Huascarán Avalanche, 1962 On January 10, 1962, the deadliest recorded avalanche occurred on the slopes of Mount Huascaran in Peru, killing 4,000. A glacier the size of two skyscrapers and weighing 6 tons broke and came barreling down the mountain, burying two towns in 40 feet of debris and ice. Covering 9-1/2 miles in seven minutes, few people had enough time to reach higher ground.
Tangshan Earthquake, 1976 OnJuly 28, 1976, a 7.5 magnitude earthquake struck Tangshan, a Chinese city about 68 miles east of Beijing. Many of the deaths, which numbered at least 242,000 people, was a result of unreinforced masonry homes collapsing while people were sleeping, not allowing for enough time to seek cover. While the earthquake only lasted 14-16 seconds, it was severe, injuring at least 700,000 people, not including casualties.