Quote Originally Posted by Zach View Post
Now that the continental crust has joined, however, subduction is mostly finished and that explains why the volcanoes have not erupted for a long time. (Except I get the feeling that you're planning some sort of a volcanic cataclysm...so maybe there's enough magma left under the mountains for one final show.)

Tons of volcanoes that are inactive, dormant, or even thought to be extinct, erupt ALL THE TIME. so I think that would probably work, if that's what the OP is looking for