An earthquake struck off the northern California coast on Tuesday ... of the long-term seismic risks posed by the Cascadia Subduction Zone, a less-publicized but potentially catastrophic fault ...

(KOIN) – A new study mapping the Cascadia Subduction Zone is giving ... To map the 700-mile zone, stretching from Northern ...

The Cascadia subduction zone, where the oceanic Juan de Fuca plate descends beneath the overlying North American plate, extends 1100 km from northern California to northern Vancouver Island.

A subduction zone is created where two plates converge, with one sinking into the mantle. Dynamics along the plate interface create earthquakes, magma generated above the sinking slab leads to ...