If three seismic stations have the following P-S intervals: DUG = 57 sec, WUAZ = 73 sec, ISCO = 14 sec, what is the order from closest station to the earthquake to the one farthest away?

Question

Quizplus · Accepted Answer

The P-S interval (the time between the arrival of the P-wave and the S-wave at a seismic station) is directly related to the distance from the earthquake. A shorter P-S interval means the station is closer to the earthquake. Therefore, the order from closest to farthest is ISCO (14 sec), DUG (57 sec), WUAZ (73 sec).

If Three Seismic Stations Have the Following P-S Intervals: DUG