Deadliest Landslides in the World

01 Aug,2024

Credit: Pixabay

Date: December 16, 1920 Impact: Triggered by a magnitude 8.5 earthquake, this landslide buried several villages in the Haiyuan County of Ningxia Province. It is estimated that around 100,000 people died due to the combined effects of the earthquake and the resulting landslides.

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1920 Haiyuan Landslide, China

Date: May 18, 1980 Impact: An eruption caused the largest landslide in recorded history, with a debris avalanche that traveled at speeds up to 150 mph. The event destroyed forests, homes, and infrastructure, resulting in 57 deaths.

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1980 Mount St. Helens Landslide, USA

Date: May 31, 1970 Impact: Triggered by a 7.9 magnitude earthquake, this landslide involved a massive ice and rock avalanche from Mount HuascarĂ¡n, burying the towns of Yungay and Ranrahirca and killing an estimated 20,000 people.

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1970 HuascarĂ¡n Landslide, Peru

Date: June 16-17, 2013 Impact: Triggered by heavy rainfall and glacial melting, this landslide and associated floods caused massive destruction in the Kedarnath region of Uttarakhand, leading to the deaths of more than 5,700 people.

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2013 Kedarnath Landslide, India

Date: December 1999 Impact: Torrential rains caused a series of landslides and floods in the Vargas State, killing an estimated 10,000 to 30,000 people and causing widespread devastation.

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1999 Vargas Tragedy, Venezuela

Date: November 13, 1985 Impact: The eruption of the Nevado del Ruiz volcano melted ice and snow, triggering lahars (volcanic mudflows) that buried the town of Armero, killing approximately 23,000 people.

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1985 Armero Tragedy, Colombia

Date: February 17, 2006 Impact: A massive landslide in the village of Guinsaugon, Southern Leyte, buried the entire village, killing around 1,100 people.

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2006 Leyte Landslide, Philippines

Date: March 22, 2014 Impact: A massive landslide near Oso, Washington, engulfed a rural neighborhood, killing 43 people and destroying numerous homes.

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2014 Oso Landslide, USA

Date: September 6, 2018 Impact: Triggered by a 6.6 magnitude earthquake, multiple landslides occurred in Atsuma, Hokkaido, causing significant destruction and leading to the deaths of 41 people.

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2018 Hokkaido Landslide, Japan

Date: April 10, 2013 Impact: One of the largest non-volcanic landslides in North American history occurred in the Bingham Canyon Mine in Utah. Although there were no fatalities, the slide involved 65-70 million cubic meters of debris, causing substantial economic damage.

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2013 Bingham Canyon Mine Landslide, USA