An earthquake in the Cascadia Subduction Zone with a magnitude greater than 8.0 could cause a sudden subsidence – the sinking of land – that, paired with rising sea levels, would enlarge ...

A part of the plate’s lower layer is peeling off and plunging into the Earth's mantle. The process—called delamination—was detected beneath the Tibetan Plateau using seismic waves and helium gas ...

His group used seismic imaging to trace the plate's motion. They detected evidence of delamination far below the Earth's surface. Delamination refers to the dense lower part of the plate sinking.

The outer coastline had tsunami waves of under three feet. The March 2011 Tohoku earthquake was the result of a subduction zone, where the Pacific plate moves under the Honshu plate. This movement ...