A thick layer of slippery clay on the ocean floor may have formed the weak spot that enabled a magnitude 9.1 quake to make such a devastating tsunami.
Hidden slippery clay on seafloor may have worsened devastating 2011 tsunami in Japan
Live Science - 17 Feb 2026 16:31
A thick layer of slippery clay on the ocean floor may have formed the weak spot that enabled a magnitude 9.1 quake to make such a devastating tsunami.
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