The Kola Superdeep Borehole SG-3 (Russian: Кольская сверхглубокая скважина СГ-3, romanized: Kol'skaya sverkhglubokaya skvazhina SG-3) is the deepest human-made hole on Earth (since 1979), which attained maximum true vertical depth of 12,262 metres (40,230 ft; 7.619 mi) in 1989. [1] .

May 6, 2019 · This is the Kola Superdeep Borehole, the deepest manmade hole on Earth and deepest artificial point on Earth. The 40,230ft-deep (12.2km) construction is so deep that locals swear you can...

Reaching a depth of 12,262 meters (40,230 feet), it remains the deepest man-made hole on Earth to this day. Originally intended as a scientific exploration of the Earth’s crust, the project...

Oct 20, 2023 · The Kola Superdeep Borehole, located in Russia, is the world's deepest man-made hole, reaching a depth of 40,230 feet (12,262 meters) or 7.6 miles (12.2 kilometers), surpassing the depth of the Mariana Trench and the height of Mount Everest.

May 21, 2021 · Known as the Kola Superdeep Borehole, the ludicrously deep hole was located on the Kola Peninsula in the frosty depths of northwestern Russia, not far from the Russian border with Norway. The...

Feb 22, 2020 · Known as the Kola Superdeep Borehole, the deepest hole ever dug reaches approximately 7.5 miles below the Earth’s surface (or 12,262 meters), a depth that took about 20 years to reach.*

The Kola Superdeep Borehole (Russian: Кольская сверхглубокая скважина, Kolskaya sverkhglubokaya skvazhina) was a very deep hole dug on the Kola Peninsula in Russia during 1970-1992 and closed by 2008. It was dug in order to learn more about the inside of the Earth. Digging started on May 24, 1970.

May 11, 2017 · The Kola Superdeep Borehole boasts of being the deepest hole, but it is not the longest hole. After two decades of holding both records, Al Shaheen, a 7.64-mile oil well was dug in Qatar in 2008. In 2011, an oil well 7670.8 miles deep was drilled offshore the …

Nov 19, 2024 · Known as the Kola Superdeep Borehole SG-3, this Russian dig has been the deepest man-made hole on Earth since 1979. The SG-3 hit the all-important depth of 40,230 ft in 1989, with research into the makeup of the Earth's crust and to look at seismic activity.

Jun 12, 2021 · From 1970 to 1994, in the western Russian province of Murmansk, the Kola Superdeep Borehole drilled to the deepest point ever reached below Earth’s surface. Housed in this 27-story superstructure, it found high temperatures, gases, fractures, water, and Precambrian fossils, and changed some long-standing scientific hypotheses.