ULF emissions associated with seismic activity recorded at Kolhapur Station

被引：0
|
作者：
Sharma, A. K. [1 ]
Patil, A. V. [1 ]
Haridas, R. N. [1 ]
Bhonsle, R. V. [1 ]
机构：
[1] Shivaji Univ, Dept Phys, Space Sci Lab, Kolhapur 416004, Maharashtra, India
来源：
CURRENT SCIENCE | 2008年 / 94卷 / 08期
关键词：
earthquakes; electromagnetic emissions; polarization ratio; power spectrum analysis;
D O I：
暂无
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
In this communication, we present some observations and preliminary results associated with seismogenic ultra low frequency (ULF) emissions. We have analysed ULF data for two moderate earthquakes that occurred on 17 April and 21 May 2006, with magnitudes greater than 4. For recording ULF data using ground-based method, three induction-coil magnetometers have been installed at Shivaji University, Kolhapur, India (16.40 degrees N, 74.15 degrees E). Data have shown maximum enhancement in intensities of magnetic field for 0.1 Hz, 3 - 5 days before the earthquakes. Polarization parameter and geomagnetic pulsation in terms of Kp index have been used to conclude that the observed enhancement in magnetic field (before the earthquake) is seismogenic.
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收藏
页码：1034 / 1037
页数：4
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