Ada Tsang remembers the ground shaking and then trying to zip up a tent flap before the roaring ocean of snow overtook her. When she awoke, Tsang saw bodies strewn around Mount Everest, just some of the victims claimed by the earthquake that rocked Nepal on Saturday. For the second consecutive year, fatal natural disasters struck Mount Everest, hitting one of the most important revenue sources in Asia’s second-poorest country. Since New Zealander Edmund Hillary and Nepali Tenzing Norgay reached the summit in 1953, more than 4,000 people have followed, creating a sizable industry.