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sci.seismic-P-wave-velocity-Vp Calculator
Calculates seismic P-wave velocity Vp = √((K + 4/3G)/ρ) and S-wave velocity Vs = √(G/ρ) from elastic moduli and density. Vp/Vs ratio: hard crystalline rock = 1.7; water-saturated soft rock = 2.5; fluid-filled cracked rock > 3 — Vp/Vs is used to map pore fluid content in seismic exploration.
Inputs
K Gpa
Reference formula or conversion factor shown for context.
G Gpa
Reference formula or conversion factor shown for context.
Rho Kgm3
Mass per unit volume (kg/m³). Water: 1,000. Air: 1.225. Steel: 7,850. Affects buoyancy, flow, and structural loads.
Results
P-wave velocity Vp (km/s)
Reference formula or conversion factor shown for context.
S-wave velocity Vs (km/s)
Reference formula or conversion factor shown for context.
Vp/Vs ratio
The proportional relationship between two quantities.
Poisson ratio ν
The proportional relationship between two quantities.
Vp = √((K + 4G/3)/ρ) | Vs = √(G/ρ)
Reference formula or conversion factor shown for context.