摘要
川滇地区在１９９４～１９９６年间发生了多次中强地震。本文作者将磁暴的初始－主相－恢复过程作为地球磁场对太阳风加卸载的响应过程，计算分析了西南地区１０个地磁台站磁场垂直分量Ｚ的暴时场ＤＳｔ（ｚ）中的暴时扰日变化，以及ＤＳ（ｚ）场的加卸载响应比值Ｐ（ｚ）的时空分布，发现Ｐ（ｚ）的高值区即是未来４４天至１５个月内发生中强地震的地区。作者还对震区和非震区的Ｐ（ｚ）高值与地震和气象灾害之间的关系进行了粗略的讨论。
Many earthquakes had been occurred during the period of 1994～1996 in Sichuan and Yunnan Provinces, Southwest China. Taking the process of the initial phase main phase recovery phase of the magnetic storm as the process of load unload response of the geomagnetic field to the solar wind, we have estimated and analyzed the distribution in time and space of the load unload response ratio P(z) of the storm time disturbance daily variation in the storm time of the vertical component Z of the geomagnetic field at ten stations in Southwest China and found that the region with high ratio P(z) was just the region where the moderately strong earthquakes would occur from 44 days to 15 months later. The relationship between the high ratio P(z) and weather disasters in both seismic and non seismic areas has been discussed briefly.
出处
《中国地震》
CSCD
北大核心
1998年第2期190-196,共7页
Earthquake Research in China
基金
国家地震局95-04-01课题
关键词
磁暴
太阳风
加卸载响应
地球磁场
地震预报
Magnetic storm, Load Unload response of solar wind, Seismogeomagnetic relationship
