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www.nat-hazards-earth-syst-sci.net/8/1237/2008/
doi:10.5194/nhess-8-1237-2008
© Author(s) 2008. This work is distributed
under the Creative Commons Attribution 3.0 License.
About possibility to locate an EQ epicenter using parameters of ELF/ULF preseismic emission
1Institute of Physics of the Earth Russian Academy of Sciences, 10, Bolshaya Gruzinskaya, 123995 Moscow D-242, Russia
2Department of Electronics Engineering, The University of Electro-Communication, 1-5-1, Chofugaoka, Chofu-shi, Tokyo, 182, Japan
3Institute of Geophysical Survey, Russian Academy of Sciences, Far-East Branch, Petropavlovsk-Kamchatski, Kamchatka, Russia
4Institute of Volcanology, Petropavlovsk-Kamchatski, Kamchatka, Russia
Abstract. A relation between parameters of preseismic ULF/ELF emissions and EQ is studied. The magnetic data measured at Karymshino station (Kamchatka, Russia) along with data on local seismic activity during eight years of observations (2001–2008) are taken for the analysis. Source azimuth is detected in different techniques, based on the analysis of the total field and its polarized pulsed component. The latter technique shows a better accuracy in the source azimuth detection. The errors of the method are associated with existence of non-seismic sources and with use of one-point observation. The second error can be eliminated by development of multi-point observations.
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Citation: Schekotov, A. Y., Molchanov, O. A., Hayakawa, M., Fedorov, E. N., Chebrov, V. N., Sinitsin, V. I., Gordeev, E. E., Andreevsky, S. E., Belyaev, G. G., Yagova, N. V., Gladishev, V. A., and Baransky, L. N.: About possibility to locate an EQ epicenter using parameters of ELF/ULF preseismic emission, Nat. Hazards Earth Syst. Sci., 8, 1237-1242, doi:10.5194/nhess-8-1237-2008, 2008. Bibtex EndNote Reference Manager XML
