A 2011 earthquake bounced a seismic wave off Earth’s core, nudging Japan east (opens in new tab)

Covered by kite.kagi.com, Space Daily

The wave's round trip to Earth's core set off a fault slip along Japan's plate boundaries, revealing a seismic hazard scientists hadn't recognized.

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Study links core-reflected seismic wave to Japan shift

A seismic wave from Japan’s 2011 magnitude-9 earthquake travelled nearly 2,900 kilometres down to Earth’s core, bounced back to the surface 13 minutes later, an...