Admittedly I know nothing about the relationship between eruptions and our local climate but I remember someone saying that tropical eruptions could have negative impacts on our winters. For instance, there’s some thought that the Pinatubo eruption in 1991 was a factor in our crap winters of the early 90’s.
We benefit more from eruptions at higher latitudes, such as Alaska or Iceland.
Again, not saying any of this if fact. Just passing along what I read. Hopefully someone with knowledge on the subject can chime in.