Japan’s 2011 megaquake sent a seismic wave nearly 2,900 km to Earth’s core, which returned 13 minutes later and shifted the entire country eastward |
A seismic wave generated by Japan’s devastating 2011 magnitude 9.0 Tohoku-Oki earthquake travelled nearly 2,900 kilometres to the boundary of Earth’s core, reflected back about 13 minutes later and shifted…
