[Clive]

Pyroclastic flow is more dangerous and affects more territory than the lava flows that you see in night pictures from Hawaii.

Mt Pinatubo was a pyroclastic eruption as was Mt St Helens.

[Eye of Unk]

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.