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Landslides and avalanches

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Nature and flora

2014 Oso mudslide

A major landslide occurred 4 miles (6.4 km) east of Oso, Washington, United States, on March 22, 2014, at 10:37 a.m. local time. A portion of an unstable hill collapsed, sending mud and debris to the south across the North Fork of the Stillaguamish River, engulfing a rural neighborhood, and covering an area of approximately 1 square mile (2.6 km2). Forty-three people were killed and 49 homes and other structures destroyed.

Nature and flora

2014 Nepal snowstorm disaster

The 2014 Nepal snowstorm disaster occurred in central Nepal during the month of October and resulted in the deaths of at least 43 people of various nationalities, including at least 21 trekkers. Injuries and fatalities resulted from unusually severe snowstorms and avalanches on and around the mountains of Annapurna and Dhaulagiri. The incident was said to be Nepal's worst trekking disaster.

Nature and flora

2014 Malin landslide

On 30 July 2014, a landslide occurred in the village of Malin in the Ambegaon taluka of the Pune district in Maharashtra, India. The landslide, which hit early in the morning while residents were asleep, was believed to have been caused by a burst of heavy rainfall, and killed at least 151 people. The landslide was first noticed by a bus driver who drove by the area and saw that the village had been overrun with mud and earth. In addition to those dead, more than 160 people, and possibly up to 200, were believed to have been buried in the landslide in 44 separate houses. Rains continued after the landslide making rescue efforts difficult.

Nature and flora

Hope Slide

The Hope Slide was the second largest landslide ever recorded in Canada. It occurred in the morning hours of January 9, 1965 in the Nicolum Valley in the Cascade Mountains near Hope, British Columbia, and killed four people. The volume of rock involved in the landslide has been estimated at 47 million cubic metres.

Nature and flora

2014 Badakhshan mudslides

On 2 May 2014, a pair of mudslides occurred in Argo District, Badakhshan Province, Afghanistan. The death toll is uncertain, the number of deaths varying from 350 to 2,700. Around 300 houses were buried and over 14,000 were affected. Rescuers responding to the initial mudslide were struck by a second mudslide, which hampered rescue efforts.

Nature and flora

2012 Gayari Sector avalanche

On 7 April 2012, an avalanche hit a Pakistani military base in Gayari Sector, near the Siachen Glacier region, trapping 140 soldiers and civilian contractors under deep snow. The incident occurred at an altitude of about 4,000 meters and 300 km northeast of Skardu. It was the worst avalanche that the Pakistani military has experienced in the area.

Nature and flora

2005 La Conchita landslide

On January 10, 2005, a major landslide occurred in the town of La Conchita, California. The landslide killed 10 people, and destroyed or damaged dozens of houses. The landslide occurred on part of a previous landslide that occurred in 1995. The historic slides are part of the larger Rincon Mountain slide, which "started many thousands of years ago and will continue generating slides in the future."

Nature and flora, Disasters

2017 Sierra Leone mudslides

On the morning of August 14, 2017, significant mudflow events occurred in and around the capital city of Freetown in Sierra Leone. Following three days of torrential rainfall, mass wasting of mud and debris damaged or destroyed hundreds of buildings in the city, killing 1,141 people and leaving more than 3,000 homeless.

Nature and flora

Tauredunum event

The Tauredunum event of 563 AD was a tsunami on Lake Geneva, triggered by a massive landslide, which caused widespread devastation and loss of life along the lakeshore. According to two contemporary chroniclers, the disaster was caused by the collapse of a mountainside at a place called Tauredunum at the eastern end of Lake Geneva. It caused a great wave to sweep the length of the lake, sweeping away villages on the shoreline and striking the city of Geneva with such force that it washed over the city walls and killed many of the inhabitants.

Nature and flora

2017 Mocoa landslide

The Mocoa landslide was a natural disaster that took place in 2017. During the pre-dawn hours of 1 April 2017, locally heavy rain triggered flash flooding and landslides in the city of Mocoa, Putumayo, Colombia, killing at least 254 people, injuring 332, and leaving 70 others missing. It is the third-deadliest weather-related disaster in Colombian history, and is regarded as the worst catastrophe in the history of Mocoa.

Nature and flora

Rigopiano avalanche

On the afternoon of 18 January 2017, a major avalanche occurred on Gran Sasso d'Italia massif, one of the mountains above Rigopiano, hitting a 4-star hotel in Pescara, in Abruzzo. The avalanche struck the luxury resort Hotel Rigopiano, killing twenty-nine people and injuring eleven others. The avalanche is the deadliest in Italy since the White Friday avalanches in 1916, and the deadliest avalanche in Europe since the Galtür avalanche in 1999.

Nature and flora

1999 Galtür avalanche

The Galtür avalanche occurred on 23 February 1999 in the Alpine village of Galtür, Austria. It took less than 60 seconds to hit Galtür. At 50 metres (160 ft) high and traveling at 290 kilometres per hour (180 mph), this powder avalanche hit with great force, overturning cars, ruining buildings and burying 57 people. By the time rescue crews managed to arrive, 31 people – locals and tourists – had died. This avalanche was considered the worst Alpine avalanche in 40 years. Three major weather systems originating from the Atlantic accounted for large snowfalls totaling around four meters in the area. Freeze-thaw conditions created a weak layer on top of an existing snow pack; further snow was then deposited on top. This, coupled with high wind speeds, created large snow drifts and caused roughly 170,000 tons of snow to be deposited.

Nature and flora

2017 Sichuan landslide

A landslide occurred at about 5:38 am local time on 24 June 2017 in Diexi Town, Mao County, Sichuan Province in south-western China. It destroyed 40 homes in Xinmo Village and killed 10 people, with a further 73 people missing, as of 27 June. A second smaller landslide at around 8:15 pm impeded rescue efforts.

Nature and flora, Transportation

1910 Rogers Pass avalanche

The 1910 Rogers Pass Avalanche killed 62 men clearing a railroad line near the summit of Rogers Pass through the Selkirk Mountains in British Columbia on March 4, 1910. It is Canada's worst avalanche disaster.

Nature and flora

2014 Hiroshima landslides

On 20 August 2014, Hiroshima Prefecture in Japan was struck by a series of landslides following heavy rain. Seventy-four people were reported dead. According to the police, the dead included three boys aged two, three and eleven.