I've gone to Montserrat twice for TV shows to do stories on the volcano..interview those who escaped and experts etc. The experts at the MVO, Montserrat Volcano Observatory, have told me they expect the Soufrierre Hills volcano to stay active for about twenty more years but they are pretty confident there will not a a massive eruption that would affect the area outside the "exclusion zone" and cause a big tsunami..all that said..Montserrat is an amazing island to visit and observe a live volcano close up..