User blog comment:Lord Loss/Discussion of the Week: Monster Hunter Frontier 7.0/@comment-4969421-20120602150159/@comment-4775842-20120602153958

I stand to debate that. Raviente movements probably disrupt the landscape not just above( with giant holes in the earth) but below as well, likely setting off the eruption by weakening barriers between the lava flow beneath the island (and I'm 95% sure it is an island), causing the volcaninc eruption.