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Wadati Diagram S-P Travel Time & Hypocentral Distance Calculator

Easily calculate and compute wadati diagram s-p travel time & hypocentral distance calculator with accurate equations, live formulas, and expert guidance.

Observed time difference between first S-wave and first P-wave arrivals.

Average regional compressional wave speed.

Standard Poisson solid ratio (sqrt(3) ~= 1.732 for nu = 0.25).

Calculated Result
119.2 km

Hypocentral Distance (D)

Hypocentral Distance (D)

119.2 km

Hypocentral Distance Km

119.2

S Wave Velocity Vs Km S

3.47

P Wave Travel Time Seconds

19.9

Omori Rule Constant Km S

8.2

119.2 — km

Calculation Breakdown

  1. Applied FormulaUses the Wadati diagram relation and Omori constant to calculate the hypocentral distance to an earthquake source from the differential travel time between P and S waves.D = \frac{\Delta t}{\frac{1}{V_s} - \frac{1}{V_p}}, \quad t_p - t_0 = \frac{t_s - t_p}{\frac{V_p}{V_s} - 1}

Wadati S-P Distance Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.0306089119Hypocentral Distance (D)

What Is the Wadati Diagram S-P Travel Time & Hypocentral Distance Calculator?

This tool computes wadati diagram s-p travel time & hypocentral distance calculator with high precision arithmetic.

How Does the Wadati Diagram S-P Travel Time & Hypocentral Distance Calculator Work?

Uses the Wadati diagram relation and Omori constant to calculate the hypocentral distance to an earthquake source from the differential travel time between P and S waves.

Wadati Diagram S-P Travel Time & Hypocentral Distance Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

D=Δt1Vs−1Vp,tp−t0=ts−tpVpVs−1D = \frac{\Delta t}{\frac{1}{V_s} - \frac{1}{V_p}}, \quad t_p - t_0 = \frac{t_s - t_p}{\frac{V_p}{V_s} - 1}

Uses the Wadati diagram relation and Omori constant to calculate the hypocentral distance to an earthquake source from the differential travel time between P and S waves.

How to Use the Wadati Diagram S-P Travel Time & Hypocentral Distance Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Wadati Diagram S-P Travel Time & Hypocentral Distance Calculator Example

Input Values:

spArrivalLagTimeDeltaTSec:14.5
pWaveVelocityVpKmS:6.0
vpVsVelocityRatio:1.73
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required km.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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