earth-sciences

Volcanology & Magma Dynamics

The study of volcanic processes — magma viscosity, eruption column dynamics, lava flow mechanics, volcanic explosivity indices, and pyroclastic density currents.

volcanologymagmaeruptionlava flowpyroclastic flowvolcanic explosivitygeology

Volcanology investigates the physical and chemical processes that drive volcanic eruptions, from the deep-mantle generation of magma to its explosive or effusive surface expression. Understanding magma rheology, gas exsolution, and conduit dynamics allows scientists to forecast eruptions and assess hazards for millions of people living near active volcanoes.

These simulations let you explore magma viscosity across compositions, model eruption column heights, trace lava flow paths, calculate volcanic explosivity indices, and visualize pyroclastic density currents — all grounded in the fluid mechanics and thermodynamics of real volcanic systems.

5 interactive simulations

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Eruption Column & Plume Height

Model volcanic eruption columns — explore how mass discharge rate, vent radius, exit velocity, and atmospheric conditions control plume height and umbrella cloud spread

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Lava Flow Advance & Cooling

Simulate lava flow advance down a slope — model flow velocity, cooling rate, crust formation, and maximum runout distance as functions of effusion rate, viscosity, slope angle, and ambient conditions

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Magma Viscosity & Rheology

Simulate magma viscosity as a function of temperature, silica content, water content, and crystal fraction — visualize flow behavior from basaltic to rhyolitic compositions

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Pyroclastic Density Currents

Simulate pyroclastic density currents — model flow velocity, runout distance, dynamic pressure, and temperature as functions of collapse height, particle concentration, slope, and entrainment

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Volcanic Explosivity Index (VEI)

Calculate the Volcanic Explosivity Index from eruption volume, column height, duration, and mass discharge rate — compare with historical eruptions from Stromboli to Yellowstone