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Akimichi TAKAGI
Meteorological Research Institute
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Nobuaki SHIGENO
Kakioka Magnetic Observatory
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Tetsuya YAMAMOTO
Meteorological Research Institute
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Tsuyoshi OOWADA
Kakioka Magnetic Observatory
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Keiichi FUKUI
Meteorological Research Institute
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Kenji FUJIWARA
Meteorological Research Institute
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Takayuki SAKAI
Meteorological Research Institute
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Hiroshi HASEGAWA
Kakioka Magnetic Observatory
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Nobuaki ITO
Kakioka Magnetic Observatory
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Tomoaki TAKIZAWA
Volcanic Observations and Information Center, JMA