The Seabed 2030 project announced on Saturday that “27.3% of the world’s ocean floor has now been mapped to modern standards. The increase in data represents more than four million square kilometres of newly mapped seafloor—an area roughly equivalent to the entire Indian subcontinent.” The above map shows the progress to date, with new bathymetric data added over the past year indicated in red. Data compiled by this project is freely available via GEBCO’s global grid.

Previously: Mapping the Ocean Floor by 2030; ‘Cartographically Speaking, Water Sucks’.