Question

Scientists can calculate the distance from the seismograph station to the focus using
a. the difference in arrival times of P and surface waves.
b. the difference in arrival times of P and S waves.
c. the difference in arrival times of S and surface waves.
d. None of the above.

Answer 1

Scientists can calculate the distance from the seismograph station to the focus using b. the difference in arrival times of P and S waves.