This is a list of gold mining disasters including environmental, such as those arising due to dam failure, cyanide leakage into the environment, as well as inappropriate environmental toxic waste discharge due to the gold cyanidation technique used in gold mining. Other disasters at gold mines such as those resulting in loss of life are also listed.
Year | Mine | Location | Majority Owner | Company Location | Details |
---|---|---|---|---|---|
1882 | Creswick | Australia | New Australasian Gold Mine disaster: Australia's worst below-ground gold mining disaster. [1] | ||
1971 | Certej Mine | Romania | 1971 Certej dam failure: A dam failure resulted in the leak of 300,000 cubic metres of cyanide-contaminated flood Certeju de Sus, resulting in 89 deaths. | ||
1984-2013 | Ok Tedi Mine | Papua New Guinea | BHP | Australia | Ok Tedi environmental disaster: Unrestricted waste discharges from the mine had strong effects on the environment and the 50,000 people who live downstream. Over 2 billion tons of untreated mining waste were thus discharged. |
1984-2013 | Summitville mine | USA | Galactic Resources | Canada | A Canadian-based company used gold cyanidation process to extract gold, resulted in 610,000 m³ of stored toxic water. Following the company's bankruptcy, the US government spent over $155 million to clean the site. |
1995 | Omai mine | Guyana | Omai Gold Mines (subsidiary of Cambior) | Canada | 3 million cubic metres of cyanide-tainted waste was spilled into the Omai river and then the Essequibo river following a dam failure. [2] |
1996 | Mt. Tapian | The Philippines | Marcopper Mining | Canada | Marcopper mining disaster: A fracture of the drainage tunnel for a tailings pit led to discharge of toxic waste into Makulapnit-Boac river system, causing large-scale destruction of crops, burying one village with mud and requiring 20 other villages to be evacuated. |
1998 | Kumtor Gold Mine | Kyrgyzstan | Centerra Gold | Canada | A truck carrying 1,762 kg of sodium cyanide fell into the Barskaun River. An international independent group of experts studied the impact of the accident and concluded that no one was killed or poisoned as a result of the accident. [3] |
2000 | Baia Mare | Romania | Esmerelda Exploration Limited | Australia | 2000 Baia Mare cyanide spill: A dam failure resulted in the leak of 100,000 cubic metres of cyanide-contaminated water which spilled into the Someş and Tisza. Pollution flowed into Europe's second largest river, the Danube, and finally into the Black Sea, across six countries. Hungary asserted the spill killed 1,241 tonnes of fish in Hungary alone. [4] |
2000 | Tolukuma gold mine | Papua New Guinea | Dome Resources | Australia | A one-tonne cyanide crate fell from a helicopter into the jungle, while heavy rain in the area washed 100–150 kg of it into a river. [5] |
2006 | Beaconsfield gold mine | Australia | Beaconsfield Mine collapse: 1 miner was killed and 2 were trapped underground for a fortnight. [6] | ||
2009 | Ahafo gold mine | Ghana | Newmont | USA | Overflow of process solution containing sodium cyanide occurred within the processing plant site at Newmont Ghana's open pit Ahafo Mine. This resulted in water contamination and fish mortality. [7] |
5 August 2015 | Gold King Mine | USA | USA | 2015 Gold King Mine waste water spill: In Silverton, Colorado, Environmental Protection Agency (EPA) personnel, along with workers for Environmental Restoration LLC, caused the release of toxic waste water into the Animas River watershed. [8] | |
2015 | Veladero mine, San Juan province | Argentina | Barrick Gold | Canada | 1,072 cubic meters of cyanide solution reached the Potrerillos River due to a valve failure. [9] |
2019 | Kampine mine, Kampine town, Maniema | Democratic Republic of the Congo | 22 illegal miners dead in an illegally run mine. [10] | ||
2020 | Kamituga mine, Kamitung town, South Kivu | Democratic Republic of the Congo | 50+ people died after a mine collapse due to heavy rain. Three tunnels to the mine were blocked as a result of the heavy flow of water. [11] | ||
7 November 2021 | Kondago village | Niger | Niger | Niger gold mine collapse - 30+ miners killed. [12] | |
21 February 2022 | Gbomblora | Burkina Faso | Informal site | Burkina Faso | Gbomblora explosion - 60 people killed; over 100 people were injured. [13] |
13 February 2024 | Çöpler Gold Mine, İliç, Erzincan | Turkey | SSR Mining, Anagold Mining | USA, Turkey | 9 miners under cyanide containing soil landslide. [14] |
2024 | Eagle Gold Mine | Canada | Victoria Gold Corp | Canada | On June 24, 2024, 300,000 cubic metres of cyanide-contaminated water leaked from a heap leach failure in Victoria Gold Corp's Eagle Gold Mine site near Mayo, Yukon. The failure resulted in the company being forced into court ordered receivership and its stock being delisted from the TSX. [15] |
Mining is the extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. The ore must be a rock or mineral that contains valuable constituent, can be extracted or mined and sold for profit. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water.
Gold cyanidation is a hydrometallurgical technique for extracting gold from low-grade ore by converting the gold to a water-soluble coordination complex. It is the most commonly used leaching process for gold extraction. Cyanidation is also widely used in the extraction of silver, usually after froth flotation.
