As we are becoming more and more technologically advanced, scientists are able to utilize the technology to learn and understand our planet better. It is true that we know more about the solar system than we do about our own planet. With more than 70% of the world’s oceans yet to be explored and new marine species and life to be discovered, we still haven’t touched the tip of the iceberg. As part of the expedition, scientists sometimes dig as deep as possible to understand the sediments or to collect microbial life from the drill samples. Here, we are listing some of the deepest places on Earth, that were either formed naturally or manmade.
1. The Mir Diamond Mine is about 525 meters deep or 1,722 ft and has a diameter of 1,200 meters (3,900 ft).
The Mir diamond mine is one of the prestigious treasures of Russia. Located in the city of Mirny, Eastern Siberia (Russia), the Mir or the Mirny Mines, is among the world’s largest man-made holes. The mine is about 525 meters (1,722 ft) deep with a diameter of 1,200 meters (3,900 ft) and has been active since 1957 to 2011. One of the biggest issues with the mine was helicopters getting sucked into the mine while flying over it. The mine is so ginormous that the downward air flow is too powerful for aircrafts or helicopters to overcome. After several incidents, the airspace above the mine was declared a no-fly zone for safety reasons.
During the 1960’s alone, the Mir mine was producing almost 10,000,000 carats of diamond per year. Within just a decade, Russia become the third largest producer of diamonds in the industry, managing to produce the finest quality diamonds. The largest ever diamond was discovered on December 23, 1980, which weighed 342.5 carats (68 g) and was given the name “26th Congress CPSU”. (source)
2. The Nongle sinkhole in China is one of the biggest sinkholes in our planet and was only discovered recently.
There are less than a hundred natural sinkholes or “sky holes” in the whole world. These scary looking holes can be extremely deep and are formed mostly on land with limestone deposits. As time goes by, the groundwater can dissolve limestone from underground and create caverns. Over time, these underground caverns can collapse and form a sinkhole. In 2018, a team of Chinese-British speleologists discovered the existence of one such sinkhole, which measures 656 ft long, 328 ft broad and 387 ft deep, in the limestone mountains of Nongle in the region of Guangxi Zhuang, southern China. If the sinkhole is measured from the access point, then it is even deeper; with 1,476 ft. (source)
3. Lake Baikal in Southern Russia is the world’s deepest lake. With a depth of 5,387 ft, 1,642 meters), and its bottom is approximately 3,893 feet (1,187 meters) below sea level. It is also the world’s largest freshwater lake in terms of volume.
The world’s deepest lake is located in Southern Russia. With an estimated 5,387 feet deep (1,642 meters), it is also the world’s largest freshwater lake in terms of volume. The reason why the lake is so deep is due to the fact that it is located in an active continental rift zone; which is widening at a rate of about 1 inch (2.5 centimeters) per year. So, every year, as the rift goes wider, the lake becomes deeper and scientists predict that Lake Baikal will continue to increase its depth forever.
The world’s largest freshwater lake also holds 20% of world’s entire unfrozen surface fresh water. Lake Baikal not only holds the record for the deepest lake in the world, but for the clearest one too. Estimated to be approximately 25 million years old, during extreme winter seasons, the frozen lake allows visitors to trek across crystal clear ice. The lake is also known to contain underwater gas pockets, which often cause spontaneous ignition of methane. (source)
4. The Dragon Hole is the world’s deepest blue hole, plummeting to depths of 300m (987ft). Researchers say this sinkhole in the South China Sea is the deepest in the world.
In 2016, a team of Chinese scientists discovered what they believe may be the deepest “blue hole” on the planet. According to China’s state-run Xinhua news agency, the Dragon Hole is 987 feet deep ― or more than 300 feet deeper than Dean’s Blue Hole in the Bahamas. Basically, blue holes are giant pits in the sea that can be hundreds of feet deep and have the distinct blue color which makes them easily visible from above. The Dragon Hole is located in the Paracel Islands, a disputed island group in the South China Sea claimed by China, Taiwan and Vietnam. According to scientists, the Dragon Hole can provide detailed records of how the climate or water level changed over tens of thousands of years. (source)
5. “Y-40 The Deep Joy”, is the world’s deepest swimming pool with a depth of 131 feet; equivalent to the height of a 12-story building.
