Why does the angle of subduction influence seismic hazard assessment inland?

Answer

A very shallow angle keeps the plate interface close to the surface for a greater horizontal distance inland

When a plate subducts at a shallow angle, the friction interface between the descending slab and the overriding crust remains near the surface over a larger horizontal distance, potentially exposing inland populated areas to powerful, deeper tremors.

Why does the angle of subduction influence seismic hazard assessment inland?
GeologyEarthsurfaceTectonicplate