| 震(前)兆远场异常与德令哈6.6级地震临震特征分析 |
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| 引用本文： | 燕明芝,白亚平,梅秀苹,姚军,李春燕.震(前)兆远场异常与德令哈6.6级地震临震特征分析[J].地震地磁观测与研究,2004,25(3):14-23. |
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| 作者姓名： | 燕明芝 白亚平 梅秀苹 姚军 李春燕 |
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| 作者单位： | 中国,兰州,730000,甘肃省地震局;中国,兰州,730000,甘肃省地震局;中国,兰州,730000,甘肃省地震局;中国,兰州,730000,甘肃省地震局;中国,兰州,730000,甘肃省地震局 |
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| 摘 要： | 简要叙述了2003年4月17日发生在青海德令哈6．6级地震及异常台站概况。采用甘肃省内11个地电台共61个测项(其中电阻率28个测项、自然电位28个测项、大地电场5个测项)及地震活动空间扫描图像(频度场、6值、GL值)进行筛选，从中检索到了15项异常指标。经对数据的处理与临震异常特征分析，结果表明：震(前)兆异常信息的出现为6．6级地震事件的发生提供了临震异常判据；这些异常判据也可为将来地震的预测预报提供一定的参考依据。
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| 关 键 词： | 德令哈6.6级地震 地震活动 地电 震(前)兆异常 |
| 文章编号： | 1003-3246(2004)03-0014-10 |
| 修稿时间： | 2003年10月31 |
The Analysis of Short-term Characteristic and Precursor Abnormality Before the Ms6.6 Delingha, Qinghai Earth-quake |
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| Yan Mingzhi,Bai Yaping,Mei Xiuping,Yao Jun and Li Chunyan.The Analysis of Short-term Characteristic and Precursor Abnormality Before the Ms6.6 Delingha, Qinghai Earth-quake[J].Seismological and Geomagnetic Observation and Research,2004,25(3):14-23. |
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| Authors: | Yan Mingzhi Bai Yaping Mei Xiuping Yao Jun and Li Chunyan |
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| Abstract: | We have studied the Apt. 17, 2003 M S6.6 Delingha, Qinghai earthquake and the seismic abnormality using the data of the geo-electricity recorded in the 11 stations with 61 measure methods (including 28 geo-risistivity methods, 28 potential methods, 5 geo-electric field methods) and of seismicity special distribution (including seismic frequency field, b, GL). We picked out 15 abnormal indexes. The result shows that the long-distance field anomalous information of the geo-risistivity and the seismicity are the characteristic of short term and critical before the M S6.6 event, and they are usfull can apply reliable foundation to the earthquake prediction. |
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| Keywords: | the M S6 6 Delingha Qinghai earthquake geo-electricity precursor abnormality |
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