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🌋 Lahar: Volcanic Mudflow

Interactive 3D volcano slope where triggering a simulated lahar, a water-saturated volcanic debris flow, down a valley shows its speed and destructive path changing with slope and water content.

Geology & Earth Science3DModerate60 FPS💧 Water 🌍 Earth

Trigger a water-saturated debris flow from a volcano's crater and watch it surge down a valley, carving a destructive path whose speed, character, and reach depend on the slope's steepness and the flow's water content.

🔬 What It Demonstrates

Steeper slopes accelerate the flow through gravity, while water content shifts it between a slow, boulder-choked debris flow and a fast, diluted flood — the same trade-off that shapes real lahar hazard zones.

🎮 How to Use

Set the slope angle, water content and debris supply, then press Trigger lahar. Watch the flow speed, hazard index and runout distance update live as the mud scar spreads down the valley floor.

💡 Did You Know?

The 1985 Nevado del Ruiz lahar in Colombia travelled over 60 km from the summit and destroyed the town of Armero within minutes, despite the eruption itself being relatively small.

⚙ Under the hood

Interactive 3D volcano slope where triggering a simulated lahar, a water-saturated volcanic debris flow, down a valley shows its speed and destructive path changing with slope and water content.

laharvolcanic-mudflowvolcanic-hazardsvolcanologydebris-flowsgeology

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install