| 对大灰厂台形变异常的再认识 |
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| 引用本文： | 杨炳顺.对大灰厂台形变异常的再认识[J].内陆地震,1992(3). |
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| 作者姓名： | 杨炳顺 |
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| 作者单位： | 国家地震局第一地形变监测中心 天津 |
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| 摘 要： | 按照文献1]的思路和方法,利用历史观测数据,通过建立大灰厂台形变资料动态预估方程,对唐山地震前后两次形变异常重新作了分析。结果表明,1975年前后和1980年前后的两次形变异常情况类似,且具有较好的预估关系,其它年份的资料也有重复的特点。其特点与地震孕育引起的地壳形变关系不大。因此把1975年形变异常作为唐山地震的前兆信息依据不足,两次异常都是由于干扰因素影响所致。
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| 关 键 词： | 大灰厂台 形变异常 干扰因素 动态预估 |
REAPPROACHING THE CRUSTAL DEFORMATION ON DAHUICHANG SEISMOLOGICAL STATION |
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| Yang Binshun.REAPPROACHING THE CRUSTAL DEFORMATION ON DAHUICHANG SEISMOLOGICAL STATION[J].Inland Earthquake,1992(3). |
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| Authors: | Yang Binshun |
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| Abstract: | Following the idea and method of Reference 1, with the use of historical successive observational records,a new kinematic prediction equation about deformation data of Dahuichang was established in this paper,and some way of analysis are given again. The conclusion showed that there were simular responses and prediction relations between the two deformations around Tangshan earthquake (to be precise,the first was in 1975,the second in 1980). The data in the following other years also showed the same characteristics. But this characteristics had no visible relations with the crustal deformations pregnant with earthquakes, so it lacks of enough evidence in taking the first crustal deformation anomaly as the basic precursory information of Tangshan great shock. The author tried to give more reasonable interpretations about the causes of the crustal deformation with the help of establishing mathematical model. At last,the author holds that historical successive data can be used as a touchstone to test each transformation of the data of seismological station and to recognize all procedures. |
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| Keywords: | Seismological station of Dahuichang Anomaly of deformation External interference Regime prediction |
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