Overview

• The avalanche, occurring 60,000 years ago, traveled 2,000 km across the Atlantic seafloor.
• It started as a small landslide but expanded dramatically, eroding a 400 km canyon.
• Researchers mapped the entire event, revealing it moved at speeds of 15 m/s.
• The study highlights the geohazard potential for critical seafloor infrastructure like internet cables.
• Findings challenge previous assumptions about the origins and growth of submarine avalanches.