The Y-40 might not be your average swimming pool but it certainly can give you one of the best experiences in your life. The pool, which is located at the 4-star Hotel Terme Millepini complex in Montegrotto Terme, Italy, is the world’s deepest pool. Measuring 21×18 meters (69×59 feet) and with a maximum depth of 40 meters (131 feet), it is equivalent to the height of a 12-story building. The Y-40 was designed by architect Emanuele Boaretto and his initial goal was to create the world’s best swimming pool. However, after it was built, the pool managed to make it to the Guinness Book of World Records. The temperature in the water is also maintained at 32°C to 34°C (89°F to 93° F), so that swimmers can dive all the way to the dip without the need of any external suits. (source)
6. The Mariana Trench, a deep-sea trench in the floor of the western North Pacific Ocean, is the deepest such trench known on Earth, stretching for more than 1,580 miles (2,540 km) with a mean width of 43 miles (69 km).
The exact depth of the Mariana Trench is unknown to this day since there are technical challenges of delivering instruments to such a remote location and obtaining accurate measurements. In 1875, scientists made the first attempt to measure the depth. With the help of sound measuring devices, the southern end of the trench was measured to be 26,850 feet (8,184 meters). It wasn’t until 1957 that scientists were able to measure and come to the realization that the trench is far deeper than it looks.
The deep-sea trench in the floor of the western North Pacific Ocean, stretches for more than 1,580 miles (2,540 km) with a mean width of 43 miles (69 km) and is the deepest such trench known on Earth. According to scientists, the trench is so deep that at the bottom, that the water pressure is eight tons per square inch and the temperature is 33-39 degrees Fahrenheit; just above freezing. (source)
7. The Great Guatemalan Sinkhole is an enormous, 30-story-deep hole in the middle of Guatemala City. The sinkhole was formed on May 30, 2010, and is 60 feet wide and 30 stories deep.
The city of Guatemala is no stranger to sinkholes. The city, with more than 16.91 million inhabitants, has been subjected to major sinkholes throughout history. Before the Great Guatemalan Sinkhole, the last time a sinkhole opened up in the middle of the city was in 2007, when a gigantic sinkhole engulfed more than three dozen homes. On May 30, 2010, however, one of the biggest sinkholes on the planet formed right in the heart of Guatemala. Spanning 60 feet wide and 30 stories deep, the sinkhole is believed to be just one of many that is to be formed.
Scientists believe that since the city was built on top of weak materials, so he chances of sinkholes opening up is extremely high. Besides that, the Great Guatemalan Sinkhole is believed to have formed due to broken underground pipes that caused soil to erode away with time. (source)
8. The Milwaukee Depth is the deepest point in the Atlantic Ocean, lying at a depth of 27,493 feet (8,380 m).
Located about 100 miles (160 km) northwest of the island of Puerto Rico, the Milwaukee Depth is the deepest point in the Atlantic Ocean. With a depth of nearly 28,000 feet, it is one of the deepest places on Earth. This deep is named after the USS Milwaukee, a US naval vessel which discovered the deep on February 14th, 1939 and recorded the first ever reading. (source)
9. The Kola Superdeep Borehole is a manmade hole, which is also the deepest hole on Earth.
Although it’s not the widest, the Kola Superdeep Borehole is the deepest manmade hole in the world. The KSB was not created to find oil or to break any records, rather as a challenge between the United States and the Soviet Union. It’s only 23 centimeters (9 inches) wide, but it’s 12,262 meters (40,230 feet) deep. To put things into perspective, it’s 37.8 Eiffel Towers deep or 13,045 large adult skunks stacked head to toe. By studying the hole and Earth’s crust thousands of depths down, scientists were able to uncover many promising geological data. Roughly 4 miles down Earth’s crust, scientists discovered 2-billion-year-old microscopic plankton fossils, completely intact. (source)
10. The Challenger Deep is the deepest place in the world’s oceans. Geologists list the official depth at this time at 10,898 to 10,916 m (35,755 to 35,814 ft).
The Challenger Deep was discovered during an expedition of the British Navy aboard the HMS Challenger as they were surveying areas in the Pacific Ocean from 1872 to 1876. To honor the ship that discovered the slot, it was named after it. In 1960, the first manned descent to the ocean’s deepest point took place, where they descended to 35,838 feet deep with the help of a US Navy submersible Trieste. The trip was however cut to roughly 20 minutes, after the glass of the bathyscaphe cracked due to the immense pressure. Filmmaker, environmentalist, deep-sea explorer, and philanthropist James Cameron has made multiple dives to the bottom. (source)