By: HISTORY.com Editors
Avalanche kills thousands in Peru
On January 10, 1962, an avalanche on the slopes of an extinct volcano kills more than 4,000 people in Peru. Nine towns and seven smaller villages were destroyed.
Mount Huascaran rises 22,000 feet above sea level in the Andes Mountains. Beneath it laid many small Peruvian communities, the inhabitants of which farmed in the Rio Santa Valley. On the evening of January 10, as most of the region’s people gathered in their homes for dinner, the edge of a giant glacier suddenly broke apart and thundered down the mountain. The block of ice was the size of two skyscrapers and weighed approximately 6 million tons, and it made a loud noise as it fell, which was heard in the towns below.
As avalanches were not unusual in the area, it was common knowledge that there was usually a 20 to 30 minute gap between the sound of the ice cracking off and an avalanche, which gave people time to seek higher ground. However, this time, the avalanche traveled nine-and-a-half miles in only seven minutes, wiping away several communities. The towns of Ranrahirca and Huarascucho were buried under 40 feet of ice, mud, trees, boulders and other debris. Only a handful of people in each town survived. The avalanche finally ended at the Santa River, where it stopped the water flow, causing flooding in nearby areas.
Overall, approximately 4,000 people lost their lives in the avalanche. Some bodies were carried all the way to the Pacific Ocean near Chimbote, 100 miles away. Others were buried under so much debris that their bodies were never recovered. An additional 10,000 farm animals were killed and millions of dollars in crops were destroyed.
Eight years later, an earthquake set off another terrible avalanche in the same area.
Also on This Day in History
Discover more of the major events, famous births, notable deaths and everything else history-making that happened on January 10th
Related
Natural Disasters & Environment
29 videosArchaeological discoveries have raised questions about whether Mount Vesuvius erupted in the summer or autumn of A.D. 79.
Experts suspect the massive event that flattened forests was caused by an exploding asteroid. Could it happen again?
A powerful El Niño triggered devastating droughts and famines around the world, leaving millions dead.
About the author
HISTORY.com works with a wide range of writers and editors to create accurate and informative content. All articles are regularly reviewed and updated by the HISTORY.com team. Articles with the “HISTORY.com Editors” byline have been written or edited by the HISTORY.com editors, including Amanda Onion, Christian Zapata, Cristiana Lombardo and Adrienne Donica.
Fact Check
We strive for accuracy and fairness. But if you see something that doesn't look right, click here to contact us! HISTORY reviews and updates its content regularly to ensure it is complete and accurate.
Citation Information
- Article Title
- Avalanche kills thousands in Peru
- Author
- HISTORY.com Editors
- Website Name
- History
- Date Accessed
- October 21, 2026
- Publisher
- A&E Television Networks
- Last Updated
- May 27, 2025
- Original Published Date
- November 13, 2009