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首页> 外文期刊>Pure and Applied Geophysics >Multi-precursory Analysis of Phalla Earthquake (July 2015; Mw 5.1) Near Islamabad, Pakistan
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Multi-precursory Analysis of Phalla Earthquake (July 2015; Mw 5.1) Near Islamabad, Pakistan

机译:Phalla地震的多前兆分析(2015年7月; MW 5.1)在伊斯兰堡,巴基斯坦附近

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摘要

The recent scientific progress in understanding the hierarchical nature of the lithosphere and its dynamics based on systematic earthquake monitoring helps in designing an improved earthquake forecasting strategy. This study presents a detailed multi-precursory analysis of a shallow, moderate Phalla earthquake (July 24, 2015; Mw 5.1; Depth=10km) near Islamabad, Pakistan, 24km away from the monitoring site within the context of earthquake forecasting. The instrumental setup (soil radon monitor and space-ground-based ionosonde) for precursory monitoring of earthquake activity is installed at the foothills of Margalla along the Main Boundary Thrust. For identification of abnormal behavior of ionospheric parameters and soil radon flux, a statistical criterion consistent with other studies is used. Our analyses reveal the effect of pre- and co-seismic changes in the form of anomalous behavior of local ionospheric perturbations (2-15days prior), soil radon flux (3days prior), and seismic quiescence related to Phalla earthquake. The solar/geomagnetic conditions and meteorological parameters remained normal during the anomalous periods. Moreover, multi-precursory approach adopted in this study for earthquake prediction/forecasting can serve as a potential indicator of seismic activity.
机译:基于系统地震监测的基于系统地震监测的岩石圈分层性质及其动态的最新科学进展有助于设计改进地震预测策略。本研究提出了一个详细的浅,适度的Phalla地震(2015年7月24日; MW 5.1; Deposition = 10km),在伊斯兰堡,巴基斯坦,24km的地震预测范围内,24km距离监测网站仅24km。用于地震活动的仪器设置(土壤氡监测和空间基础IONOSONDE)安装在Margalla的主要边界推力的马耳他山脚下。为了识别电离层参数和土壤氡通量的异常行为,使用与其他研究一致的统计标准。我们的分析揭示了局部电离层扰动(2-15天之前),土氡通量(3天之前)的异常行为前和共震变化的效果,以及与藻类地震有关的地震静态。在异常时期,太阳能/地磁条件和气象参数保持正常。此外,该研究采用的地震预测/预测中采用的多前兆方法可以作为地震活动的潜在指标。

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