Izu–Ogasawara Trench

[1] It stretches from Japan to the northernmost section of Mariana Trench.

[3] It is 9,826 metres (32,238 ft) +/- 11m at its deepest point and first dived to its base on August 13, 2022, during a joint Caladan Oceanic/University of Western Australia expedition in the Deep Submergence Vehicle Limiting Factor.

[4] Also in August 2022, the deepest fish ever recorded on camera was filmed in the trench, a juvenile snailfish, at a depth of 8,336 meters.

[5] The xenophyophore Occultammina was first discovered at a depth of 8260 metres in the trench.

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