Even though volcanoes are EXTREMELY HAZARDOUS to be near when they erupt the eruptions can still be good in some ways. the pros. Can create new land, Like it does for Hawaii. The gasses add water to the crust and troposphere, so there is more water for the water cycle. read more
The pros are that you are in a very fertile area for growing plants and vegetables, since the soil is already primed with minerals. You might even find some valuable stones. The down side is , you are living near a Volcano! Also primed with lava, heat, and combustibility. I think the cons outweigh the pros. read more