What is the listed maximum depth of Molloy Deep?

The listed maximum depth of Molloy Deep is 5,550 metres. This bathymetric feature, also called the Molloy Hole, lies in the Fram Strait between Greenland and Svalbard and contains the deepest point of the Arctic Ocean.

The figure comes from direct measurements made during the Five Deeps Expedition. Victor Vescovo's 24 August 2019 descent established the depth at 5,550 metres, with a reported uncertainty of plus or minus 14 metres from direct CTD pressure measurements. Earlier estimates based on less precise bathymetric techniques differed, which explains why older references may give a slightly different number.

Molloy Deep should not be confused with the world's deepest ocean locations. The Mariana Trench reaches roughly 11,000 metres, while the Tonga Trench and Puerto Rico Trench are also substantially deeper. Molloy Deep is nevertheless the Arctic's deepest point, and its basin floor covers about 220 square kilometres inside a broader feature of roughly 600 square kilometres.