摘要
分析台湾强震前福建地区地磁台站谐波振幅比异常特征,发现地震基本上都是发生在地磁谐波振幅比趋势性下降之后的转折期、恢复上升期及恢复后的初期阶段,6级地震的异常持续时间为1~3年,与目前谐波振幅比相关研究的结果较为一致。
This article briefly describes the abnormal characteristics of geomagnetic harmonic wave amplitude ratio at the geomagnetic stations in Fujian before the strong earthquakes occurred in Taiwan. The results show that most of the strong earthquakes occurred in the transition phase, restoring and rising phase, and the early phase of the restoring after geomagnetic harmonic wave amplitude ratio＇s trend decrease. The anomaly before the MS6 earthquakes usually lasted for 1-3 years, these results are consistent with the current research of geomagnetic harmonic wave amplitude ratio.
出处
《华南地震》
2016年第3期56-60,共5页
South China Journal of Seismology
关键词
地磁场
谐波振幅比
地震
异常
Geomagnetic field
Harmonic wave amplitude ratio
Earthquake
Anomaly
