| 强震前b值与C(n)值变化的对比研究 |
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| 引用本文： | 王继英.强震前b值与C(n)值变化的对比研究[J].西北地震学报,1998,20(3):83-87. |
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| 作者姓名： | 王继英 |
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| 作者单位： | 中国地震局第二地形变监测中心 |
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| 摘 要： | 对比研究了中国西部地区发生的６次中强地震前ｂ值与Ｃ（ｎ）值异常变化特征．６次地震前，ｂ值和Ｃ（ｎ）值都有异常显示．ｂ值异常一般出现较早，最早出现在震前１年左右；Ｃ（ｎ）值异常大多在震前半年至２～３个月出现．ｂ值曲线异常形态一般不太典型，而Ｃ（ｎ）值异常形态较典型，表现为峰值异常．地震前２种异常同时出现．还对计算上述参数的空间范围的选取及窗长和步长的选取进行了讨论．
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| 关 键 词： | 地震活动异常 异常持续时间 异常形态 b值 C（n）值 |
| 收稿时间： | 1997/1/21 0:00:00 |
CONTRAST AND STUDY ON VARIATION OF SEISMOMETRY INDEXES b AND C(n) VALUES BEFORE STRONG EARTHQUAKE |
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| WANG Jiying.CONTRAST AND STUDY ON VARIATION OF SEISMOMETRY INDEXES b AND C(n) VALUES BEFORE STRONG EARTHQUAKE[J].Northwestern Seismological Journal,1998,20(3):83-87. |
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| Authors: | WANG Jiying |
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| Institution: | The Second Crustal Deformation Monitoring Center, CSB, Xi''an 710054 |
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| Abstract: | By contrasting and studying the abnormal variation characteristics of b and C(n) values before six moderately strong earthquakes in the west China,it is found that the shape,appearance time from beginning to end,duration time,combination forms,and so on of abnormality of the two indexes can be used to predict the possible occurrence time of future event.In addition,respectively suitable ranges of the two indexes are discussed. |
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| Keywords: | Seismicity anomaly Anomaly duration time Anomalous shape Anomalous character b value C(n) value |
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