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 Zemlya the west coast was mapped. Henry Hudson was another explorer who passed through Novaya Zemlya while searching for the Northeast Passage. The islands were systematically surveyed by Pyotr Pakhtusov and Avgust Tsivolko during the early 1830s. The first permanent settlement was established in 1870 at Malye Karmakuly, which served as capital of Novaya Zemlya until 1924. Later the administrative center was transferred to Belushya Guba, in 1935 to Lagernoe, but then returned to Belushya Guba. Small numbers of Nenets were resettled to Novaya Zemlya in the 1870s in a bid by Russia to keep out the Norwegians. This population, then