| 磐石大旺地震的发震构造及前兆变化特征 |
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| 引用本文： | 李伟,郑传芳.磐石大旺地震的发震构造及前兆变化特征[J].东北地震研究,1992(2). |
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| 作者姓名： | 李伟 郑传芳 |
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| 作者单位： | 吉林省地震局，吉林省地震局 长春 130022，长春 130022 |
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| 摘 要： | 本文给出了1990年10月21日磐石大旺地震的震源机制解,探讨了大旺地震的地质构造背景及其发震构造。总结分析了大旺地震前后吉林省中部地区地倾斜观测出现的异常变化及特征,结果表明:异常时间上有阶段性,异常形态上有阶跃、突跳,异常分布与构造有关。
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| 关 键 词： | 发震构造 前兆变化特征 |
EARTHQUAKE TECTONIC AND PRECURSOR CHAKACTERISTIC OF DAWANG SHOCK IN PANSHI |
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| Li Wei,Zheng chuanfang earthquake bureau of Jilin province.EARTHQUAKE TECTONIC AND PRECURSOR CHAKACTERISTIC OF DAWANG SHOCK IN PANSHI[J].Seismological Research of Northeast China,1992(2). |
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| Authors: | Li Wei Zheng chuanfang earthquake bureau of Jilin province |
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| Institution: | Li Wei;Zheng chuanfang earthquake bureau of Jilin province 130022 |
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| Abstract: | In this paper we give out the mechanism of earthquake focal of Dawang shock
(1990, 10, 21), and research background of geologic structure and seismic tectonic of the
earthquake. The anomaly characteristic of geotilt observations in the middle part of Jilin
Province before and after Dawang shock is analyzed. tiltmeters observation data in middle
The results show that anomaly time is staged, anomaly formation appears in stage leap and
sudden jump, and anomaly distribution is related to structure. |
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| Keywords: | seismic tectonic precursor characteristic |
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