If Yellowstone experienced another level 8 eruption on the VEI scale, what are the largest geographical implications?

I'm building a post-apocalyptic setting where the cataclysmic event is a volcanic eruption from Yellowstone that releases a blanket of ash that reaches from California to just before the Midwest. Earthquakes are also felt across the world, many demolishing major urban centers. I'm hypothesizing a volcanic winter that would last some decades, resulting in (of course) the collapse of most civilization and the extinction of much of humanity.

My question here is pretty broad, but is it viable that (parts of) humanity would survive such an event, and what would be the extent of damage to nature both in the ash-covered areas and the surrounding landscape? How long would/could it take for the winter to lapse? Could it last up to 50 years, with a resulting long epoch of cooling, of course? Would humanity be able to survive that?

posted over 9 years ago

majortopio‭

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