| 2016年1月21日青海门源6.4级地震强震动记录及特征分析 |
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| 引用本文： | 徐钦,李佐唐,何新社,王文才.2016年1月21日青海门源6.4级地震强震动记录及特征分析[J].西北地震学报,2016,38(2):327-332. |
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| 作者姓名： | 徐钦 李佐唐 何新社 王文才 |
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| 作者单位： | 中国地震局兰州地震研究所, 甘肃 兰州 730000;甘肃省地震局, 甘肃 兰州 730000;中国地震局兰州地震研究所, 甘肃 兰州 730000;甘肃省地震局, 甘肃 兰州 730000;中国地震局兰州地震研究所, 甘肃 兰州 730000;甘肃省地震局, 甘肃 兰州 730000;中国地震局兰州地震研究所, 甘肃 兰州 730000;甘肃省地震局, 甘肃 兰州 730000 |
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| 基金项目： | 中国地震局兰州地震研究所地震科技发展基金(2015ZB02);甘肃省强震台网运行与维护(JC005) |
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| 摘 要： | 2016年1月21日青海海北州门源县发生6.4级地震,西北强震动台网中心共收集到70组三分向加速度记录。在对强震记录进行常规处理后,给出了207条零基线校正后的三分向峰值加速度值(PGA);统计PGA随震中距衰减趋势,绘制了水平向PGA等值线分布图;选取近场典型台站的加速度记录进行分析,绘制出校正后的加速度、速度和位移时程曲线以及加速度反应谱。这些地震动特征可为我国西部工程震害调查提供重要的参考资料。
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| 关 键 词： | 青海门源6.4级地震 强震动记录 峰值加速度 加速度反应谱 |
| 收稿时间： | 2016/1/31 0:00:00 |
Strong Ground Motion Records and Its Characteristics in the Menyuan MS6.6 Earthquake of January 21, 2016 |
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| XU Qin,LI Zuo-tang,HE Xin-she and WANG Wen-cai.Strong Ground Motion Records and Its Characteristics in the Menyuan MS6.6 Earthquake of January 21, 2016[J].Northwestern Seismological Journal,2016,38(2):327-332. |
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| Authors: | XU Qin LI Zuo-tang HE Xin-she and WANG Wen-cai |
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| Institution: | Lanzhou Institute of Seismology, CEA, Lanzhou 730000, Gansu, China;Earthquake Administration of Gansu Province, Lanzhou 730000, Gansu, China;Lanzhou Institute of Seismology, CEA, Lanzhou 730000, Gansu, China;Earthquake Administration of Gansu Province, Lanzhou 730000, Gansu, China;Lanzhou Institute of Seismology, CEA, Lanzhou 730000, Gansu, China;Earthquake Administration of Gansu Province, Lanzhou 730000, Gansu, China;Lanzhou Institute of Seismology, CEA, Lanzhou 730000, Gansu, China;Earthquake Administration of Gansu Province, Lanzhou 730000, Gansu, China |
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| Abstract: | A MS6.4 earthquake occurred at Menyuan county,Haibei city,Qinghai province,China on January 21,2016.The Northwestern Strong Motion Network Center collected 70 groups of three-component acceleration records of this earthquake.The characteristics of these records were then analyzed,including the spatial locations of the stations,and 207 peak ground accelerations (PGAs),recorded by the strong motion stations,were calculated after the zero baseline was corrected.In this study,we analyzed the attenuation tendencies of the PGAs with respect to the epicentral distance,and drew a contour map of the horizontal PGAs.We selected the acceleration records of some typical stations,and plotted the acceleration,velocity,and displacement time-history curves,as well as the acceleration response spectra.The study results provide an important reference for seismic damage investigation in Western China. |
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| Keywords: | Menyuan MS6 4 earthquake strong motion records peak acceleration acceleration response spectrum |
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