An ice avalanche that started high in the Himalayas tumbled thousands of feet, releasing vast amounts of energy that pulverized the ice into a significant volume of flood water.
An aerial view on Thursday of buildings partly submerged in muddy water along a riverside after a flash flood at Trishuli Bazaar in the Nuwakot district of Nepal.
An avalanche may have caused an unusual flash flood without heavy rainfall, with hundreds of people unaccounted for in the path of destruction. Here’s what to know.