| 地震危险度D值在华北中强以上地震前的中期异常变化 |
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| 引用本文： | 戴维乐,王炜,宋俊高,周云好.地震危险度D值在华北中强以上地震前的中期异常变化[J].西北地震学报,1997,19(2):1-6. |
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| 作者姓名： | 戴维乐 王炜 宋俊高 周云好 |
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| 作者单位： | 安徽省地震局 |
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| 摘 要： | 用１９７２～１９９２年期间华北地区地震资料对地震危险度Ｄ值进行了空间扫描．结果表明，大部分中强以上地震前２～３ａ，在未来震中周围出现较大范围的Ｄ值中期异常区域．文中就Ｄ值用于中期预报的方法、预报效能、Ｄ值与实际地震活动的关系、计算结果的稳定性等问题进行了讨论
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| 关 键 词： | 华北 中期异常 地震预报 地震危险度D值 空间扫描 |
| 收稿时间： | 1996/4/30 0:00:00 |
THE MEDIUM-TERM ANOMALY VARIATION OF SEISMIC RISK DEGREE D-VALUE BEFORE MODERATE-STRONG EARTHQUAKES IN NORTH CHINA |
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| DAI Weile,WANG Wei,SONG Jungao and ZHOU Yunhao.THE MEDIUM-TERM ANOMALY VARIATION OF SEISMIC RISK DEGREE D-VALUE BEFORE MODERATE-STRONG EARTHQUAKES IN NORTH CHINA[J].Northwestern Seismological Journal,1997,19(2):1-6. |
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| Authors: | DAI Weile WANG Wei SONG Jungao and ZHOU Yunhao |
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| Institution: | Seismological Bureau of Anhui Province, Hefei 230031,Seismological Bureau of Anhui Province, Hefei 230031,Seismological Bureau of Anhui Province, Hefei 230031 and Seismological Bureau of Anhui Province, Hefei 230031 |
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| Abstract: | The seismic data from 1972 to 1992 in North China are used in spacial scanning of seismic risk degree D value in this paper.The result shows that there are large anomaly zones of D value around the future epicenter about 3 years before most moderate strong earthquakes.In this paper,the method using D value in medium term earthquake prediction,prediction ability,the relation of D value to real seismicity and the stability of computation are also discussed. |
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| Keywords: | North China Medium term anomaly Earthquake prediction Seismic risk degree D value Spatial scanning |
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