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Title:: The Accelertion Records Analysis of the M5.1 Wen'an Hebei Earthquke Recorded by the Capital Real-time Digital Strong Motion Network

Author(s):: BIAN Zhen-fu; YAO Lan-yu; GUO Wei; YUE Xiu-xia; (Earthquake Administration of Tianjin Municipality,Tianjing 300201,China)

Keywords:: strong motion record; acceleration peak value; attenuation; isogram

摘要:: 通过分析首都圈实时强震动台网对文安5.1级地震的强震动记录及其加速度等值线图的对比,结果表明:(1)仪器记录峰值加速度衰减特性可以反映地震宏观特征;(2)仪器记录峰值加速度衰减关系可以作为基岩水平理论衰减关系峰值加速度的一种标定方法;(3)这次地震为我们今后进行强震动观测提供了重要的经验启示及改进方向。

Abstract:: This article has processed the acceleration records of the earthquake which occurred in Wen'an county recorded by the capital real-time strong motion network,and has drawn up three component record peak value acceleration isogram and the bedrock horizontal theory attenuation peak value acceleration isogram,through the analysis of the earthquake record and four acceleration isogram contrastive analysis.The result indicated:(1)the characteristic of the instrument record peak value acceleration attenuation may reflect the earthquake macroscopic characteristic;(2)the instrument record peak value acceleration attenuation may be one method of calibrating the bedrock horizontal theory attenuation peak value acceleration;(3)this earthquake will carry on the strong motion observation for us to provide the important experience from now on to inspire and to improve the direction of strong motion observation development.