| 1986年德都中强震群地震活动性再研究 |
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| 引用本文： | 许晓燕,张凤鸣.1986年德都中强震群地震活动性再研究[J].东北地震研究,1999,15(3):18-24. |
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| 作者姓名： | 许晓燕 张凤鸣 |
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| 作者单位： | 黑龙江省地震局!哈尔滨１５００９０ |
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| 摘 要： | 本文运用“八五”以来地震短临预报攻关成果,对黑龙江省１９８６年德都中强地震前后地震活动性资料进行了再研究,结果表明,震前ｂ值无异常,η值,∑（ｔ）等地震活动性参数在一至一年半时段内有不同程度的异常显示,地震强度因子Ｍｆ值未出现高值异常,地震演化指数ＹＨ值和地震算法复杂性Ａｃ值的异常发展与“八五”短临地震预报判据相反,广义时间维Ｄ１和广义空间维Ｄｓ参数的异常发展过程符合“八五”地震短临预报判定指标。
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| 关 键 词： | 地震活动性 地震前兆异常 预报判定指标 强震群 |
FURTHER STUDY ON SEISMICITY OF DEDU MODERATE EARTHQUAKES SWARM IN 1986 |
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| Xu Xiaoyan,Zhang Fengming,Meng xiansen,Jiang Jinhua.FURTHER STUDY ON SEISMICITY OF DEDU MODERATE EARTHQUAKES SWARM IN 1986[J].Seismological Research of Northeast China,1999,15(3):18-24. |
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| Authors: | Xu Xiaoyan Zhang Fengming Meng xiansen Jiang Jinhua |
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| Abstract: | The method of "85" short-term earthquake prediction is used to further research into seismicactivities of Dedu moderate strong earthquakes swarm in 1986. The result shows that b-value has been no abnormalphenomena before the earthquakes. In the period 1~1 .5years before then n -value and (t)-value has changes tovarying degrees. The seismic magnitude factor M- value has not been shown abnormal in high value. Theabnormal developing criterion opposite to seismic evolution index YH-value and algorithmic complexity Ac-valueof "85". The anomaly developing criterion conform to reality of generalized time fractal Dt-value and generalizedspace fractal D -value of "85". |
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| Keywords: | Seismic activity Earthquake precursor anomaly Prediction index Dedu |
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