Tsar Bomba C), north of the Arctic Circle over the Novaya Zemlya archipelago in the Arctic Ocean. The bomb was dropped from an altitude of ; it was designed to detonate at a height of over the land surface ( above sea level) by barometric sensors. The original, November 1961, United States Atomic Energy Commission estimate of the yield was 55–60 megatons, but since 1992, all Russian sources have stated its yield as 58.6 megatons. First secretary Khrushchev warned in a filmed speech to the Supreme Soviet of the existence of a 100-megaton bomb (technically the design was capable of this yield.)
Novaya Lyalya of Novaya Lyalya together with sixteen rural localities in Novolyalinsky District are incorporated as Novolyalinsky Urban Okrug. Novaya Lyalya Novaya Lyalya () is a town and the administrative center of Novolyalinsky District in Sverdlovsk Oblast, Russia, located on the Lyalya River, north of Yekaterinburg, the administrative center of the oblast. Population: It was founded in 1723 as a settlement around a copper-melting plant (which closed by 1744). It was granted town status in 1938. Within the framework of administrative divisions, Novaya Lyalya serves as the administrative center of Novolyalinsky District. As an administrative division, it is, together with seven rural