【摘要】 文中介绍了芦山7.0级地震的主震和余震强震动观测,对国家强震动台网中心收集的芦山主余震1243组三分量加速度记录进行了数据格式转换、元数据录入、零线调整、未校正加速度数据格式标准化。96条记录峰值加速度大于100 Gal,838组三分量加速度记录的震中距小于100 km,其中宝兴地办台记录处理后得到的东西向加速度峰值为1 005.4 Gal,这是我国大陆地区首次获得峰值加速度超过1 g的强震动记录。彭县—灌县近断层附近的10个强震动台站获得的记录平均能量持时为23.2 s,基线校正后得到的永久位移普遍较小。更多还原

【Abstract】 In this paper,mainshock and aftershocks strong motion observations of Lushan M7. 0 are introduced,a total of 1243 three-component acceleration records are processed and analyzed preliminarily by China Strong Motion Net Center. In order to get the standard format uncorrected accelerograms,the seismic original records are transformed in data format,made baseline correction,as well as the metadata entry were done routinely before the normal analysis. There are 96 strong motion records with the peak ground acceleration( PGA) larger than 100 Gal at the fault. The epicentral distance of 838 three-component acceleration records is less than 100 km. The PGA of Baoxingdiban station reaches 1 005. 4 Gal in the direction of east-west after zero-line initialization,which firstly breaks through 1g in the mainland of China. The average energy duration reaches 23. 2s for 10 strong motion stations nearer to Pengxian-Guanxian fault. Permanent displacements exist in near-field strong motion records are smaller.更多还原