Hundreds of Icequakes at Thwaites Glacier Reveal How "Doomsday" Ice Breaks

• Hundreds of glacial earthquakes, linked to iceberg activity, were detected beneath Antarctica's Thwaites Glacier.
• Over 360 icequakes were recorded between 2010 and 2023, primarily near the glacier's marine edge and Pine Island Glacier.
• These tremors are caused by tall, narrow icebergs capsizing and impacting the main ice mass, generating seismic waves.
• Thwaites Glacier, known as the "Doomsday Glacier," is critical for future sea-level rise, and these quakes offer insight into its breaking apart.
• Future research will deploy more sensors and combine seismic data with satellite observations to understand iceberg calving and ocean warming effects.

Why It Matters: Icequakes at Thwaites Glacier offer critical insights into future sea-level rise.