The direction finding of ULF emissions observed before the 2007 Noto Hantou and the 2008 Iwate-Miyagi Nairiku earthquakes (特集:Electromagnetic Technologies for Forecasting and Monitoring Natural Hazards)
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概要
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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.
- 2009-12-01
著者
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IZUTSU Jun
Earth Watch Safety Net Research Center, Chubu University
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OHTA Kenji
Department of Electronics Engineering, Chubu University
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HAYAKAWA Masashi
AWCC and Research Station on Seismo Electromagnetics, The University of Electro-Communications
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井筒 潤
中部大学地球ウオッチ・市民安全センター
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Izutsu Jun
Earth Watch Safety Net Research Center Chubu University
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Izutsu Jun
Earthquake Prediction Research Center Tokai University
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井筒 潤
京大理
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Ohta Kenji
Department Of Electronics Engineering Chubu University
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Izutsu Jun
Earth Watch Safety Net Res. Center Chubu Univ.
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Hayakawa Masashi
Awcc And Research Station On Seismo Electromagnetics The University Of Electro-communications
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井筒 潤
中部大学
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Hayakawa Masashi
Awcc And Res. Station On Seismo Electromagnetics The Univ. Of Electro-communications
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井筒 潤
中部大
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Ohta Kenji
Department Of Electronic Information Chubu University
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Hayakawa Masashi
Department Of Electronic Engineering And Research Station On Seismo Electromagnetics The University Of Electro-communications
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OHTA Kenji
Department of Earth and Planetary Sciences, Tokyo Institute of Technology
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