Imagine owning the house over the road where the lava is heading right now, watching the disaster in slow motion. I guess the lava flow could stop right in front of it?
Iceland has socialised National Catastrophe Insurance. The premiums are very low but if your house is lava'd or avalanched you get a reasonable payout.
Of course it's better if that doesn't happen, but if it does there's solid support for the victims.