何应文, 段勇, 杨树峰, 张源, 杨海鹏, 杨建文, 字承柱. 云龙MS5.0地震前云龙台的定点形变异常[J]. 华北地震科学, 2017, 35(4): 60-65. DOI: 10.3969/j.issn.1003-1375.2017.04.011
引用本文: 何应文, 段勇, 杨树峰, 张源, 杨海鹏, 杨建文, 字承柱. 云龙MS5.0地震前云龙台的定点形变异常[J]. 华北地震科学, 2017, 35(4): 60-65. DOI: 10.3969/j.issn.1003-1375.2017.04.011
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HE Ying-wen, DUAN Yong, YANG Shu-feng, ZHANG-yuan, YANG Hai-peng, YANG Jian-wen, ZI Cheng-zhu. Fixed-point Deformation Anomalies before Yunlong MS5.0 Earthquake[J]. North China Earthquake Sciences, 2017, 35(4): 60-65. DOI: 10.3969/j.issn.1003-1375.2017.04.011
Citation: HE Ying-wen, DUAN Yong, YANG Shu-feng, ZHANG-yuan, YANG Hai-peng, YANG Jian-wen, ZI Cheng-zhu. Fixed-point Deformation Anomalies before Yunlong MS5.0 Earthquake[J]. North China Earthquake Sciences, 2017, 35(4): 60-65. DOI: 10.3969/j.issn.1003-1375.2017.04.011
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云龙MS5.0地震前云龙台的定点形变异常

Fixed-point Deformation Anomalies before Yunlong MS5.0 Earthquake

    摘要
  • 摘要: 利用形态分析、一阶差分、矢量合成和平均速率合成法对2016年5月18日云龙5.0级地震前后云龙台形变资料进行处理分析。结果表明，云龙5.0级地震前出现了明显的中短临异常，主要表现为年变幅观测曲线畸变、日均值曲线转折甚至打破年变、矢量转向、速率变化超2倍均方差等特征。

     

    Abstract: We use morphological analysis, first-order difference, vector synthesis and average rate of synthesis method to analyze the Yunlong station deformation data before and after the Yunlong MS5.0 earthquake on May 18th 2016, the results show that the annual variation curve, daily mean values and the ratio appear extremely anomalies before the MS5.0 earthquake. The anomalies are mainly of annual variation range distortion, daily mean value turning even annual variation breaking, vector swerve, and velocity changes exceed 2 times the mean variance et al.

     

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