電気学会論文誌A(基礎・材料・共通部門誌)
Online ISSN : 1347-5533
Print ISSN : 0385-4205
ISSN-L : 0385-4205
特集論文
The Direction Finding of ULF Emissions Observed before the 2007 Noto Hantou and the 2008 Iwate-Miyagi Nairiku Earthquakes
Jun IzutsuKenji OhtaMasashi Hayakawa
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ジャーナル フリー

2009 年 129 巻 12 号 p. 865-869

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抄録
Chubu University has established ULF/ELF electromagnetic observation network in order to study seismo-electromagnetics. We estimate the direction angle of the ULF emissions observed at three observation stations (Nakatsugawa, Shinojima and Minami Izu) before the 2007 Noto Hantou and 2008 Iwate-Miyagi Nairiku earthquakes. As a result of analysis, we found that observed ULF emissions have been propagated possibly from the direction of the epicenter of the 2007 Noto Hantou earthquake and the 2008 Iwate-Miyagi Nairiku earthquake. However, the observed ULF emissions possibly propagated from the epicentral region were not so convincing enough, and so we need more event studies.
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© 2009 by the Institute of Electrical Engineers of Japan
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