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 ...

This area, called the Cascadia Subduction Zone, hosts a megathrust fault ... making it potentially the most dangerous section. Also in this segment, the seafloor is subducting under the ...

Mid-ocean ridge basalts (MORBs), located far from subduction zones, are typically thought to be unaffected by subduction ...