TIL: Santiaguito Erupts Almost Every Hour

TIL: Santiaguito Erupts Almost Every Hour

There is a volcano that has been erupting every hour for 94 years. It just goes to show that even though we can't see it, there is certainly a lot of activity going on just under our feet! Join volcanologist and National Geographic Explorer Stephanie Grocke to learn about just what exactly is going on in Earth's asthenosphere.


5 - 12+


Earth Science, Geology

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Web Producer
Sarah Appleton, National Geographic Society, National Geographic Society
Last Updated

October 19, 2023

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