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＞ Mysterious Fireballs
「Trajectory of the 2010/08/07 Biwa-lake fireball determined from seismic recordings」 https://www.terrapub.co.jp/journals/EPS/pdf/2012/6401/64010027.pdf
This remarkable phenomenon had happened before the great earthquake occurred around the coast of the Pacific Ocean of Tohoku-region of Japan ( 2011/03/11 ).
