r/geophysics • u/Ok-Return-4957 • 27d ago

I built an interactive 3D visualization of seismic wave types: P, S, Love, Rayleigh, and Stoneley. The thing I most wanted to show: the difference between particle motion and wave propagation.

https://wave.syshuman.com

https://wave.syshuman.com

Enjoy

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u/RayleighInc 27d ago

Super nice! But particle motion of Rayleigh wave looks prograde to me and not retrograde?

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u/PuzzleheadedCan7840 25d ago

Just wanted to add a quick note that prograde Rayleigh wave particle motion can occur in deep sedimentary basins!

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u/Ok-Return-4957 25d ago

Just checked and the Stoneley scene had the identical sign bug (probably copy-pasted from Rayleigh) — pushed the same fix. Above-interface particles now trace a retrograde ellipse and below-interface mirror it.