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Health & Science1d 11h ago

A team led by Sunyoung Park published a paper in Science proposing that a seismic ScS wave from the 2011 Tohoku-Oki earthquake caused a five to six millimetre eastward displacement across Japan.

Japan

Who
a team led by Sunyoung Park, an assistant professor of geophysical sciences at the University of Chicago
What
A team led by Sunyoung Park published a paper in Science proposing that a seismic ScS wave from the 2011 Tohoku-Oki earthquake caused a five to six millimetre eastward displacement across Japan.
When
Thu, 18 Jun 2026 00:00:00 GMT · 1d 11h ago
Where
Japan ·
Why
The shift was caused by an ScS wave that travelled from the earthquake’s epicentre, bounced off the outer core, returned to the surface, and triggered small additional slip on Japan’s tectonic plate boundaries.
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How this affects you

This finding suggests that the influence of the largest earthquakes may extend much further and through deeper geological pathways than previously understood, representing a previously unrecognised source of seismic hazard.

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