| 四川汶川8．0级地震前山西昔阳地震台体应变特征和同震效应研究 |
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| 引用本文： | 宋志英,王振江,吕永青,李素华,李佳辑.四川汶川8．0级地震前山西昔阳地震台体应变特征和同震效应研究[J].山西地震,2009(2):19-20. |
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| 作者姓名： | 宋志英 王振江 吕永青 李素华 李佳辑 |
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| 作者单位： | 1. 山西省地震局昔阳地震台,山西,昔阳,045300;太原大陆裂谷动力学国家野外科学观测研究站,山西,太原,030025
2. 西藏自治区地震局,西藏,拉萨,850001 |
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| 摘 要： | 该文对2008年5月12日四川汶川8．0级地震前山西昔阳地震台体积应变仪出现的异常变化进行了初步分析，结果表明，从3月29日出现的异常变化完全符合在实验研究岩石破裂时，主破裂前和破裂时显示出的突变变化特征。
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| 关 键 词： | 体应变 前兆特征 年变动态 |
Study on Body Strain Characteristics of Xiyang Seismological Station,Shanxi, before Wenchuan, Sichuan, 8.0 Earthquake and Coseismic Effect |
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| SONG Zhi-ying,WANG Zhen-jiang,LU Yong-qing,LI Shu-hua,LI Jia-ji.Study on Body Strain Characteristics of Xiyang Seismological Station,Shanxi, before Wenchuan, Sichuan, 8.0 Earthquake and Coseismic Effect[J].Earthquake Research in Shanxi,2009(2):19-20. |
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| Authors: | SONG Zhi-ying WANG Zhen-jiang LU Yong-qing LI Shu-hua LI Jia-ji |
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| Institution: | SONG Zhi-ying, WANG Zhen-jiang, LU Yong-qing, LI Shu-hua, LI Jia-ji (1. Xiyang Seismological Station of Earthquake Administration of Shanxi Province, Xiyang, Shanxi 045300, China; 2. National Continental Rift Valley Dynamics Observatory of Taiyuan, Taiyuan, Shanxi 030025, China; 3. Earthquake Administration of Tibet Autonomous Region, Lasha, Tibet 850000, China) |
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| Abstract: | Anomalous variations recorded by body strain instruments of Xiyang Seismological Station before the May 12, 2008 Wenchuan earthquake are preliminarily analyzed in this paper. The result indicates that the anomalous variation, having appeared since Mar. 29, is well coincided with the characteristics showed in experiments of rock fracture study that sharp changing turns up before main fracture and at the time of fracture. |
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| Keywords: | Body stain Precursor characteristics Annual variation |
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