Schematic figure of the subduction zone underneath the Kanto region (left) in Japan and the spatial distribution of magnitude 2 to 6 earthquakes on the subduction zone at 60 to 70 kilometers below ...

This area, called the Cascadia Subduction Zone, hosts a megathrust fault ... they finally lurch against each other. The result: the world's greatest earthquakes, shaking both seabed and land ...

Along this fraught stretch, called the Cascadia subduction zone, two pieces of the Earth ... they used the data to construct a comprehensive map of the underwater geology in a study published ...

1. Figure 1: Map of the northern Cascadia subduction zone showing the distribution of earthquakes in the subducting Juan de Fuca plate and the locations of seismic cross-sections. Green dashed line ...