It started with a volcano — and ended with a wave the size of a skyscraper. 🌋🌊

73,000 years ago, the island of Fogo collapsed in one of the most violent landslides Earth has ever seen, launching a tsunami up to 800 meters high and flinging boulders the size of houses across the ocean. But here’s the terrifying part: this isn’t just ancient history.

New research shows even small volcanic islands could collapse without warning. Some already have — and new satellite data has uncovered hidden instability scientists completely missed before.

Volcanoes that look calm... might be ticking time bombs.

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