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The 1970 Huascarán Debris Avalanche occurred on May 31 1970, when a debris avalanche and mudflow triggered by the Ancash earthquake destroyed the Peruvian town of Yungay and ten nearby villages, leaving up to 30,000 people dead. [1]
The 1970 Ancash earthquake (also known as the Great Peruvian earthquake) occurred on 31 May off the coast of Peru in the Pacific Ocean at 15:23:29 local time.Combined with a resultant landslide, it is the most catastrophic natural disaster in the history of Peru.
The remnants of Yungay's town church after the landslide Main articles: 1970 Ancash earthquake and 1970 Huascarán debris avalanche In 1962, two American scientists, David Bernays and Charles Sawyer, had reported seeing a massive vertical slab of rock being undermined by a glacier on mount Huascarán Norte , which threatened to fall and cause ...
Yungay is located in the Callejón de Huaylas on Río Santa at an elevation of approximately 2,500 meters, 450 km north of Lima, the country's capital.East of the small town are the mountain ridges of snow-covered Cordillera Blanca, with Huascarán, Peru's highest mountain, no more than 15 km east of Yungay.
31 May 1970 Yungay, Peru 1970 Nevado Huascarán debris avalanche 50–100 MCM >22,000 Triggered by the 1970 Ancash earthquake, the mass travelled 14.5 kilometres (9 mi) at an average velocity of about 300 km/h (186 mph) and buried Yungay [77] [101] 18 Mar 1971 Chungar, Peru
The 1962 Ranrahirca Landslide was deadly landslide that affected the Ranrahirca District, alongside the river Santa, near Huascarán, the highest mountain in Peru. It was hit by massive avalanches of snow, rocks and mud, originating on the slopes of Huascarán and triggered by earthquakes on 10 January 1962 and on 31 May 1970.
Heavy rains caused the Alcamayo river to swell, flooding the streets and train tracks in Machu Picchu, the city that connects tourists to its famous ruins.One person has been reported missing so ...
Photograph taken after the 1970 avalanche showing the buried towns of Yungay and Ranrahirca Main article: 1970 Huascarán debris avalanche On 31 May 1970, the Ancash earthquake caused a substantial part of the north side of the mountain to collapse in an avalanche with an estimated 80 million cubic metres (2.8 billion cubic feet) of ice, mud ...