A volcano exploded the other day on a small island in New Zealand. It killed some people but it didn't mean to. The volcanoes spew out material and that is what they do.
I feel pity for the families of the people that were killed.
The Irony is that volcanoes are one of the things that give life in this world. They are a part of the carbon cycle and help keep the cycle going by freeing co2 from rocks below, they also create land from the ocean which is needed for terrestrial life.