photographs taken after the 7.8-magnitude earthquake sparked an avalanche on mount everest on saturday show the campsite buried beneath snow and belongings strewn across the mountain .
eighteen people were killed in the avalanche , including three americans , and more than 60 were injured .
survivors recalled harrowing tales of being pummeled by snow and rocks as they prayed for their lives .
the massive earthquake is believed to have killed at least 4,352 people across the region .