The supervolcano in Yellowstone National Park could cause an ultra-catastrophe, warns an extinction events writer. The full eruption of the volcano last happened 640,000 years ago.
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If another large, caldera-forming eruption were to occur at Yellowstone, its effects would be worldwide. Such a giant eruption would have regional effects such as falling ash and short-term (years to decades) changes to global climate.
Steamboat Geyser did not have a major eruption in September, but minor eruptions starting in late September indicate that the geyser is likely to erupt in the coming weeks. There have been six major water eruptions of the geyser so far in 2023.
If another large, caldera-forming eruption were to occur at Yellowstone, its effects would be worldwide. Such a giant eruption would have regional effects such as falling ash and short-term (years to decades) changes to global climate.