site condition has a significant effect on the peak of ground motion, and it is the short relative-duration of the peak-value of the aftershock that mainly caused serious damage despite the low intensity.

关 键 词：姚安地震 流动观测 峰值加速度 震灾快评 

分 类 号：P315.9[天文地球—地震学]