Height, depth and spaceWorld record
Deepest human-made hole on Earth
Record
12.262 km
7.619 mi
- Record holder
- Kola Superdeep Borehole SG-3
- Year
- Standing since
- 1989 (37 years)
What to remember
On the Kola Peninsula, near the Russian border with Norway, a Soviet scientific drilling effort reached a true vertical depth of 12,262 metres (40,230 ft) in 1989. SG-3 had already become the deepest human-made hole in 1979.
Drilling began on 24 May 1970 in the Pechengsky District, near the town of Zapoliarny, with one aim: to go as deep as possible into the Earth's crust. SG stands for a set of superdeep boreholes planned as part of a Soviet research programme in the 1960s, 1970s and 1980s.
The record is about the true vertical depth reached by the borehole.
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Sources and licences
- Value, holder and date: Wikipedia article “Kola Superdeep Borehole” (revision used 1379071787). Data from Wikipedia, licensed under CC BY-SA 4.0.
- Photo: Andre Belozeroff, Photo licensed under CC BY-SA 3.0 (Wikimedia Commons).
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