Question

What is around edges of the Pacific Ocean?

Answer 1

i think it is the "ring of fire". this is the edge of a tectonic plate where there is a lot of volcanoes.

Answer 2

Anonymous is right -- the Pacific Ocean is surrounded by tectonic plates and is often called the "Ring of Fire." Not only are there a lot of volcanoes, but also earthquakes. Check this site for more information.

http://en.wikipedia.org/wiki/Pacific_Ring_of_Fire