Kammala jumla mai zuwa: A cikin 2013, Mitsui Fudosan da Kamfanin Kajima sun fara girka manyan pendulums guda shida a kan rufin ginin don magance motsin ƙasa mai tsawo. The pendulums zai rage girman ginin motsi da rabi ko fiye a lokacin da wani babban girgizar kasa, kamar
Babban girgizar kasa ta Gabashin Japan na 2011.