// multi-utility computation suite · offline · instant · precise
┌──────────────────────────┐
│ [c] calcalyst_ │
│ computation suite │
└──────────────────────────┘
// select a module to initialize
/ search↵ open firstesc close
// adsenseEMPTY_LEADER_SLOT728×90
// keyboard shortcuts
/focus search
Escclear search · close calc
Enteropen first result
↑↓navigate list
?toggle this panel
// adsenseMOBILE_ANCHOR_SLOT320×50
// keyboard_shortcuts
/focus search
↑↓navigate module list
Enter
open first result from search
open highlighted
compute when module is open
compute when focused in a field
Escclose module · clear selection
⌫
sci.seismic-attenuation-Q Calculator
Calculates seismic quality factor Q from peak frequency shift or amplitude decay over distance, measuring anelastic attenuation. Q = 1,000 in crystalline basement rock; Q = 30–100 in soft sediments — low Q zones amplify seismic waves through scattering and absorb high frequencies, enriching near-surface records in low frequencies.
Inputs
Q Factor
A multiplier applied in the calculation.
F Hz
Cycles per second (Hz). Audible sound: 20 Hz – 20 kHz. Make sure units match what the formula expects.
V Km S
Speed in a specified direction (m/s). Required for momentum, kinetic energy, and wave calculations.
Distance Km
Separation between two points or total path length. Check that units are consistent throughout the calculation.
Results
amplitude attenuation factor
A dimensionless multiplier applied in the calculation.
attenuation in dB
The value at the specified point or condition.
seismic skin depth (km)
The computed depth.
A = A₀·exp(−πf·r / Q·v)
Reference formula or conversion factor shown for context.
Q interpretation
Qualitative summary of what the computed numbers mean in practical terms.