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One of Earth’s Deadliest Supervolcanoes Is Hiding in America-What If It Finally Blew Its Top?
aol.com • • science
Key Points:
- Yellowstone is one of about two dozen supervolcanoes worldwide, capable of ejecting at least 1,000 cubic kilometers of material in a single eruption, far surpassing typical volcanic events like Mount St. Helens in 1980.
- The Yellowstone supervolcano has erupted three times in the past 2.1 million years, with the largest event releasing 588 cubic miles of ash and lava, causing massive regional and global impacts.
- Modern monitoring by the USGS and other scientific bodies would likely provide weeks of warning before an eruption, allowing for evacuation and potentially reducing immediate casualties.
- An eruption would devastate the surrounding region with ashfall, disrupt infrastructure, and cause a global cooling period of about 1.5°C, leading to widespread crop failures, food shortages, and a prolonged humanitarian crisis.
- While humanity would survive such an eruption, indirect effects including pollution and resource scarcity could result in hundreds of millions of deaths and fundamentally alter global society.
