| 2018年永清M_S 4.3地震前易县地震台形变异常分析 |
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| 引用本文： | 刘海,云萌,王慧,李均良,张海洋,杨雅慧.2018年永清M_S 4.3地震前易县地震台形变异常分析[J].地震地磁观测与研究,2019,40(1):102-106. |
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| 作者姓名： | 刘海 云萌 王慧 李均良 张海洋 杨雅慧 |
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| 作者单位： | 中国河北 074211 河北省地震局易县地震台;中国河北 071000 河北省地震局保定中心台;中国河北 065899 河北省地震局文安地震台 |
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| 摘 要： | 2018年2月12日18:31:36河北省廊坊市永清县MS 4.3地震发生前,易县地震台SS-Y型铟瓦棒伸缩仪和DSQ型水管倾斜仪记录出现不同程度的异常,从异常形态起始及持续时间、异常幅度和发震时刻进行分析,发现二者相对应,认为此次异常应为永清地震震前异常。
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| 关 键 词： | 易县地震台 形变观测 永清地震 异常形态 震前异常 |
Anomaly characteristics of deformation data of Yixian Seismic Station before Yongqing M_S 4.3 earthquake |
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| Liu Hai,Yun Meng,Wang Hui,Li Junliang,Zhang Haiyang,Yang Yahui.Anomaly characteristics of deformation data of Yixian Seismic Station before Yongqing M_S 4.3 earthquake[J].Seismological and Geomagnetic Observation and Research,2019,40(1):102-106. |
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| Authors: | Liu Hai Yun Meng Wang Hui Li Junliang Zhang Haiyang Yang Yahui |
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| Institution: | (Yixian Seismic Station, Hebei Earthquake Agency, Hebei Province 074211, China;Baoding Center Seismic Station, Hebei Earthquake Agency, Hebei Province 071000, China;Wen’an Seismic Station, Hebei Earthquake Agency, Hebei Province 065899, China) |
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| Abstract: | Before the magnitude 4.3 earthquake in Yongqing County, Langfang City, Hebei Province, China, February 18, 2018, the data of the SS-Y indium rod extensometer and the DSQ water tube tiltmeter inclinometer were some abnormal in various at Yixian Seismic Station in Hebei Province. The anomaly amplitude, and anomaly time from the initial and duration of the anomaly were analyzed. This anomaly corresponds to the Yongqing earthquake in time and is likely to be a preseismic anomaly to the earthquake. |
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| Keywords: | Yixian Seismic Station deformation observation Yongqing MS4 3 earthquake abnormal shape pre-quake anomaly |
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