Research Unveils Massive Scale of Ancient Underwater Avalanche

A giant submarine avalanche off the Moroccan coast grew over 100 times in size, posing significant risks to underwater infrastructure.

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.