Greenland Mega Tsunami

SCIENCE

By Aniket Chakraborty June 12, 2025 Arrow

The faint, rhythmic signal lasted 9 days and returned a month later, baffling scientists worldwide.

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From Alaska to Australia, seismic stations detected it—but people couldn’t feel a thing.

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The source? A remote fjord in East Greenland, flanked by 3,000-foot cliffs.

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Satellite images revealed a missing chunk of mountain—something massive had hit the water.

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On Sept 16, 25 million cubic yards of rock and ice crashed into Dickson Fjord.

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This triggered a 650-foot mega tsunami, which created seiche waves—oscillating water in the fjord.

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These back-and-forth waves sent low-frequency seismic energy through Earth for days.

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NASA and France’s SWOT satellite mission helped trace subtle water elevation changes.

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A global team, machine learning, and geophysics finally decoded the eerie heartbeat of the planet.

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