The deepest man-made borehole in the world is the Kola Superdeep Borehole (Russia, 1989) at 12,262 meters (7.6 miles). The deepest natural ocean depth is about 6.8 miles (11000 meters), in the Marianas Trench near Guam.
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The deepest man-made hole in the Earth is located in the Kola Peninsula in northwestern Russia. The depth achieved from the surface was 12,262 meters, roughly 7.5 miles. The 9" bore hole was created by a rotating bit spun by the pumping of drilling mud. Unexpectedly high temperatures caused the stoppage of the drilling in 1994, 24 years after drilling was started. The goal of the Russians was to drill to the Moho, the boundary between the crust and the mantle, but the goal was not reached.
See the link below for additional very interesting information on the project.
The deepest point in any ocean is the Mariana Trench (aka Challenger Deep) in the western Pacific Ocean at 11,033 metres deep.
The Kola Superdeep Borehole is a man made hole that is the deepest on earth. In 2007 it reached a depth of 40,230 feet or 12,262 meters. It is located in Russia on the Kola Peninsula.
It would be in Russia on there Kola Peninsula. It is about 40,000 feet deep. They have been drilling since the 1970s.
The deepest hole drilled into the crust of the earth is 7 miles (12 km.) deep. The hole is on the Kola Peninsula in the USSR
Challenger deep
This can be answered in two ways.Man has gone "in person" as deep as the deepest mine, TauTona in Carletonville, South Africa at 3.9 kilometres.Boreholes have been made even deeper.The present holder of this record is the Kola Superdeep Borehole in Russia. It reached 12.262 kilometres in 1989.
No, scientists have not yet drilled into the Earth's lower mantle. This region of the Earth is located about 400 to 1,800 miles below the surface, making it extremely difficult to reach with current drilling technology. The deepest hole ever drilled, the Kola Superdeep Borehole in Russia, only reached about 7.5 miles deep.
The world's widest river is the Amazon, extending six miles wide in some places.
The Philippine Deep is located in the western North Pacific Ocean, to the east of the Philippines. It is one of the deepest parts of the earth's oceans, reaching depths of over 10,000 meters.