January 5, 2024 | Sammy Tran

The Huascarán Avalanche

The Huascarán Avalanche of 1970

Major avalanche snowMaVeRa, Adobe Stock

On May 31, 1970, a devastating natural disaster struck the Ancash region of Peru, marking one of the deadliest avalanches in recorded history.

The catastrophic event centered around Mount Huascarán, Peru's highest peak.

Not only did it reshape the landscape, but also the lives of thousands of people.

Understanding Avalanches: Nature's Fierce Downhill Battle

Mount Everest factsWikipedia

An avalanche is a rapid flow of snow down a steep slope, often triggered by a combination of factors like heavy snowfall, wind, temperature changes, and instabilities in packed snow.

Avalanches can vary in size and speed, with some reaching speeds of over 80 kilometers per hour, carrying huge amounts of snow, ice, rocks, and debris of all sizes.

They pose significant risks in mountainous regions, threatening both life and land.

The Huascarán Avalanche: The Trigger


Location: Ancash Region, Peru

The 1970 Huascarán avalanche was triggered by a massive earthquake, measuring 7.9 on the Richter scale, which shook the entire northern region of Peru.

The Huascarán Avalanche: The Glacier


The avalanche started atop a towering cliff situated between 5,400 and 6,500 meters above sea level in the Peruvian Andes.

This cliff included a peak of broken granite rock, topped with a glacier approximately 30 meters thick.

The earthquake weakened a large section of the north peak's ice cap, resulting in an avalanche that buried the towns of Yungay and Ranrahirca under a rush of ice, mud, and debris.

The Scale of Destruction

Avalanche Destruction in PeruWikipedia

The avalanche was one of the largest in recorded history, with an estimated 80 million cubic meters of ice, mud, and debris engulfing the towns in its path.

The avalanche reportedly rushed down at a catastrophic speed of around 270 miles per hour, which amplified its destructive power. This left residents very little time to seek safety.

The Aftermath: Loss of Life

Yungay Viejo aftermath of avalancheWikipedia

The total loss of life from the disaster is estimated to be around 20,000-30,000 people, making it one of the deadliest avalanches ever.

The towns of Yungay and Ranrahirca were virtually wiped off the map, with only a few structures remaining.

The tragedy left thousands of people homeless and a dire need for international aid and reconstruction efforts.

The Aftermath: Survivors

Child in hospital in PeruWikipedia

In the town of Yungay, only around 400 people survived, including 300 children who were at a circus in the local stadium when the disaster struck. Reportedly, a clown guided them to higher ground, just barely escaping the mudflow.

92 people found refuge by quickly climbing an artificial hill in the town's cemetery, which allowed them to survive.

The Aftermath: Memorials

Statue of ChristWikipedia

The only structures left standing in the town after the avalanche were the cemetery hill and "a statue of Jesus Christ with outstretched arms, towering over the debris." This statue still stands today as a touching memorial to those who lost their lives.

A notable image that became symbolic of the disaster was of four palm trees, which once graced Yungay's main plaza. They were partially engulfed by the mudflow yet remained upright, symbolizing resilience amid devastation.

The Aftermath: Recovery

Survivors of the earthquake in peruWikipedia

Immediate excavation efforts to dig for bodies or search for artifacts at the site were strictly forbidden for civilians due to the danger involved.

In memory of the tragedy, a memorial replicating the the original cathedral, along with a stone altar, and an expansive memorial garden featuring an obelisk, have been constructed.

Survivors have also placed headstones to mark the locations of their former homes.

The Aftermath: Relocation

Cathedral in Yungay PeruWikipedia

After the avalanche, the town of Yungay, Peru, was declared a national cemetery ("Campo Santo") by the Peruvian government.

The scale of the disaster was so great that the town was left alone to stand as nothing more than a memorial. The town was never rebuilt or reinhabited.

Instead, survivors settled in a new town, often referred to as "New Yungay," which was constructed a safe distance away from the site of the disaster.

Historical Significance

Natural Disasters FactsWikimedia Commons

This deadly avalanche is not only significant for its scale, but also for the awareness it has since raised about the risks of living in high-risk avalanche zones.

The disaster prompted both national and international discussions, influencing new policies and practices.

World-Record Avalanches: Other Tragic Incidents

Mount Everest factsPixabay

The Winter of Terror (1950-1951) – Alps, Europe: A series of avalanches in the Alps during the winter of 1950-1951 claimed around 265 lives.

Plurs (1618) – Graubünden, Switzerland: The small village of Plurs was destroyed by an avalanche, resulting in approximately 2,500 lives lost.

Wellington (1910) – Washington, United States: An avalanche struck two trains in Wellington, Washington, claiming 96 lives.

Montroc (1999) – French Alps, France: The Montroc avalanche claimed 12 lives when it hit the small village in the Chamonix valley.

Kabul (2010) – Salang Pass, Afghanistan: A series of avalanches in the Salang Pass of Afghanistan resulted in 170 lives lost.

Final Thoughts

Gut Feeling Turned Out to Be True FactsShutterstock

The Huascarán avalanche serves as a reminder of the destructive power of nature and the importance of understanding and respecting the environment we inhabit.


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