Na Boon Super Volcano

Kaishi

The Na Boon Super Volcano, sometimes referred to as the Na Boon Caldera, is a dormant super volcano below the Mushi Umi sea at the center of the minor continent of Na Boon's archipelago. Though dormant in the modern day, the magna below the surface keeps the sea and surrounding islands warmer than natural for such a high latitude.

The super volcano is credited with the creation of the archipelago itself during its first known eruption at the beginning of the Randagri Period. This eruption nearly caused the extinction of life on Aldern, causing an ice age event in the aftermath.