沈阳台地磁短周期变化特征及其与附近小地震的关系  

RELATIONSHIP BETWEEN FEATURE OF GEOMAGNETIC SHORT PERIOD CHANGE AT SHENYANG STATION AND NEAR SMALL EARTHQUAKES

作　　者：钟国英[1] 曾小苹[2] 林云芳[2] 于明鑫[3] 董玉兰 

机构地区：[1]辽宁省地震局 [2]国家地震局地球物理所 [3]大连地震台 [4]辽宁省地震大队

出　　处：《防灾减灾学报》1989年第4期43-49,共7页Journal of Disaster Prevention And Reduction

摘　　要：本文对沈阳台1984～1985年地磁短周期扰动事件进行谱分析,认为:1,帕金森矢量转换函数A、B值随周期增大而平稳缓慢地增大,在周期T=120min时有最大值;2,在T=9～350min中T=150min的各参量出现异常1～3个月后,发生了岫岩哨子河M_L=4.0级地震,周期T=75min的各参量出现异常4～9个月后发生了大连老铁山M_L 4.5级地震。By spectrum analysis of geomagnetic short period disturbance recorded at Shenyang station during 1984—1985, We Consider that 1. A and B Value of transfer function of Parkinson vector raise slowly and steadily with increasing period. There is a maximum at T=120min. 2. XiuYan earthquake of M_L=4.0 occured after various parameters display anomaly of 1—3 months at T=150min when T=9—350min, and Dalian Shock of M_L=4.5 Occured after parameters of T=75min show anomaly of 4—9 months.

关 键 词：老铁山 转换函数 地震台 谱分析 高通滤波 地震研究 磁照图 岫岩 帕金 磁方位角 

分 类 号：P315[天文地球—地震学]