Udachny

city Udatschny Удачный ( Russian ) Удачнай ( Yakut ) flag coat of arms Federal district far East republic Sakha (Yakutia) Ulus Mirny mayor Yuri Beskrowny Founded 1968 City since 1987 surface 2  km² population 12,613 inhabitants (as of Oct. 14, 2010) Population density 6307 inhabitants / km² Height of the center 380  m Time zone UTC + 9 Telephone code (+7) 41136 Post Code 678188 License Plate 14th OKATO 98 231 509 Website www.udachny.ru Geographical location Coordinates 66 ° 24 '  N , 112 ° 18'  E Coordinates: 66 ° 24 '12 "  N , 112 ° 18' 10"  E

Situation in Russia

Location in the Sakha Republic

List of cities in Russia

Udatschny ( Russian Удачный , Yakut Удачнай / Udatschnaj ) is a city in the Republic of Sakha (Yakutia) ( Russia ) with 12,613 inhabitants (as of October 14, 2010).

geography

Residential area in Udachny

The city is located on the Viljuiplateau , about 1300 km northwest of the republic capital Yakutsk , on the river Daldyn and its tributary Sytykan . The Daldyn is a left tributary of the Marcha which flows into the Wiljui . The climate is continental.

The city of Udachny is administratively subordinate to the Mirny Raion . It consists of three, spaced-several kilometers away districts Nadjoschny , Novy Gorod and Polyarny .

Udatschny has an airport and is connected by a paved road with Aichal , the district administrative center of Mirny, 500 kilometers to the south, and Lensk an der Lena .

history

Diamond mine Udachnaya pipe

In 1955, the Udatschnaja kimberlite vent (66.4 N, 112.3 O) was discovered, but initially not exploited because of its far more northerly location compared to the diamond deposits near Mirny. In 1968 the settlement named after the chimney was built ( udatschny and udatschnaja are Russian adjective forms of udatscha for luck , success ). In 1987 the place received city rights.

On October 2, 1974, an underground nuclear explosion of 1.7  kilotons was carried out 7 kilometers northwest of the village, 4 km from the diamond mine, under the code name Kristall at a shallow depth (98 m) 66 ° 27 ′ 26.2 ″  N , 112 ° 23 '56.1 "  O . With eight originally planned blasts, a reservoir was to be built for the waste water from the factory to enrich the diamond-bearing rock. However, due to problems with radioactive products that had leaked contrary to the plans , one blast was left - one of the few ever carried out with civilian goals. It was not until 18 years later that the borehole in which the blast took place was sealed with a rock "sarcophagus" that was estimated to be seven to twenty meters thick.

Population development

year	Residents
1970	2,036
1979	11,604
1989	19,603
2002	15,698
2010	12,613

Note: census data

economy

Udatschny is after Mirny the second most important center for diamond mining by the Russian state group ALROSA .

See also

• List of cities in the Sakha Republic

Web links

Commons : Udatschny  - collection of pictures, videos and audio files

• City administration website (Russian)
• Udatschny on mojgorod.ru (Russian)
• Article about nuclear explosion 1974 and status 2000-2001 (Russian)

Individual evidence

1. ↑ ^{a b} Itogi Vserossijskoj perepisi naselenija 2010 goda. Tom 1. Čislennostʹ i razmeščenie naselenija (Results of the All-Russian Census 2010. Volume 1. Number and distribution of the population). Tables 5 , pp. 12-209; 11 , pp. 312–979 (download from the website of the Federal Service for State Statistics of the Russian Federation)