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首页> 外文会议>2013 Fifth International Conference on Geo-Information Technologies for Natural Disaster Management >Short Term Analysis of Moderate Seismic Activity near Koyna Region Occurred on 29th July 2008
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Short Term Analysis of Moderate Seismic Activity near Koyna Region Occurred on 29th July 2008

机译：2008年7月29日发生在科伊纳地区附近中度地震活动的短期分析

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摘要

Study of magnetic field variations due to earthquakes have been started at Shivaji University, Kolhapur (India) using three axis ULF induction type magnetic sensors. The results of ULF electromagnetic signal observations in seismoactive regions prior to earthquakes are presented. We have considered one moderate earthquake for the present study, which occurred in Koyna region on 29th July 2008 at 19:10:53 UT (Magnitude=4.2). We have analyzed one month data before earthquake. For study of these signals we have considered the frequency range from 0.01 Hz to 10 Hz. Suitable Data analysis methods like Power Spectral Density, Polarization ratio, and Fractal Analysis are used. This analysis gives the detail information about the possibilities of precursory signals due to earthquakes near the observation site.
机译：由地震引起的磁场变化的研究已经在印度Kolhapur的Shivaji大学开始使用三轴ULF感应型磁传感器进行了研究。介绍了地震前地震活跃地区的ULF电磁信号观测结果。在本研究中，我们考虑了一场中度地震，该地震发生在2008年7月29日UT 19:10:53 UT（震级= 4.2）的科伊纳地区。我们已经分析了地震前一个月的数据。为了研究这些信号，我们考虑了0.01 Hz至10 Hz的频率范围。使用了合适的数据分析方法，例如功率谱密度，极化率和分形分析。该分析提供了有关观测地点附近地震引起的先兆信号可能性的详细信息。

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