DOI: 10.1007/s11069-020-04487-7
论文题名: Does air ionization by radon cause low-frequency atmospheric electromagnetic earthquake precursors?
作者: Schekotov A. ; Hayakawa M. ; Potirakis S.M.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 106, 期: 1 起始页码: 701
结束页码: 714
语种: 英语
中文关键词: 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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169348
Appears in Collections: 气候变化与战略
There are no files associated with this item.
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
Recommended Citation:
Schekotov A.,Hayakawa M.,Potirakis S.M.. Does air ionization by radon cause low-frequency atmospheric electromagnetic earthquake precursors?[J]. Natural Hazards,2021-01-01,106(1)