Question

question 18 not yet answered points out of 5 flag question the difference in arrival time between the p and the s waves is used to determine: select one: a. the magnitude of the quake b. the distance to the focus of the quake c. the arrival time of the next aftershock d. the mercalli scale of the quake

Explanation:

The difference in arrival times of P - and S - waves (seismic waves) is used in seismology to calculate the distance from the seismic station to the focus of the earthquake. This is because P - waves (primary waves) travel faster than S - waves (secondary waves), and the time lag between their arrivals at a given location can be related to the distance to the earthquake's origin.

Answer:

B. the distance to the focus of the quake