Japan Geoscience Union Meeting 2019

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[J] Oral

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS22] Electromagnetic phenomena associated with seismic and volcanic activities

Wed. May 29, 2019 3:30 PM - 5:00 PM A07 (TOKYO BAY MAKUHARI HALL)

convener:Tetsuya Kodama(Research Unit I, Research and Development Directorate, Japan Space Exploration Agency), Toshiyasu Nagao(Institute of Oceanic Research and development, Tokai University), Chairperson:Tetsuya Kodama, Toshiyasu Nagao

4:00 PM - 4:15 PM

[MIS22-03] On the tsunami and electromagnetic pulses appeared abound 10min. after the 2011 Tohoku earthquake

*Yuji Enomoto1, Tsuneaki Yamabe1, Shigeki Sugiura2, Hitoshi Kondo2 (1.Shinshu Univeristy, Ueda Campus Fii, 2.Genesis Reserach Institute, Inc.)

Keywords:Seismo-electromagneic phenomena, Tsunami, Geomagnetic change

Tsunami and electromagnetic pulses have appeared about 10 min. after the 2011 Tohoku-Oki earthquake( Heki, GRL, 2011; Utada et al. EPS Lett., 2011; Tsunagawa et al. EPS Lett., 2011). The disturbance to the ionosphere is thought to have been influenced by the atmospheric gravity wave caused by the tsunami. But this model could not explain the variation of geomagnetism, observed at Esahi site. In order to explain geomagnetic variation, we present a model that positively charged mists flied up with the atmospheric gravity wave along with the atmospheric electric field as the tsunami pulse was generated.