关于拉奎拉地震前VLF排放的识别
In connection with identification of VLF emissions before L'Aquila earthquake
摘要：
本文在回顾性资料的基础上，对LAI系统自生地震电磁振荡的理论模型进行了检验。应用所提供的简单模型，可以定性地解释地震孕育过程中VLF电磁辐射的产生机制。值得注意的是，电磁发射光谱中频率从MHz到kHz的变化与断层形成的类雪崩不稳定模型吻合得很好。以L'Aquila地震为例，为了可靠地将地球VLF辐射与磁层同频段电磁辐射分离，提出了MHD判据和地磁活动指标。根据所考虑的三次地震，作者认为LAI系统的自生地震电磁振荡模型将使我们能以一定的精度探讨地震预测的分辨率问题。
英文摘要：
The present paper deals with an attempt to check up the theoretical model of self-generated seismo-electromagnetic oscillations of LAI system on the basis of retrospective data. Application of the offered simple model enables one to explain qualitatively the mechanism of VLF electromagnetic emission initiated in the process of an earthquake preparation. It is worth to pay attention to the fact that frequency changes from MHz to kHz in electromagnetic emission spectrum comes to a good agreement with avalanche-like unstable model of fault formation. L'Aquila earthquake taken as an example to isolate reliably the Earth VLF emission from the magnetospheric electromagnetic emission of the same frequency range, MHD criterion is offered together with geomagnetic activity indexes. On the basis of the considered three earthquakes, according to the opinion of authors the model of self-generated seismo-electromagnetic oscillations of the LAI system will enable us to approach the problem of resolution of earthquake prediction by certain accuracy.
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