Earth-shaking waves tracked back to Greenland mega-tsunamis

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This is a Quantitative Study study.

Isabelle Dumé

doi:10.1088/2058-7058/38/09/07

September 1, 2025Physics World

Earth-shaking waves tracked back to Greenland mega-tsunamis

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Key Points

The mysterious signal that shook the Earth every 90 seconds was confirmed to be caused by standing waves.
These standing waves, or seiches, were formed after landslides triggered vast tsunamis in a narrow waterway off Greenland's coast.
Engineers at the University of Oxford conducted this analysis to understand the geological implications of the observed signals.
This research highlights the potential for significant geological activity in coastal regions, emphasizing the need for monitoring.

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Implication

Engineers identify that tremors tracked to Greenland are due to standing waves from landslide tsunamis, suggesting significant geological activity.

Abstract

Engineers at the University of Oxford, UK, have confirmed that a mysterious signal in 2023 that caused the Earth to shake every 90 seconds was caused by standing waves, or seiches, that formed after landslides triggered huge tsunamis in a narrow waterway off the coast of Greenland.

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Isabelle Dumé (2025) studied this question.

synapsesocial.com/papers/68d7be5eeebfec0fc52374ed https://doi.org/10.1088/2058-7058/38/09/07

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Earth-shaking waves tracked back to Greenland mega-tsunamis

Key Points

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Implication

Abstract

Discussion

Cite This Study

Earth-shaking waves tracked back to Greenland mega-tsunamis

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

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