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DOI	10.1007/s11069-020-04487-7
	Does air ionization by radon cause low-frequency atmospheric electromagnetic earthquake precursors?
	Schekotov A.; Hayakawa M.; Potirakis S.M.
发表日期	2021
ISSN	0921030X
起始页码	701
结束页码	714
卷号	106 期号:1
英文摘要	The aim of this work is to study the relationship between the pre-earthquake emissions of radon and ULF/ELF (1–30 Hz) atmospheric electromagnetic radiation. The problem is considered on the example of the 2011 Tohoku earthquake. Radon, ionizing air, creates ions—centers of condensation of water vapor. As a result of condensation, heat is generated. It results in growth of air temperature and decrease in its humidity. This phenomenon serves as an indicator of air ionization. We used data from 20 Japan Meteorological Agency (JMA) weather stations located on Honshu Island to estimate any changes in temperature and humidity over ± 20 days from the date of the main shock. At the same time, we monitored the intensity and location of the source of ULF/ELF radiation using three induction magnetometers belonging to Chubu University. We compared the times and locations of observed signs of ionization and electromagnetic radiation to find out their relationship. It turned out that they are independent, since their dates and localizations do not match. In addition, we found intense ionization of the air after March 11 over a large area of Honshu Island, caused by radiative radiation from the nuclear disaster at the Fukushima Daiichi nuclear power plant. However, this phenomenon did not cause low-frequency atmospheric electromagnetic radiation either. These suggest that there is no direct relationship between air ionization and ULF/ELF radiation. This is true at least for this case, given the island nature of the land and oceanic EQs. © 2021, The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature.
关键词	Air ionization Earthquake (EQ) preparation process EQ prediction Fukushima Daiichi nuclear disaster Gas emanation Lithosphere–atmosphere–ionosphere coupling Radioactive plume Radon Seismo-electromagnetic phenomena
英文关键词	atmospheric electricity; earthquake precursor; electromagnetic radiation; ionization; ionosphere; land-atmosphere interaction; lithospheric structure; nuclear accident; prediction; radon; seismicity; Honshu; Japan; Indicator indicator
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206549
作者单位	The Schmidt Institute of Physics of the Earth, Russian Academy of Sciences (IPE RAS), 10-1 B. Gruzinskaya, Moscow, 123242, Russian Federation; Hayakawa Institute of Seismo Electromagnetics, Co. Ltd. (Hi-SEM), UEC (University of Electro-Communications) Alliance Center #521, 1-1-1 Kojima-cho, Chofu Tokyo, 182-0026, Japan; UEC, Advanced Wireless and Communications Research Center (AWCC), 1-5-1 Chofugaoka, Chofu Tokyo, 182-8585, Japan; Department of Electrical and Electronics Engineering, University of West Attica, Egaleo, Athens, 12244, Greece
推荐引用方式 GB/T 7714	Schekotov A.,Hayakawa M.,Potirakis S.M.. Does air ionization by radon cause low-frequency atmospheric electromagnetic earthquake precursors?[J],2021,106(1).
APA	Schekotov A.,Hayakawa M.,&Potirakis S.M..(2021).Does air ionization by radon cause low-frequency atmospheric electromagnetic earthquake precursors?.Natural Hazards,106(1).
MLA	Schekotov A.,et al."Does air ionization by radon cause low-frequency atmospheric electromagnetic earthquake precursors?".Natural Hazards 106.1(2021).