A mining accident is an accident that occurs during the process of mining minerals or metals. Thousands of miners die from mining accidents each year, especially from underground coal mining, although accidents also occur in hard rock mining. Coal mining is considered much more hazardous than hard rock mining due to flat-lying rock strata, generally incompetent rock, the presence of methane gas, and coal dust. Most of the deaths these days occur in developing countries, and rural parts of developed countries where safety measures are not practiced as fully. A mining disaster is an incident where there are five or more fatalities.
Newmont Corporation is an American gold mining company based in Greenwood Village, Colorado. It is the world's largest gold mining corporation. Incorporated in 1921, it owns gold mines in Nevada, Colorado, Ontario, Quebec, Mexico, the Dominican Republic, Australia, Ghana, Argentina, Peru, and Suriname. In addition to gold, Newmont mines copper, silver, zinc and lead.
Gold mining is the extraction of gold by mining.
Galamsey refers to illegal small-scale gold mining in Ghana. The term is derived from the English phrase "gather them and sell". Historically, galamsey referred to traditional small-scale mining practices in Ghana, where local communities would gather and search for gold in rivers and streams. However, over time, the term has taken on a broader meaning, encompassing both legal and artisanal small-scale mining (ASM). In Ghana, those involved in these activities are called galamseyers, and in neighbouring Francophone countries such as Ivory Coast and Burkina Faso, they are often referred to as orpailleurs. Ghana's widespread illegal mining activities have caused extensive destructing to the gold-rich West African country's forests.
Gold Fields Limited is one of the world's largest gold mining firms. Headquartered in Johannesburg, South Africa, the company is listed on both the Johannesburg Stock Exchange (JSE) and the New York Stock Exchange (NYSE). The firm was formed in 1998 with the amalgamation of the gold assets of Gold Fields of South Africa Limited and Gencor Limited. The company traces its roots back to 1887, when Cecil Rhodes founded Gold Fields of South Africa Limited. As of 2019, Gold Fields was the world's eighth-largest producer of gold.
Romania ranks tenth in the world in terms of the diversity of minerals produced in the country. Around 60 different minerals are currently produced in Romania. The richest mineral deposits in the country are halite.
The Marcopper mining disaster is one of the worst mining and environmental disasters in Philippine history. It occurred on March 24, 1996, on the Philippine island of Marinduque, a province of the Philippines located in the Mimaropa region. The disaster led to drastic reforms in the country's mining policy.
The 2000 Baia Mare Cyanide spill was a leak of cyanide near Baia Mare, Romania, into the Someș River by the gold mining company Aurul, a joint-venture of the Australian company Esmeralda Exploration and the Romanian government.
The Mutanda Mine is an open-pit copper and cobalt mine in the Lualaba Province of the Democratic Republic of the Congo (DRC). It is the largest cobalt mine in the world. Accidents and spills at the mine have killed workers and polluted nearby rivers and fields. An NGO that has documented impacts of the mine concluded that spills have threatened community members' right to food.
The Tarkwa mine is one of the largest gold mines in the Ghana and in the world. The mine is located in the south-west of the country in the Western Region. The mine has estimated reserves of 15.1 million oz of gold.
The Ahafo mine is one of the largest gold mines in the Republic of Ghana and in the world. The mine is located in the center of the country in Brong-Ahafo Region. The mine has estimated reserves of 17 million ounces of gold.
The 2015 Gold King Mine waste water spill was an environmental disaster that began at the Gold King Mine near Silverton, Colorado, when Environmental Protection Agency (EPA) personnel, along with workers for Environmental Restoration LLC, caused the release of toxic waste water into the Animas River watershed. They caused the accident by breaching a tailings dam while attempting to drain ponded water near the entrance of the mine on August 5. After the spill, the Silverton Board of Trustees and the San Juan County Commission approved a joint resolution seeking Superfund money.
The Mariana dam disaster, also known as the Bento Rodrigues or Samarco dam disaster, occurred on 5 November 2015, when the Fundão tailings dam at the Germano iron ore mine of the Samarco Mariana Mining Complex near Mariana, Minas Gerais, Brazil, suffered a catastrophic failure, resulting in flooding that devastated the downstream villages of Bento Rodrigues and Paracatu de Baixo, killing 19 people. The extent of the damage caused by the tailings dam collapse is the largest ever recorded with pollutants spread along 668 kilometres (415 mi) of watercourses.
The structural failure of tailings dams and the ensuing release of toxic metals in the environment is a great concern. The standard of public reporting on tailings dam incidents is poor. A large number remain completely unreported, or lack basic facts when reported. There is no comprehensive database for historic failures. According to mining engineer David M Chambers of the Center for Science in Public Participation, 10,000 years is "a conservative estimate" of how long most tailings dams will need to maintain structural integrity.
The Niger gold mine collapse occurred on 7 November 2021 when a manually dug well collapsed at the Garin-Liman mining area of Maradi region, Niger. The day of the mine disaster left 18 people dead on the spot, 7 injured and hospitalised, and dozens of miners buried underground waiting to be rescued. However, equipment limitations have slowed the rescue process. On 9 November 2021, two days after the mine disaster, rescuers found more bodies in the collapsed mine. Eventually, the number of people killed in the accident rose to 32. Since the incident took place on the border between Niger and Nigeria, a large number of Nigerians work in the area. According to reports, among the victims, 13 were Nigerians.