芦山地震数字强震动观测记录及其初步分析  

Preliminary analysis on the strong motion observation records of the M7.0 Lushan Earthquake

作　　者：赖敏[1] 朱建钢[1] 朱永莉[1] 

机构地区：[1]四川省地震局,四川成都610041

出　　处：《四川地震》2014年第2期6-11,共6页Earthquake Research in Sichuan

摘　　要：利用芦山地震获取的数字强震动记录资料在地震学和地震工程学领域的应用进行了尝试,得到如下结论:①使用近场加速度可以计算地震震级、震中位置以及震源深度;②在芦山地震中计算的仪器烈度与考察烈度误差小于±1°;③芦山地震中的地震动方向性效应特征比较明显的是地震烈度以及地震峰值加速度的衰减特性。The strong motion data of the M7.0 Lushan Earthquake were collected and analyzed.Our analyzed result shows that the parameters such as magnitude,epicenter and the depth of earthquake are calculated with the near field observation data of strong motion.The seismic intensity difference between the results calculated from instrument data and from the field investigation is 1 unit degree.The directivity characteristics of seismic intensity distribution and earthquake peak acceleration attenuation are clear.

关 键 词：仪器烈度 反应谱 地震方向性效应 

分 类 号：P315.73[天文地球—地震学]