摘要
本文采用差值、相关分析、谐波分析等方法处理了1985年8月23日新疆乌恰7.4级地震前的地磁观测资料,发现喀什地磁台存在3—4个月的中短期异常,但与国内某些大震震例相比,异常幅度偏小。文章对此作了初步讨论。
The data of geomagnetic observation before Wuqia earthquake(Ms=7.4)on Aug,23,1985 in Xinjiang were handled with several methods such as difference values analysis,correlation analysis and harmonic analysis.It was found out that the vertical intensity of Kashi geomagnetic station had got a mid-shorfterm anomaly of 3-4 months,but the anomalous amplitude was somewhat smaller when compared with the examples of some of the large earthquakes in the country.
作者
李茂玮
孙信仁
王瑞琴
Li Maowei;Sun Xinren;Wang Ruiqin(Seismological Bureau of Xinjiang Uygur Autonomous Region,Urumqi)
出处
《内陆地震》
1988年第3期253-257,共5页
Inland Earthquake
关键词
震磁信息
幅度
Seismo magnetic information
Amplitude
