Stoneley Interface Necessary-Condition Checker
Check the necessary solid-solid shear-support condition for a Stoneley interface wave. Positive shear speeds on both sides are necessary but not sufficient; density and compressional-wave speed are also needed for a full existence test.
Description
Check the necessary solid-solid shear-support condition for a Stoneley interface wave. Positive shear speeds on both sides are necessary but not sufficient; density and compressional-wave speed are also needed for a full existence test.
Stoneley Interface Necessary-Condition Checker is a focused tool for the following task. Check the necessary solid-solid shear-support condition for a Stoneley interface wave. Positive shear speeds on both sides are necessary but not sufficient; density and compressional-wave speed are also needed for a full existence test. It reports Condition met, Note from the values you provide rather than inventing measurements, coefficients, or professional judgment that are not part of the input.
When to use Stoneley Interface Necessary-Condition Checker
Use this seismology calculation to reproduce a stated convention, screen observations, or compare scenarios whose units, coordinate conventions, catalog selection, and model assumptions are known.
- β₁ (km/s)
- Required number in km/s. Shear velocity of the upper medium.
- β₂ (km/s)
- Required number in km/s. Shear velocity of the lower medium.
The cited overview of Seismic wave supplies background for the terminology and domain context used by this tool.1
How Stoneley Interface Necessary-Condition Checker works
Check the necessary solid-solid shear-support condition for a Stoneley interface wave. Positive shear speeds on both sides are necessary but not sufficient; density and compressional-wave speed are also needed for a full existence test. Inputs are interpreted exactly in the displayed units and the calculation returns the following fields without presentation rounding.
- Condition met
- Returned boolean. Whether the necessary two-solid shear-support condition is met.
- Note
- Returned string. Explanation.
Limitations and assumptions
- Earth structure, source geometry, path effects, site response, instrument response, catalog completeness, uncertainty, and the fitted range can dominate the accuracy of simplified seismic calculations.
- β₁ must be at least 0.
- β₂ must be at least 0.
- Use finite inputs in the displayed units, preserve source measurements and assumptions, and independently verify consequential decisions.
Alternative or Complementary approaches
For analysis or hazard decisions, retain uncertainty and provenance and compare the result with waveform processing, calibrated regional models, and guidance from qualified seismologists or the responsible agency.
References
-
Seismic wave — Wikipedia contributors
Similar or alternative tools
- Air Coupled Rayleigh Wave Speed Calculator
Rayleigh wave speed from shear velocity (≈0.92·β for ν = 0.25) compared with the speed of sound in air.
- Basin Edge Surface Waves Checker
Screen whether the bedrock-to-basin shear-wave velocity contrast reaches an illustrative 2:1 threshold associated with stronger basin-edge effects; geometry is not modeled.
- Love Wave Dispersion Period Speed Lookup
Illustrative fundamental-mode Love-wave phase-speed bands for a generic continental crust. Real dispersion must be calculated from a site-specific velocity model.