The end of humanity? What would happen if the Yellowstone supervolcano erupted now

A Yellowstone super-eruption would begin not with a sudden surprise, but with weeks of increasingly alarming warning signs such as migrating earthquake swarms, rapid ground uplift, changing geysers, and rising volcanic gases. In a worst-case scenario, those signals could culminate in a VEI 8 eruption that blasts ash tens of kilometers into the atmosphere, unleashes deadly pyroclastic flows, buries parts of the western United States in ash, and cripples transportation, electricity, water systems, agriculture, and communications across much of North America. The end of humanity? What would happen if the Yellowstone supervolcano erupted now.

Com Around 631,000 years ago — a geological blink of an eye — catastrophe unfolded in what is now north-western Wyoming, US. During what is thought to have been a series of immense volcanic eruptions, life within hundreds of kilometers of the blasts was shattered. Ash was dispersed across much of North America and the effects were felt worldwide.

This was a super-eruption of the massive volcanic system located in what is now the Yellowstone National Park. Despite the scale, no known human witnessed the cataclysm.