A tsunami isn't a tall wave that breaks and retreats — it's the sea itself rising and pushing inland, following the low ground until the land climbs above it. Set the wave height at the coast and the map floods every acre connected to the ocean that sits below that line, from a 90-meter national elevation model. Click anywhere to see if the water reaches it and how deep it gets.
On the coast, knowing how far the water climbs — and where the high ground is — is the difference between minutes well spent and minutes lost.
Set the wave height and see how far inland it climbs.
A tsunami isn’t a tall wave that breaks and retreats — it’s the sea itself rising and pushing inland until the land climbs above it.
The water follows the low ground on a 90 m elevation model. It doesn’t model wave run-up dynamics, bays that amplify, or currents — real inundation can reach higher in a funneling inlet. Use it to understand your terrain, then follow local evacuation routes.
