Ne ricordo alcuni verificatisi in anni recenti: Summitville nel Colorado, Carson Hill in California, Brewer in South Carolina, Harmony in Sud Africa, Omai in Guyana, Gold Quarry in Nevada, Zortman-Landusky in Montana, Kumtor in Kyrgyzstan, Homestake in South Dakota, Placer nelle Filippine, Baia Mare in Romania e Tolukuma in Papua Nuova Guinea.
Let us recall just a few from recent years: Summitville in Colorado, Carson Hill in California, Brewer in South Carolina, Harmony in South Africa, Omai in Guyana, Gold Quarry in Nevada, Zortman-Landusky in Montana, Kumtor in Kyrgyzstan, Homestake in South Dakota, Placer in the Philippines, Baia Mare in Romania and Tolukuma in Papua New Guinea.