Massive Tohoku Earthquake Sent a Seismic Wave That Shifted All of Japan Gizmodo An earthquake hit Japan so hard it made the entire country move Scientific American A Giant Seismic Wave Bounced Off Earth's Core And May Have Shifted Japan ScienceAlert A 2011 earthquake bounced a seismic wave off Earth’s core, nudging Japan east Science News Waves reflecting off Earth's core shifted Japan after 2011 earthquake New Scientist