|When Yellowstone Becomes Extinct|
When it happened
This is a Fictional Event.
The Extinction of the Yellowstone Caldera happened after an eruption that was tied as it's Second Largest in History happened in the Year 2025.
The Yellowstone Caldera had erupted long enough and had erupted enough Magma to where the Magma Chamber was almost completely emptied, and a near-complete collapse of the Caldera ultimately filled the emptied chamber and thus, seemed to have stopped it from refilling, soon rendering the Yellowstone Super-Volcano as Extinct, which was seen as Unprecedented.