Everyone loves Yellowstone, don’t they? For a volcano that might not have erupted for 10,000 years, it gets a disproportionate amount of media attention. Much of the hype is just because the media (news and entertainment alike) has made Yellowstone seem like something that is bound to erupt in our lifetimes and destroy all civilization. Yet today, there are really no signs that the Yellowstone caldera is heading towards a new eruption anytime in the near future — and that’s geologic “near future”, so decades to centuries … or likely even longer.
So, Yellowstone isn’t heading towards an imminent new blast. However, what would we expect to see if Yellowstone were ramping up towards a new eruption? Much of it would be what we might expect from any volcano that is preparing for a new eruption.