For Hobbyists & Makers · Earthquake Shaking
Earthquake Shaking for a watershed
Built for hobbyists & makers exploring it for fun. Play with real physics and math, no license and no setup — just open and tinker. Simulate a watershed live below — adjust the inputs and watch it respond, right in your browser.
Earthquake Magnitude & ShakingLive
energy · attenuation · intensity
Controls
Presets
Magnitude is logarithmic in amplitude but each unit releases about 32× more energy (E ∝ 10^1.5M). Shaking at a site falls off with distance through attenuation. Peak ground acceleration maps to the Modified Mercalli intensity people actually feel — a planning estimate, not a site-specific hazard analysis.
Data Inspector
Energy6.31e+13 J
TNT equivalent15.1 kt
Peak accel.0.3 %g
IntensityIII-IV Light
Governing equation
Reading this result: 30 km out, an M6 quake attenuates to only ~0.3%g — intensity III-IV Light, felt but rarely damaging. Distance and the log falloff tame most of the 6.3e+13 J released.
Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.
More with Earthquake Shaking
Frequently asked questions
- Is this good for hobbyists & makers?
- Yes — this version of "Earthquake Shaking for a watershed" is framed for hobbyists & makers exploring it for fun. Play with real physics and math, no license and no setup — just open and tinker.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.