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1. • Indian Ocean Geoid Low

     • This gravity hole, the world’s largest (and deepest) gravitational anomaly, is officially known as the Indian Ocean Geoid Low (IOGL).
     www.atlasobscura.com/articles/gravity-hole-indian-ocean

     The Mystery of the World’s Largest and Deepest Gravity Hole

2. People also ask

   Where is the Great Blue Hole?

   • The Great Blue Hole is a large marine sinkhole off the coast of Belize. It lies near the center of Lighthouse Reef, a small atoll 70 km (43 mi) from the mainland and Belize City. The hole is circular in shape, 318 m (1,043 ft) across and 124 m (407 ft) deep. It has a surface area of 70,650 square metres (760,500 sq ft).

   Great Blue Hole - Wikipedia

   en.wikipedia.org/wiki/Great_Blue_Hole

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   Where did the holes in the ocean come from?

   • The ultimate origin of the holes still remains a mystery and indeed the unknowns we encounter are often as deep and mysterious as the ocean itself. With each expedition to map and explore ocean depths, however, we learn more about this ecosystem that is so vital to all of our lives.

   The Case of the Mysterious Holes on the Seafloor - NOAA Ocean Explor…

   oceanexplorer.noaa.gov/news/oer-updates/2022/mysterious-holes-seafloor/mysterious-holes-seafloor.html

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   How deep is a hole in the seafloor?

   • During Dive 04 of the second Voyage to the Ridge 2022 expedition, we observed several sublinear sets of holes in the sediment on the seafloor at a depth of approximately 2,540 meters (1.6 miles). We saw the holes again during Dive 09 a total of four times at depths ranging from approximately 1,440 to 1,500 meters (4,724 to 4,921 feet).

   The Case of the Mysterious Holes on the Seafloor - NOAA Ocean Explor…

   oceanexplorer.noaa.gov/news/oer-updates/2022/mysterious-holes-seafloor/mysterious-holes-seafloor.html

   See all results for this question

   Are there holes in the sediment beneath the seafloor?

   • It was also not apparent as to whether the holes were connected beneath the sediment surface. During Dive 04 of the second Voyage to the Ridge 2022 expedition, we observed several sublinear sets of holes in the sediment on the seafloor at a depth of approximately 2,540 meters (1.6 miles).

   The Case of the Mysterious Holes on the Seafloor - NOAA Ocean Explor…

   oceanexplorer.noaa.gov/news/oer-updates/2022/mysterious-holes-seafloor/mysterious-holes-seafloor.html

   See all results for this question

   Is there a hole in Big Sur's sand?

   • The study was published in the Journal of Geophysical Research Earth Surface. Off the coast of Big Sur, California, deep beneath the waves, lies a mysterious landscape dotted by large holes in the clay, silt, and sand.

   Mysterious Holes on The Ocean Floor Have a New Explanation

   www.sciencealert.com/mysterious-holes-on-the-ocean-floor-have-a-new-explanation

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   How deep is the Great Blue Hole?

   • The initial measured depth of the Great Blue Hole was about 125 m (410 ft) which is the most often cited depth up to this day. An expedition was conducted in the summer of 1997 to collect core samples from the Blue Hole's floor and document the cave system.

   Great Blue Hole - Wikipedia

   en.wikipedia.org/wiki/Great_Blue_Hole

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3. www.sciencealert.com › mysterious-holes-on-theMysterious Holes on The Ocean Floor Have a New Explanation

   www.sciencealert.com › mysterious-holes-on-the

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   May 21, 2024 · Off the coast of Big Sur, California, deep beneath the waves, lies a mysterious landscape dotted by large holes in the clay, silt, and sand. Decades after its discovery, scientists at the Monterey Bay Aquarium Research Institute (MBARI) and Stanford University think they have figured out what is forming the field's curious pattern of circles.

4. oceanexplorer.noaa.gov › news › oer-updatesThe Case of the Mysterious Holes on the Seafloor

   oceanexplorer.noaa.gov › news › oer-updates

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   Jul 27, 2022 · The Case of the Mysterious Holes on the Seafloor. During Dive 04 of the second Voyage to the Ridge 2022 expedition, we observed several sublinear sets of holes in the sediment on the seafloor at a depth of approximately 2,540 meters (1.6 miles).

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6. www.livescience.com › planet-earth › geologyDeepest blue hole in the world discovered, with hidden caves ...

   www.livescience.com › planet-earth › geology

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   Apr 29, 2024 · Mexico's Taam Ja' Blue Hole is the deepest known underwater sinkhole in the world, researchers have discovered — and they haven't even reached the bottom yet. New measurements indicate the...

7. en.wikipedia.org › wiki › Great_Blue_HoleGreat Blue Hole - Wikipedia

   en.wikipedia.org › wiki › Great_Blue_Hole

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   The Great Blue Hole is a large marine sinkhole off the coast of Belize. It lies near the center of Lighthouse Reef , a small atoll 70 km (43 mi) from the mainland and Belize City . The hole is circular in shape, 318 m (1,043 ft) across and 124 m (407 ft) deep.

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     In the heart of the sea - Whale attack

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     In the Heart of the Sea (2015) - Burning & Sinking Scene (7/10) | Movieclips

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9. www.bbc.com › reel › videoChina's huge and mysterious Xiaozhai Tiankeng sinkhole - BBC

   www.bbc.com › reel › video

   Deep in China's Fengjie County lies a natural wonder that has fascinated experts for decades. The Xiaozhai Tiankeng sinkhole is vast. Probably formed centuries ago by collapsing caves and...

   • Video Duration: 5 min

10. www.sciencealert.com › mystery-of-strange-holes-atMystery of Strange Holes at The Bottom of The Ocean Finally ...

    www.sciencealert.com › mystery-of-strange-holes-at

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    Jan 13, 2024 · The mystery of strange pockmarks that dimple the floor of the North Sea has finally been solved. These mysterious depressions are not always, as had previously been thought, the result of methane seeping from beneath the seafloor sediment ; rather, they're sometimes the mess left behind by porpoises ( Phocoena phocoena ) and sand eels ...

11. www.bbc.co.uk › newsround › 59164705The mystery behind Google Maps' 'black hole' in the Pacific ...

    www.bbc.co.uk › newsround › 59164705

    Nov 5, 2021 · The mystery behind a strange 'black hole' found in the middle of the Pacific Ocean on Google Maps has finally been solved! Find out more here.