孙学军，龙政强，潘岳怡. 广西靖西MS5.2地震震动图分析[J]. 华北地震科学，2020, 38（S2）：128-133. doi:10.3969/j.issn.1003−1375.2020.S2.020.
引用本文: 孙学军，龙政强，潘岳怡. 广西靖西MS5.2地震震动图分析[J]. 华北地震科学，2020, 38（S2）：128-133. doi:10.3969/j.issn.1003−1375.2020.S2.020.
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SUN Xuejun，LONG Zhengqiang，PAN Yueyi. Shake Map of the Guangxi Jingxi MS5.2 Earthquake[J]. North China Earthquake Sciences，2020, 38（S2）：128-133. doi:10.3969/j.issn.1003−1375.2020.S2.020.
Citation: SUN Xuejun，LONG Zhengqiang，PAN Yueyi. Shake Map of the Guangxi Jingxi MS5.2 Earthquake[J]. North China Earthquake Sciences，2020, 38（S2）：128-133. doi:10.3969/j.issn.1003−1375.2020.S2.020.
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广西靖西MS5.2地震震动图分析

Shake Map of the Guangxi Jingxi MS5.2 Earthquake

    摘要
  • 摘要: 利用地震台站地震动时程，基于地震动衰减规律和传播特征，进行0.1°×0.1°尺度的网格化离散点插值计算，并绘制时间间隔4 s的连续播放地震动图和峰值地震动等值线图，较好地显示出地震发生后地震动的传播过程及其衰减特征。计算结果表明，极震区水平向加速度最大值为55.08 cm/s2，相当于地震烈度VI度，与现场烈度调查结果基本一致。

     

    Abstract: Using the time history of ground motion, based on the attenuation law and propagation characteristics of ground motion, the interpolation calculation of grid discrete points in the scale of 0.1°×0.1° is carried out, and the continuous broadcast ground motion map and peak ground motion contour map with time interval of 4 s are drawn. It shows the propagation process and attenuation characteristics of ground motion after earthquake. The calculation results show that the maximum value of horizontal acceleration is 55.08 cm/s2, which is equivalent to seismic intensity VI. The calculation results are basically consistent with the field intensity survey results.

     

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