However, the colony was resilient. It bounced back every time, although it took between 400 and 800 years to do so. [Read the full story on the penguins affected by the volcano]
The largest eruptions in the core sample from Fildes Peninsula and Ardley Island happened about 7,000 years ago and about 5,500 to 4,500 years ago. By studying these core samples, the researchers determined that these eruptions spewed more than 3 feet (1 meter) of ash into the air.
[Read the full story on the penguins affected by the volcano]