What type of land form is created at the plate Boundary in the US Pacific North West

To be frank, I don't think your question is specific enough, but I would say that the answer would be the Rocky mountains, or just mountains. those are the only major kinds of landforms I can think of

The cascading subduction zone is the area where volcanoes, earthquakes, tsunamis occur. Majorly, land form of earthquake prevails in this region.

Explanation:

The subduction zone in the Pacific North West region. The occurence of the earthquakes is due to the deformities under the ocean plates. The rate of movement of these tectonic plates created a hazard for the earthquakes where the Pacific plate is moving 3-4 inches per year. The plate motions are straining the Lithosphere leading to volcanoes.