Sediment Disasters in the world 2020

Sediment Disasters in the world 2020

Apri.1.-.December30, 2020

Date of occurrence Country Type Summary
4 January Indonesia Flood The death toll from the floods that hit metropolitan Indonesia (as of 4 January) rose to 60, with two people still missing.
12-14 January Pakistan, Afghanistan, India. Snow Avalanche A number of snow avalanches caused by heavy snow killed at least a total of 138 people in Pakistan, Afghanistan and India between 12 and 14 January. In Pakistan, a total of 55 people were killed in several avalanches in the Kashmir region on 14 January. In Afghanistan, the death toll from heavy snowfall has reached 39 since 12 January. There have been many other deaths in Pakistan and Afghanistan. In India, a total of 12 soldiers and civilians were killed in multiple avalanches.
29 January Brazil Flood
Collapse		 In Brazil, the death toll from floods and landslides caused by heavy rains rose to 64 by 29 January. In the state of Minas Gerais in south-eastern Brazil, the hardest hit by the rains, 53 people were killed and 65 injured by 29 January. Nine people were killed in the southeastern state of Espirito Santo, two in the southeastern state of Rio de Janeiro, and at least 19 others are missing. In addition, more than 60 000 people have been forced to evacuate.
1 March  Brazil Flood
Collapse		 At least 32 people were killed between 1 and 5 March as torrential rains continued in the southern Brazilian states of São Paulo and Rio de Janeiro. In the states of São Paulo and Rio de Janeiro, dozens of people were still missing as of 5 March and more than 5,000 people had been evacuated. Rio de Janeiro received heavy rainfall on the morning of 2 March alone, more than half the average amount for the month of March. Rainfall in Santa Cruz reached about 150 mm in 32 hours, close to the amount of rainfall in one month in March.
19 June USA A state of emergency was declared in Midland County, Michigan, US, due to two dams breaching after days of torrential rains, and the centre of Midland suffered severe flooding, with water levels reaching up to 1.5 metres as of 20 June. It stated that 10 000 local residents had been evacuated.
29 June China Sediment and
Flood damage		 At least 12 people were killed by torrential rain over the weekend in Mianning county, Sichuan province, on 29 June, and many residents were forced to evacuate due to rising rivers.
June –  July China Sediment and
Flood damage		 A total of 38 million people in 27 provinces, cities and autonomous regions have been affected by floods and other disasters caused by record-breaking rainfall that has continued since June in a wide range of regions, including southern China, with a total of 141 people dead or missing. 28,000 buildings have collapsed or otherwise been damaged. Water levels continued to rise in the middle and lower reaches of the Yangtze River and surrounding lakes, with 212 rivers exceeding the warning line. Landslides also occurred in Hubei and other provinces, resulting in increased economic losses.
2 July Myanmar Landslide A large number of people were buried alive after a pile of sediment and stones collapsed in a jade mine in Pakan, Kachin State, northern Myanmar, on the morning of 2 July. At least 162 people were killed.
9 July Nepal Landslide Sixty people were killed and 41 others were missing as a result of flooding and landslides caused by heavy rains that began on 9 July.
13 July Indonesia Flash flood At least 21 residents were killed by the flash floods that hit many districts of North Luwu Regency in South Sulawesi on 13 July; as of the afternoon of 15 July, 156 families (655 people) had been evacuated, 4,202 families (15,994 people) were affected, 4,930 houses were under water, 10 houses were washed away and 213 houses were buried under sediment. The floods were triggered by heavy rains over the past two days. The Masamba, Lonkan and Sungai Lada rivers overflowed and flash floods occurred.
7 August India Collapse A massive landslide triggered by heavy monsoon rains occurred in Idukki district, about 250 km from Thiruvananthapuram, the capital of the south-western Indian state of Kerala. Dozens of tea plantation workers were involved and at least 43 bodies were recovered.
