| 新疆喀什地区1996年11月震前超低频电磁辐射异常与震源方向的关系 |
| |
| 引用本文： | 杨少峰,杜爱民.新疆喀什地区1996年11月震前超低频电磁辐射异常与震源方向的关系[J].地球物理学报,2002,45(1):101-108. |
| |
| 作者姓名： | 杨少峰 杜爱民 |
| |
| 作者单位： | 中国科学院地质与地球物理研究所,北京,100101 |
| |
| 基金项目： | 国家自然科学基金资助的项目 ( 4 94 74 2 37) |
| |
| 摘 要： | 研究了1996年11月19-27日在新疆喀什地区连续发生6次4.5级以上地震前记录到的超低频电磁辐射异常现象的偏振特性,发现震前记录到的该异常用0.0-0.16Hz的带通滤波器滤波后,水平磁场分量的偏振近似为线偏振,且震前1天的偏振主轴方向日均值与喀什台到强震震源的方向之间有近乎垂直的关系.
|
| 关 键 词： | 喀什地区 超低频电磁辐射异常 震源方向 |
| 文章编号： | 0001-5733(2002)01-0101-08 |
| 收稿时间： | 2000-09-05 |
RELATIONSHIP BETWEEN ABNORMAL ULF ELECTROMAGNETIC EMISSION AND THE DIRECTION OF SOURCES BEFORE EARTHQUAKES IN KASHI REGION OF XINJIANG IN NOVEMBER, 1996 |
| |
| YANG SHAO-FENG DU AI-MIN.RELATIONSHIP BETWEEN ABNORMAL ULF ELECTROMAGNETIC EMISSION AND THE DIRECTION OF SOURCES BEFORE EARTHQUAKES IN KASHI REGION OF XINJIANG IN NOVEMBER, 1996[J].Chinese Journal of Geophysics,2002,45(1):101-108. |
| |
| Authors: | YANG SHAO-FENG DU AI-MIN |
| |
| Institution: | Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101, China |
| |
| Abstract: | In this paper the polarization characteristics of abnormal ULF electromagnetic emissions before each of 6 earthquakes taking place at Kashi region of Xinjiang from Nov. 17 to 29 in 1996 are studied. It is found that the polarizations of abnormal ULF electromagnetic emissions recorded before earthquake are almost linear after band-pass filter with frequency range of 0 08-0 16Hz. The direction of earthquake source is almost perpendicular to the diurnal average azimuth of major polarization axis in one day before each earthquake. |
| |
| Keywords: | Kashi region Abnormality of ULF electromagnetic emission Direction of earthquake source |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地球物理学报》浏览原始摘要信息 |
| 点击此处可从《地球物理学报》下载免费的PDF全文 |
