Abstract

Seismo-magnetic investigation can play an important role in the investigation of various phenomena connected with earthquakes. The main target of this study is to investigate the magnetic variations associated with the swarm seismic activity along the fault structures in Gulf of Aqaba. Instrumental seismicity of Aqaba Gulf and magnetic observations were collected and analyzed during the period of 1982–2009. Seismo-magnetic effects were investigated through comparisons of magnetic and earthquake activity for long term and diurnal variations during the observed period. The distribution of these changes exhibited a distinguishing pattern, which could be related to the seismicity in certain periods of high swarm seismic activity and/or strong earthquakes. The seismo-magnetic effects were increased slowly and gradually with swarms but they were increased abruptly with strong earthquakes. Physically, this difference in Sq manners between swarm and strong earthquakes could be interpreted in view of stress force due to earthquakes and gaps along the segments fault of Aqaba Gulf which controlled the rocks containing highly magnetic constituents. The authors concluded that the seismo-magnetic effects were appreciated as a dependent element on the seismic swarm and large earthquake variables. Each of swarm and strong earthquakes has a specific manner of seismo-magnetic effect. This can be used as a powerful tool as a short-term prediction for anticipating strong earthquakes along the segmented fault of Aqaba Gulf.

中文翻译：

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埃及亚喀巴断层湾沿岸群和强地震的地震磁效应

摘要

地震磁学调查在与地震有关的各种现象的调查中可以发挥重要作用。这项研究的主要目标是研究与亚喀巴湾断层结构上的群地震活动有关的磁变化。在1982-2009年期间，对亚喀巴湾的仪器地震活动和磁观测资料进行了收集和分析。通过比较观测期内长期和昼夜变化的磁和地震活动，研究了磁磁效应。这些变化的分布表现出明显的模式，这可能与高群地震活动和/或强地震的某些时期的地震活动性有关。随着群的增加，地磁效应逐渐增加，但在强烈地震中却突然增加。从物理上讲，群地震和强地震之间的Sq方式差异可以解释为地震和亚喀巴湾沿断层的缝隙引起的应力作用，该断层控制着含高磁性成分的岩石。作者得出的结论是，地震磁效应被认为是地震群和大地震变量的依赖因素。群体性地震和强地震中的每一种都有特定的地震磁效应方式。这可以用作预测亚喀巴海湾分段断层带强烈地震的短期预测的有力工具。鉴于地震和亚喀巴湾沿断层的缝隙控制着含有高磁性成分的岩石所产生的应力，可以解释群和强地震之间Sq方式的差异。作者得出的结论是，地震磁效应被认为是地震群和大地震变量的依赖因素。群体性地震和强地震中的每一种都有特定的地震磁效应方式。这可以用作预测亚喀巴海湾分段断层带强烈地震的短期预测的有力工具。鉴于地震和亚喀巴湾沿断层的缝隙控制着含有高磁性成分的岩石所产生的应力，可以解释群和强地震之间Sq方式的差异。作者得出的结论是，地震磁效应被认为是地震群和大地震变量的依赖因素。群体性地震和强地震中的每一种都有特定的地震磁效应方式。这可以用作预测亚喀巴海湾分段断层带强烈地震的短期预测的有力工具。作者得出的结论是，地震磁效应被认为是地震群和大地震变量的依赖因素。群体性地震和强地震中的每一种都有特定的地震磁效应方式。这可以用作预测亚喀巴海湾分段断裂沿线强烈地震的短期预测的有力工具。作者得出的结论是，地震磁效应被认为是地震群和大地震变量的依赖因素。群体性地震和强地震中的每一种都有特定的地震磁效应方式。这可以用作预测亚喀巴海湾分段断层带强烈地震的短期预测的有力工具。