Where is Mariana Trench?
Mariana Trench is in Western Pacific Ocean.
Direct answers about Mariana Trench
Why is Mariana Trench interesting?
The trench formed where one tectonic plate moves beneath another.
Three facts to remember
- The trench formed where one tectonic plate moves beneath another.
- Challenger Deep is its deepest known point.
- Its name is connected with the nearby Mariana Islands.
Place-specific reference: https://oceanexplorer.noaa.gov/explainers/mapping/
Sources and review
Facts were last reviewed on 13 September 2026. Boundaries and state/province names use Natural Earth. Country reference fields use the Countries dataset. India boundary presentation follows the project’s stated Survey of India reference.