| 银川地震台重力观测在民乐山丹地震前异常分析 |
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| 引用本文： | 金涛,訾少刚,赵宁.银川地震台重力观测在民乐山丹地震前异常分析[J].地震地磁观测与研究,2005(Z1). |
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| 作者姓名： | 金涛 訾少刚 赵宁 |
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| 作者单位： | 银川基准地震台
中国宁夏回族自治区750001(金涛，訾少刚)，银川基准地震台 中国宁夏回族自治区750001(赵宁) |
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| 摘 要： | 对2003年度银川基准地震台重力观测资料进行潮汐分析和非潮汐分析,提取出2003年10月25日民乐山丹地震前3个月出现的异常信息,通过对银川台观测条件、仪器的工作情况和数据精度的分析,表明此异常信息可信,阐述一定距离范围内发生地震时,重力观测短临异常的形态特征。
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| 关 键 词： | 银川台重力 潮汐分析 非潮汐分析 民乐山丹 地震异常 |
Analysis of gravity anomaly in Yinchuan Seismic Station before Minle-Shandan earthquake |
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| Jin Tao,Zi Shaogang and Zhao Ning.Analysis of gravity anomaly in Yinchuan Seismic Station before Minle-Shandan earthquake[J].Seismological and Geomagnetic Observation and Research,2005(Z1). |
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| Authors: | Jin Tao Zi Shaogang and Zhao Ning |
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| Abstract: | Tide and no-tide analysis have been made to gravity observation data in Yinchuan Station in 2003.The anomalous information that appeared 3 months before Minle-Shandan Earthquake occurred in 25,October has been abstracted.Through analyses to observation condition,working situation of instrument and data precision of Yinchuan Station,the anomalous information has been showed to be certain.The shape features of the impending anomaly of gravity observation have been described when earthquakes occur in certain distance range. |
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| Keywords: | gravity of Yinchuan Station tide analysis no-tide analysis Minle-Shandan earthquake anomaly |
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