Seismic Lag Time Calculator
Determine epicentral distance using precise P and S wave arrivals.
Input Parameters
The distance to the epicenter (D) is calculated using the arrival time difference between S and P waves (lag time).
D = (Ts - Tp) / ((1/Vs) - (1/Vp))
Ensure Vp > Vs for valid results.
Estimated Distance
0.00
km
Lag Time (S-P)
0.00 s
Calculation Status
Stable