# How Far Can A Human Go Underground?

## Which country has the deepest man made hole?

RussiaRussia holds the record for the deepest man-made hole in the world at more than 40,000 feet deep.

That’s 7.6 miles.

No one has ever reached the Earth’s mantle, although scientists have never given up trying to get to it..

## Why can’t we dig to the center of the Earth?

It’s the thinnest of three main layers, yet humans have never drilled all the way through it. Then, the mantle makes up a whopping 84% of the planet’s volume. At the inner core, you’d have to drill through solid iron. This would be especially difficult because there’s near-zero gravity at the core.

## Can you dig through the earth?

Forget digging down through the hotter part of the crust, into the mantle, where rock squishes and oozes around like jello. And you can completely forget digging through the Earth’s metal inner core, which probably spins faster than the Earth itself. Now, this is practically impossible on every level.

## How thick is Earth’s crust?

about 30 kmThe thickness of the crust beneath continents is much more variable but averages about 30 km; under large mountain ranges, such as the Alps or the Sierra Nevada, however, the base of the crust can be as deep as 100 km. Like the shell of an egg, the Earth’s crust is brittle and can break.

## How much of the earth is undiscovered?

65 percentExcluding dry land, that leaves about 65 percent of the Earth unexplored. There’s a lot out there potentially harboring a lot more plastic bags.

## What is the deepest a human has been underground?

The Kola Superdeep Borehole was just 9 inches in diameter, but at 40,230 feet (12,262 meters) reigns as the deepest hole.

## How hot is it 1 mile underground?

Geologists calculate that, for every mile you dig beneath the Earth’s surface, the temperature rises 15º F and the pressure increases simultaneously at a rate of about 7,300 pounds per square inch. Violations of the 15-degrees-per-mile rule are unknown and constitute the notorious forbidden zone.

## Can humans survive underground?

Living entirely underground would be unprecedented, to the point of being nearly unfathomable. But experts say with good design and a lot of psychological support, humans could make convincing—and surprisingly healthy—mole people. Good thing, too, because the above world is looking increasingly inhospitable.

## How far can we drill into the earth?

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

## What happens if we dig a hole through the earth?

You would just float, being pulled equally by gravity in all directions. That said, you would still be traveling at an unparalleled speed, so you’d zip right through that awesome feeling pretty quickly. As you pass through Earth’s center, still moving at 6 miles per second, the process would begin to reverse.

## Why did they stop digging the Kola Superdeep borehole?

When Dutch artist Lotte Geevan lowered her microphone protected by a thermal shield down the German borehole it picked up a deep rumbling sound that scientists couldn’t explain. Then it was the turn of the Kola Superdeep Borehole. Drilling was stopped in 1992, when the temperature reached 180C (356F).

## What is the deepest hole dug by hand?

Woodingdean WellThe Woodingdean Well is 1,285 feet deep. It’s the deepest hole that humans have dug by hand. 33 Chilean miners were trapped in a mine for about 2 months in 2010. The Burj Khalifa would go 2,722 feet below the surface.

## How long would it take to fall through Earth?

42 minutesThe acceleration of gravity is 9.8m/s2 and the radius of the Earth is 6.378 million meters. This means that you would fall through the entire Earth in only 42 minutes!

## What is the deepest place on Earth?

Mariana TrenchThe Mariana Trench, in the Pacific Ocean, is the deepest location on Earth.

## How deep can you dig?

Deepest drillings The Kola Superdeep Borehole on the Kola peninsula of Russia reached 12,262 metres (40,230 ft) and is the deepest penetration of the Earth’s solid surface. The German Continental Deep Drilling Program at 9.1 kilometres (5.7 mi) has shown the earth crust to be mostly porous.