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首页> 外文会议>Proceedings of international disaster and risk conference >The Analysis on the Electromagnetic Anomalies before Wenchuan Earthquake Based on Satellite and Ground Observing Data
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The Analysis on the Electromagnetic Anomalies before Wenchuan Earthquake Based on Satellite and Ground Observing Data

机译：基于卫星和地面观测数据的汶川地震电磁异常分析。

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Wenchuan M8. 0 earthquake brought large disaster to China on May 12 2008. And earthquake prediction becomes a hot topic again in the world. Due to the impossibility of entering the earth interior and complexity of earthquake preparation mechanism, earthquake prediction is still a worldwide problem. Scientists have to employ limited observing technology to summarize kinds of features shown in the process of earthquake preparation in the hope of accumulating knowledge to seismic mechanism. In recent years, many electromagnetic observing technologies have been developed including those at surface and satellite to detect the changes of underground media or ionospheric variations (Varotsos, et al., 1993; Hayakawa, et al., 1996; Molchanov, et al., 1996; Parrot, et al., 2006). The results reflects that electromagnetic signals may be an useful tool in short-term earthquake prediction because the anomalous electromagnetic signals often occurred just a few days or a few hours before strong earthquakes.
机译：汶川M8。 0地震于2008年5月12日给中国带来了巨大的灾难。地震预报再次成为世界上的热门话题。由于无法进入地球内部以及地震准备机制的复杂性，地震预报仍然是一个世界性的问题。科学家们必须运用有限的观测技术来总结地震准备过程中表现出的各种特征，以期为地震机理积累知识。近年来，已经开发了许多电磁观测技术，包括用于探测地下介质或电离层变化的电磁和地面观测技术（Varotsos等，1993； Hayakawa等，1996； Molchanov等， 1996； Parrot等，2006）。结果表明，电磁信号可能是短期地震预测中的有用工具，因为异常电磁信号通常在强地震发生前几天或几小时发生。

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