For Students · Tsunami Propagation
Tsunami Propagation for a river flood
Built for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition. Simulate a river flood live below — adjust the inputs and watch it respond, right in your browser.
Tsunami PropagationLive
shallow-water waves · shoaling
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A tsunami is a shallow-water wave even in the deep ocean, travelling at √(g·h). Over 4 km of water that is roughly 700 km/h — jet speed — yet only tens of centimeters high. As it reaches shallow coast it slows and its amplitude grows as h^(−1/4) (Green's law), piling into a destructive wall.
Data Inspector
Current speed0 km/h
Deep amplitude0.5 m
Coastal amplitude0.0 m
Governing equation
Reading this result: At 4000 m depth the pulse moves at ~713 km/h; Green law shoaling then amplifies its 0.5 m deep-water height as it nears the coast.
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- Is this good for students?
- Yes — this version of "Tsunami Propagation for a river flood" is framed for students learning it for a class or exam. See the concept move instead of memorizing formulas — and check your homework intuition.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.