Anonymous asked in Science & MathematicsEarth Sciences & Geology · 2 months ago

Is it true that the entire Yellowstone National Park is above a massive underground volcano that can erupt at any moment?  ?

If it is true, then the American government should not allow people  to go in or around the Yellowstone National Park because it is extremely dangerous! 

9 Answers

  • Bill-M
    Lv 7
    1 month ago

    Not Above but IN.   The Park is INSIDE the Caldera of a Super Giant Volcano.

  • Diana
    Lv 7
    1 month ago

    It has the potential to erupt and cause problems worldwide.  The population that lives closest to such an eruption would be decimated.  

  • Anonymous
    1 month ago

    Yes it is. It is also estimated that if the volcano erupts, it will destroy most of the USA as we know it. Therefore it isn't any safer even if you stay away from the park.. 

  • 1 month ago

    If that ever "blows", it will take out a large chunk of the United State. Keeping a few tourists out of the area wouldn't make all that much difference.

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  • Mike
    Lv 7
    2 months ago

    Yes, that isn't news.  Scientists have been studying it for decades, and are confident they will have at least a few years warning before it blows.

  • 2 months ago

    It is true that there is a massive zone of magma that underlies a large area of the park, but it is not really true that it can erupt at any moment.  Well, it could, in the same way that an asteroid could hit the city where you live within the next five minutes, but it really is not possible in any sensible way.    It is not impossible, but there is no indication that the event is pending, which makes it very unlikely.  You are much more likely to be struck by lightening.

  • 2 months ago

    If the Yellowstone caldera ever erupts, there will be warnings for many decades ... even 100's of years before it happens.  There will be tiny earthquakes, swellings of the ground, and steam jets.

    But it is very (VERY!) unlikely that it will ever erupt, any time in the next many thousand years. The last big eruption was 630,000 years ago, and a small eruption about 174,00 years ago. It has cooled down a bit since then.

  • Ron
    Lv 7
    2 months ago

    Yes there is a hot spot beneath Yellowstone. There have been many huge eruptions over that hotspot as North American lithosphere moves westward over it.  Several at Yellowstone itself. 

    Yellowstone is perhaps the best monitored caldera on Earth.  If an eruption is approaching, there are several signs in the weeks or months leading up to it. If there is significant activity in ground deformation, quakes (especially above 5.0), release of magmatic gases, etc, then everyone will know.  Then the area will likely be evacuated.

    Even then, the vast majority of eruptions are small and localized.  The only truly unexpected and catastrophic eruption I see is if a very large earthquake causes rapid decompression of an overpressurized magma body.  Large quakes at Aleutian and Juan de Fuca subduction could trigger fault motion in Yellowstone.

  • It's "overdue" for an eruption, but the window for that is really huge.  It could erupt today, it could erupt in a month, it could erupt in another 100,000 years.  Human time and Geologic time are on such 2 vastly different scales, it's not even worth a comparison.  So enjoy Yellowstone while you can.

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