| 应用双差定位法对吉林区域中小地震及乾安-前郭5.0级地震余震的重新定位 |
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| 引用本文： | 温岩,温洪涛,张晨侠.应用双差定位法对吉林区域中小地震及乾安-前郭5.0级地震余震的重新定位[J].东北地震研究,2007,23(1):2-7. |
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| 作者姓名： | 温岩 温洪涛 张晨侠 |
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| 作者单位： | 吉林省地震局,吉林,长春,130022 |
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| 摘 要： | 本文利用双差定位法对发生在吉林区域317次中小地震进行重新定位,得到265次地震定位结果,显示震中分布总体格局变化不大,但局部地区地震有向构造带及其交汇处集中的变化,震群分布更加集中,震源深度主要集中在0～25km。对乾安—前郭M5.0级地震余震序列双差定位,结果显示地震更加集中于极震区,方向呈北偏东,深度分布在10KM左右。研究结果初步表明该方法定位精度比较高,无论在残差、测定误差、震中分布还是震源深度方面,都比原来定位结果有较大改进。
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| 关 键 词： | 双差定位法 地震定位 余震序列 |
| 文章编号： | 1004-2865（2007）01-02-06 |
| 收稿时间： | 2006-10 |
| 修稿时间： | 2006年10月1日 |
RELOCATION OF THE MODERATE AND SMALL EARTHQUAKE IN JILIN AREA AND QIAN'AN-QIANGUO 5.0 EARTHQUAKE SEQUENCE USING THE DOUBLE DIFFERENCE LOCATION ALGORITHM |
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| Wen Yan,Wen Hongtao,Zhang Chenxia.RELOCATION OF THE MODERATE AND SMALL EARTHQUAKE IN JILIN AREA AND QIAN''''AN-QIANGUO 5.0 EARTHQUAKE SEQUENCE USING THE DOUBLE DIFFERENCE LOCATION ALGORITHM[J].Seismological Research of Northeast China,2007,23(1):2-7. |
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| Authors: | Wen Yan Wen Hongtao Zhang Chenxia |
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| Institution: | Earthquake Administration of Jilin Province;Jilin Changchun 130022;China |
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| Abstract: | In this paper,we relocate 317 moderate and small earthquakes in Jilin area using the double difference location algorithm.265 earthquakes location result is obtained,which shows epicenter distribution pattern has less variation,but earthquake located in partial area have tendency to tectonic zone and its inter cross area.Earthquake cluster distribute more focusing.Focus depth distributes from 0 to 25 km mainly.The result of after-shock of Qianan-Qianguo 5.0 earthquake located by using double difference loca... |
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| Keywords: | double difference location method earthquake location after-shock sequence |
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