Why do you think the location surrounding the pacific ocean is known as the ring of fire

It is referred to as the Ring of Fire because the edges of it mark a circle of high volcanic and seismic activity, better known as earthquakes. 

It is referred to as the Ring of Fire because the edges of it mark a circle of high volcanic and seismic activity, better known as earthquakes. 

It's lithogenous i believe of course i looked it up.

The answer is c epicenter