Ranrahirca

File:Yungay avalanche labels.jpg

The 1962 Ranrahirca Landslide was a 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. Over two thousand people from the village perished in the 1962 avalanche, along with the inhabitants of seven nearby settlements.[https://archive.org/stream/196211/1962-06#page/n165/mode/2up National Geographic June 1962] In total about 3,500 died in the disaster.Lane, F. W. The Elements Rage (David & Charles 1966), pp. 88-9 & plates 40-41 About 20,000 people died in the avalanches that resulted from the second earthquake (known as the 1970 Ancash earthquake).{{cite journal|last=U.S. Dept. of the Interior|date=October 1970|title=The Peru Earthquake: a Special Study|journal=Bulletin of the Atomic Scientists|volume=26|issue=8|pages=17–19|doi=10.1080/00963402.1970.11457853 |bibcode=1970BuAtS..26h..17. }} 400 survived from the second disaster.[http://news.bbc.co.uk/onthisday/hi/dates/stories/january/11/newsid_3306000/3306665.stm BBC on this day]