Drain the ocean and the Mariana Trench holds the last water: −10,794 m here.
Water level
0 m
Sea floor showing
0.2%
Deepest point in this map
−10,794 m
Heights stretched
×12
Heights are NOAA's ETOPO 2022 relief model, averaged into 2 arc-minute cells (about 3.7 km).
Grid cells average the bottom, so the deepest spots read shallower than ship surveys.
Real: every height comes from NOAA's ETOPO 2022 map of the sea floor. Simulated: the water, the light and the colours, and the heights are stretched ×12 so you can see them.
Data: NOAA NCEI, ETOPO 2022 15 arc-second relief model, doi:10.25921/fd45-gt74.
Details
Built by Gemini 4 Hydrogen from one prompt: Three.js 3D terrain mesh from NOAA ETOPO 2022 grid data, bathymetric vertex colouring, translucent draining sea surface with depth-based underwater tinting, live vertical exaggeration slider, hover/tap cell elevation readout, three data-point callouts with leader lines, four animated camera presets with orbit and pinch/wheel zoom, Web Audio procedural rumble and depth bells, and a 25-second guided tour.