Pyotr Pakhtusov Pyotr Pakhtusov Pyotr Kuzmich Pakhtusov () (1800 in Kronstadt – November 19, 1835 in Arkhangelsk) was a Russian surveyor and Arctic explorer. He is credited with the first thorough survey of Novaya Zemlya. Between 1832 and 1835 Pakhtusov undertook two exploratory journeys to Novaya Zemlya. He wintered on the island on the two occasions and took detailed meteorological observations. Pakhtusov carefully surveyed the southern and eastern parts of Novaya Zemlya along with fellow explorer and cartographer Avgust Tsivolko during the last two years of the expedition. Thanks to their work the first reliable maps of Novaya Zemlya's southern shores and
Novaya Zemlya Novaya Zemlya. The launch rocket was subsequently deployed to Cuba. 1963 saw the implementation of the Limited Test Ban Treaty which banned most atmospheric nuclear tests. The largest underground test in Novaya Zemlya took place on September 12, 1973, involving four nuclear devices of 4.2 megatons total yield. Although far smaller in blast power than the Tsar Bomba and other atmospheric tests, the confinement of the blasts underground led to pressures rivaling natural earthquakes. In the case of the September 12, 1973, test, a seismic magnitude of 6.97 on the Richter Scale was reached, setting off an 80 million ton