Antarctica’s Hidden Earthquake Swarm Revealed — and Its Location Is Raising Questions

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AI uncovered hundreds of deep earthquakes beneath East Antarctica, reshaping views of the continent’s tectonic stability.

The Quakes Were Hidden in Old Data

David Glacier Is the Exact Location

More Than 500 Deep Events Were Found

The Depth Makes Them Unusual

The Magnitudes Were Small

The Cause May Be Deep Bending

The Ice Sheet May Add Stress

The Location Still Raises Questions

AI Changed What Scientists Could Hear

The Discovery Could Reach Beyond Antarctica

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Antarctica is often imagined as frozen, silent, and geologically quiet, but new research has exposed a different story beneath the East Antarctic Ice Sheet. Using machine learning, scientists uncovered hundreds of previously hidden earthquakes beneath David Glacier, a major outlet glacier that stretches about 1,100 kilometres and drains roughly 4% of the East Antarctic Ice Sheet into the ocean.

The surprise is not only the number of earthquakes. It is where they are happening: deep beneath the continent, far from active plate boundaries, in a place where this kind of seismic activity was not expected. The findings were published in Science, and suggest Antarctica may be more tectonically active than earlier records showed.

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