Science, Discovery, Tech and Environment · 24 March 2026
Japan retrieves rare earth-rich sediment from 6,000 m below Pacific near Minamitorishima
Exam-focused facts from the 24 March 2026 current affairs briefing.
Key facts
- Japan recovered rare earth-rich sediment from nearly 6,000 m below the Pacific Ocean near Minamitorishima island south of Tokyo using the deep-sea research vessel Chikyu.
- Surveys in the 2010s indicated the area could hold more than 16 million tonnes of rare earth resources.
- The collected samples are undergoing analysis to determine exact concentration and composition of rare earth elements.
- Japan relies heavily on imports for rare earth elements and views the deep-sea project as part of its strategy to diversify supply sources and strengthen economic security.