Limits RegistryPUBLIC RECORD
Limits RegistryThe Challenger Deep reaches approximately 10,935 m below mean sea level in the Mariana Trench.
The question, scope, and sources behind this Registry record.
The Challenger Deep reaches approximately 10,935 m below mean sea level in the Mariana Trench.
Track the deepest directly measured seafloor point relative to mean sea level using calibrated bathymetric observations.
Depth estimates depend on acoustic sound-speed corrections, reference sea level, instrument calibration, and the exact point surveyed. The registry value is a measured geophysical frontier, not a permanent invariant.
National Centers for Environmental Information — Deepest measured ocean pointChange a parameter to stress-test whether a proposed result is still inside the published specification. This is an audit aid, not a proof checker.
Current frontiers derived from accepted Claims.
An observed or demonstrated result; no opposing bound is implied.
The frontier is not sacred
Most progress starts with a disagreement that survives contact with evidence. If you can push the known lower bound up or pull the upper bound down, show us the work.
≥ when you have shown that at least this value is achievable.≤ when you have shown that anything above this value is impossible.No vibes. State the value, define the scope, and link the paper, proof, code, or reproduction that lets another person check it. Editors review every challenge before the public record changes.
Challenge this recordAssertions tied to evidence, attribution, and review.
The frontier as it changed over time.
Only accepted Claims matching the current specification contribute to the displayed bounds. Strict inequalities remain open; contradictory Claims require editorial review.
Permanent ID limitsregistry.com/limits/LR-004212
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Limits Registry. LR-004212. Deepest measured ocean point. 2026.