The glacier, which has receded over the years, carved Lituya Bay into a unique topographic phenomenon with steep walls, a very deep submerged bottom, and a very narrow entrance to the ocean which created the opportunity for a megatsunami to occur.
The glacier's gradual withdrawal over time transformed Lituya Bay into a singular topographic wonder featuring steep slopes, an exceptionally profound underwater basin, and a remarkably constricted opening to the ocean, which in turn enabled the potential for a massive tsunami wave to develop.