*Akira Yamazaki1, Hideki Iino1, Shin Akira1, Jun Shimokawa1 (1.Kakioka Magnetic Observatory)
convener:Yuta Maeda(Nagoya University), Takahiro Miwa(National research institute for earth science and disaster prevention), Takeshi Nishimura(Department of Geophysics, Graduate School of Science, Tohoku University)