摘要
利用1990年以来福建沿海地区流动地磁观测资料,以|δfij|≥3nT为异常指标,对同一期|δfij|≥3nT的测点数作统计,分析研究1990年以来发生在福建地区及其近海域的地震与地磁异常变化的关系,结果表明,福建沿海地区流动地磁变化与福建省东南沿海及其近海域>ML4.0级的地震存在较好的对应关系,但对福建省中西部地区映震能力较差。
Based on the mobile geomagnetic observation data in Fujian coastal areas since 1990 and using δfij≥3nT as an anomaly index, the relationship between earthquakes occurred and mobile geomagnetic anomalous variations during the same observation period in Fujian and offshore areas are studied. The results show that there is a good relation between the mobile geomagnetic anomalies and ML〉4.0 earthquakes occurred in Fujian coastal areas.
出处
《华南地震》
2008年第4期149-155,共7页
South China Journal of Seismology
关键词
地磁异常
映震能力
福建沿海地区
Geomagnetic anomaly, Earthquake reflecting ability, Fujian coastal areas
