The last couple of eruptions I have seen, Mt. Spurr and Mt. Augustine basically melted all the snow and ice and sent ash up in the air, the caldera did not collapse or blow out like Mt St Helens, not to say it can’t happen, but hoping it won’t because any type of massive eruption laterally would destroy most of anything in the Cook Inlet including Anchorage.
The volcano is pretty far from Anchorage. People forget the scale of Alaska.
Other than ash clouds and airplanes this isn’t really much of a threat to human life at all.