As of 2026-10-12, 1970 Huascarán debris avalanche tops the list with 6,000 deaths.
- #1 1970 Huascarán debris avalanche — 6,000 deaths
natural disaster in Peru in 1970
On 31 May 1970, a debris avalanche and mudflow triggered by the Ancash earthquake destroyed the town of Yungay, Peru and 10 nearby villages, leaving up to 30,000 people dead. It is the deadliest avalanche or glacier-related disaster in history, surpassing the death toll from the previous deadliest avalanche disaster, the avalanches of White Friday on the Italian front of World War I and the third or fourth most deadly landslide-related disaster of the 20th century, after the Haiyuan landslides... Read more on Wikipedia.
Wikidata - #2 1962 Ranrahirca landslide — 2,900 deaths
natural disaster in Peru in 1962
source Wikidata - #3 2024 Enga landslide — 2,000 deaths
24 May 2024 landslide in Papua New Guinea
On 24 May 2024, a landslide occurred in Mulitaka, Papua New Guinea. By 7 June, 12 bodies had been recovered, with thousands more buried and presumed dead, though estimates of the death toll vary greatly, with some estimating that only 160 had died. Read more on Wikipedia.
Wikidata - #4 Vajont dam disaster — 1,917 deaths
1963 landslide and flood in Vajont, Northern Italy
The Vajont Dam or Vaiont Dam is a disused hydro-electric dam in the valley of the Vajont river under Monte Toc, in the municipality of Erto e Casso, 100 kilometres (60 mi) north of Venice, Italy. It is one of the tallest dams in the world, with a height of 262 m (860 ft). Read more on Wikipedia.
Wikidata - #5 1941 Huaraz landslide — 1,800 deaths
natural disaster in Peru
source Wikidata - #6 2006 Southern Leyte mudslide — 1,126 deaths
major landslide (rockslide-debris avalanche)
On February 17, 2006, a massive rock slide-debris avalanche occurred in the Philippine province of Southern Leyte, causing widespread damage and loss of life. The deadly landslide followed a 10-day period of heavy rain and a minor earthquake. The official death toll was 1,126. Read more on Wikipedia.
Wikidata - #7 2025 Tarasin landslide — 1,000 deaths
landslide in western Sudan
On 31 August 2025, a landslide destroyed the village of Tarasin in the Marrah Mountains in Central Darfur, western Sudan, killing between 375 and 1,500 people. Read more on Wikipedia.
Wikidata - #8 1967 floods and landslides in Caraguatatuba — 436 deaths source Wikidata
- #9 1751 Nadachi landslide — 428 deaths source Wikidata
- #10 2010 Ugandan landslide — 388 deaths
The 2010 Ugandan landslide occurred in the Bududa District in eastern Uganda on 1 March 2010. The landslide was triggered by heavy rain between 12 pm and 7 pm that day. At least 100 people were believed to have been killed, and 94 bodies were found. Read more on Wikipedia.
Wikidata