Investigation of ULF magnetic anomaly during Izu earthquake swarm and Miyakejima volcano eruption at summer 2000, Japan

被引：2
|
作者：
Kotsarenko, A [1 ]
Molchanov, O [1 ]
Hayakawa, M [1 ]
Koshevaya, S [1 ]
Grimalsky, V [1 ]
Enriquez, RP [1 ]
Cruz-Abeyro, JAL [1 ]
Dávila-Madrid, FRZ [1 ]
机构：
[1] Univ Nacl Autonoma Mexico, Ctr Geociencias & Juriquilla, Ctr Queretaro, Mexico City 76001, DF, Mexico
来源：
2003 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY (EMC), VOLS 1 AND 2, SYMPOSIUM RECORD | 2003年
关键词：
geomagnetic field; ULF EM emission; pres-seismic and co-seismic signals;
D O I：
10.1109/ICSMC2.2003.1428197
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Results of the ULF electromagnetic emission during earthquake (EQ) swarm and Izu-Miyake volcano eruption at summer period of 2000 are presented and analyzed. Analysis of the obtained data has been performed in 3 main directions: traditional statistical analysis i.e. analysis of time dynamics of spectral density, polarization ratios and their derivatives, Principal Component Analysis and Fractal Analysis. Statistical characteristics were studied at different frequency sub-bands in a frequency range 10(-3) - 0.3 Hz. The mentioned methods of data processing are described and obtained results are illustrated and discussed. Some peculiarities of obtained results such as rise of the second principal component and rise of fractal index can be interpreted as a possible short-time precursors.
引用
收藏
页码：78 / 81
页数：4
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