Scientists warn mega-tsunamis could wipe out entire coastlines in minutes.

Imagine a wall of water taller than the Empire State Building crashing onto American shores. Scientists warn that so-called “mega-tsunamis,” waves reaching up to 1,000 feet, are not just the stuff of disaster movies—they’re a real geological possibility. According to geologist Simon Day, massive landslides or volcanic collapses could unleash waves capable of obliterating entire coastlines within minutes. While rare, these events have reshaped parts of the world in the past, and experts caution that several U.S. states remain vulnerable to this almost unimaginable force of nature.








