JpGU-AGU Joint Meeting 2017

Presentation information

[JJ] Oral

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS12] [JJ] Electromagnetic phenomena associated with seismic and volcanic activities

Thu. May 25, 2017 1:45 PM - 3:15 PM 103 (International Conference Hall 1F)

convener:Tetsuya Kodama(Research Unit I, Research and Development Directorate, Japan Space Exploration Agency), Yasuhide Hobara(Graduate School of Information and Engineering Department of Communication Engineering and Informatics, The University of Electro-Communications), Toshiyasu Nagao(Institute of Oceanic Research and development, Tokai University), Chairperson:Toshiyasu Nagao(Institute of Oceanic Research and development, Tokai University), Chairperson:Tetsuya Kodama(Research Unit I, Research and Development Directorate, Japan Space Exploration Agency)

1:45 PM - 2:00 PM

[MIS12-01] Correlation between deep-sea fish sighting and earthquakes around Japan

*Yoshiaki Orihara1, Masashi Kamogawa1, Yoichi Noda2, Toshiyasu Nagao3 (1.Department of Physics, Tokyo Gakugei University, 2.Tierra Tecnica Ltd., 3.Inst. of Oceanic Res. & Develop., Tokai Univ.)

Keywords: deep-sea fish, earthquake, geomagnetic disturbance

One often believes that deep-sea fish washing-up on shore is one of unusual animal behavior before earthquakes (EQs) in Japan. Suehiro (1968) reported that oarfish (ryugu-no-tsukai) was caught in the shallows of Niijima a few days before 1957 Izu-Niijima-Kinkai EQ (M6.3). They substantially assumed that deep-sea fish floated on the shallows was regarded as an EQ precursor, because they are seldom events. On the other hand, some people have claimed that they are not the EQ precursor. In this presentation, we will discuss correlation between deep-sea fish washing-up on shore and earthquake occurrences around Japan or geomagnetic disturbances.