The distance to an earthquake is found by comparing the arrival time of ____ waves.
A)P and surface
B)S and surface
C)P and shear
D)S and shear
E)P and S

Question

Quizplus · Accepted Answer

The distance to an earthquake is determined by comparing the arrival times of P (primary) and S (secondary) waves. P waves travel faster than S waves, and the time difference between their arrivals can be used to calculate the distance to the earthquake.

The Distance to an Earthquake Is Found by Comparing the Arrival