青海海西地震前的电磁异常特征
Electromagnetic anomalies features at Haixi Seismic Station in Qinghai Province before Haixi earthquakes
王亚丽 1屠泓为 2唐廷梅3
作者信息
- 1. 中国北京100045 中国地震台网中心
- 2. 中国西宁810001 青海省地震局
- 3. 中国济南250014 山东省地震局
- 折叠
摘要
2008年11月-2009年11月,青海省海西蒙古族自治州先后发生多次地震,嘉峪关地震台地磁转换函数A在震前存在异常.分别以都兰和大武地震台作为参考,嘉峪关和格尔木地震台空间相关系数震前存在显著的低值异常,异常台站沿北东向分布,而非断裂方向.研究结果表明,嘉峪关和格尔木地震台地磁观测对该地区的地震具有较好的前兆意义.
Abstract
Autonomous prefecture of the Mongolia has occurred many times of earthquake from Nov. 2008 to Nov. 2009 in Qinghai Province. Jiayuguan geomagnetic transfer function of A before the earthquake anomaly. Respectively with Dulan station and large desk reference, Jiayuguan and Golmud stations before the earthquake spatial correlation coefficient in earthquake is significantly low value anomaly, anomaly stations along the North-East to the distribution, not along the fracture direction, its mechanism is still unknown. Research results show that the geomagnetic observation in Jiayuguan and Golmud to the area of the earthquake has good precursory significance.
关键词
海西地震/地磁转换函数/地磁空间相关性Key words
Haixi earthquake/geomagnetic transfer function/geomagnetic spatial correlation引用本文复制引用
基金项目
"十二五"国家科技支撑计划项目(2012BAK19B02-03)
出版年
2012
国家科技期刊平台
NSTL
万方数据