26 August Afghanistan Flash flood Flash floods killed more than 100 people and damaged hundreds of homes in Charikar, capital of eastern Afghanistan’s Parwan province, as heavy rains hit the region.
2 September Nepal  Sediment and
Flood damage		 14 people were killed and 41 others are missing due to  Sediment and Flood damage and flooding in Dhorpatan village, Baglung district.
11 September Congo Collapse On 11 September, a gold mine in South Kivu Province, eastern Democratic Republic of Congo, was hit by a collapse caused by continuous rain, and sedimernt and water flowed into the mine shaft. More than 50 miners, were trapped in the mine shaft.
13 September Nepal Sediment and
Flood damage		 At least 11 people were killed, five injured and 20 missing after 11 houses were destroyed in a landslide due to heavy rains in Gumthang, Bahrabise village, Sindhupalchok district, eastern Nepal, on 13 November.
28 September Indnesia Landslide On 28 September, heavy rains caused landslides in three locations in Tarakan, North Kalimantan, killing 10 people.
3 Octomber France Italy Debrisflow The Franco-Italian border region was hit by severe storms, torrential rains and flash floods, which killed two people in Italy and left eight missing in France by 3 October.
12 Octomber Vietnam Landslide A landslide occurred at the Rao Trang 3 hydropower plant under construction in Phong Xuan village (xa Phong Xuan, huyen Phong Dien), Phong Dien district, Thua Thien Hue province, North Central region, in the early hours of 12 January (at noon according to initial reports), leaving 30 workers at the construction site and members of the search and rescue team missing. A total of 30 workers at the construction site and members of the rescue team who were on their way to search and rescue were reported missing.
18 Octomber Vietnam Sediment and
Flood damage		 Torrential rains, which have been continuing since 6 Octomber, have caused extensive damage across a wide area of the central region, with 84 people killed and 38 missing by 18 Octomb
28 Octomber Vietnam Collapse On 28 November, 21 people were killed in landslides in central Vietnam following Typhoon Molave (Asian name: Molave).
30 Octomber El Salvador Collapse Six people were killed and about 35 others were missing when heavy rains triggered collapses on the outskirts of San Salvador, the capital of El Salvador, Central America, on 30 Octomber. In Nejapa, about 15 km north of the capital, 50 houses were swept away by sediment movement and some 35 people were evacuated from the affected area.
1  Nobember Philippines Collapse On 1 November, Typhoon Goni (Asian name: Goni) killed at least 16 people and destroyed more than 20,000 houses, with some 55,500 partially destroyed. In southern Luzon, fierce winds and heavy rains toppled utility poles, while flooding and collapses engulfed houses in the province of Albay, killing 10 people. Three of the 10 people killed were caught in collapses of volcanic ash layers that occurred in two villages near Mayon, a volcano in the province.
6 Nobenmber Guatemala Collapse A series of sediment disasters occurred in Guatemala, Central America, on 6 June following the landfall of the major hurricane Eta. Unofficially, about 150 people were killed or went missing. Entire villages were buried under mud and sand, 150 houses were buried under mud and sand, and 100 people were killed. In addition, 10 people were killed in a landslide in the north-eastern province of Huehuetenango, which borders Mexico.
25 December Iran Snow Avalanche Blizzard and snow avalanche in mountainous region north of Iran’s capital Tehran kills eight climbers and at least seven others are missing.
30 DEcember Norway Collapse Twelve people are missing and 10 injured after a massive landslide occurred during the night in Ask, a village of about 1,000 inhabitants in Gjerdrum, about 25 km north-east of the Norwegian capital Oslo. The ‘Quick Clay Landslide’ occurred over an area approximately 300 metres deep and 700 metres wide. Quickclay is a cohesive soil found in Norway and Sweden that is known to collapse and fluidise when subjected to excessive forces.

References:Sedement Disaster in the world:SABO,No.27,Vol129,Sabo & Landslide  Technical Cnter