The Vajont disaster was an environmental and human disaster that occurred on the evening of 9 October 1963, in the new artificial hydroelectric basin of the Vajont stream (on the border between Friuli and Veneto), due to the fall of a landslide from the overhanging slope of Mount Toc in the waters of the alpine basin created with the dam of the same name; the consequent overflow of the water contained in the reservoir, with the effect of washing away the shores of the lake, first involved Erto and Casso, villages near the lake shore after the construction of the dam, while the overcoming of the dam by the generated wave caused the flooding and destruction of the inhabited areas of the Veneto valley, including Longarone, and the death of 1917 people.
The Vajont disaster was an environmental and human disaster that occurred on the evening of 9 October 1963, in the artificial hydroelectric reservoir of the Vajont stream (on the border between Friuli and Veneto), due to the fall of a landslide from the above slope of Mount Toc into the waters of the alpine reservoir created by the dam of the same name; The consequent overflow of the water contained in the reservoir, with the effect of washing away the banks of the lake, first involved Erto and Casso, towns close to the shore of the lake after the construction of the dam, while the overtopping of the dam by the wave generated caused the flooding and destruction of the villages in the Veneto valley bottom, including Longarone, and the death of 1917 people.