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| 冀豫环流动磁测异常与中等地震关系研究 | |
| 引用本文： | 乔子云,张建国,焦成丽.冀豫环流动磁测异常与中等地震关系研究[J].地震地磁观测与研究,2009,30(4):1-6. |
| 作者姓名： | 乔子云 张建国 焦成丽 |
| 作者单位： | 1. 中国石家庄,050021,河北省地震局;中国长春,130026,吉林大学地球探测科学与技术学院 2. 中国河北,056001,邯郸中心地震台;中国长春,130026,吉林大学地球探测科学与技术学院 3. 中国河北,067000,承德中心地震台 |
| 基金项目： | "十一五"国家科技支撑计划子专题 |
| 摘 要： | 利用冀豫环流动地磁观测资料，绘制单点时序变化曲线，采用常规差值法，计算相邻两期的差值，绘制整个测区的平面等值线；分析研究1998年以来测区周围发生的中等地震与流动地磁数据变化的关系。结果显示，冀豫环流磁异常与邻区的中等地震有一定的对应关系，震前有两个或多个测点同时出现异常，而且异常特征表现为上升正异常。 |
| 关 键 词： | 冀豫环 流动地磁观测 异常特征 |
Relationship of the mobile geomagnetic anomalies in Hebei and Henan circulation with medium earthquake in surrounding area |
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| Qiao Ziyun,Zhang Jianguo,Jiao Chengli.Relationship of the mobile geomagnetic anomalies in Hebei and Henan circulation with medium earthquake in surrounding area[J].Seismological and Geomagnetic Observation and Research,2009,30(4):1-6. | |
| Authors: | Qiao Ziyun Zhang Jianguo Jiao Chengli |
| Institution: | Qiao Ziyun , Zhang Jianguo and Jiao Chengli( 1 Earthquake Administration of Hebei Province, Shijiazhuang 050021, China 2 College of Geoexploration Science and Technology, Jilin University, Changchun 130026, China 3 Handan Seismic Station, Hebei Province 056001, China 4 Chengde Seismic Station, Hebei Province 067000, China) |
| Abstract: | Using the mobile geomagnetic observation data in Hebei and Henan circulation, the temporal sequence curves of single point is drawn,the difference values of two neighbor two issue are calculated by the routine difference algorithm, and the contour map of whole observational network are drawn. The relationship between the medium earthquake which occurred around area since 1998,and the mobile geomagnetic dates variation are studied. The results show that the mobile geomagnetic anomalies in Hebei and Henan circulation and medium earthquake surrounding area have certain corresponding relations. Anomaly appears simultaneously in two or many stations before earthquakes and the characteristic performance of the anomalies is rising positively. |
| Keywords: | Hebei and Henan circulation mobile geomagnetic observation anomaly characteristic |
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