One measurement that is widely used to determine how far the focus of an earthquake is from the seismograph where it is recorded is _______.

Question

Quizplus · Accepted Answer

The difference in travel time between the P and S waves is used to determine the distance between the focus of an earthquake and the seismograph where it is recorded. This is because P waves travel faster than S waves and therefore arrive at the seismograph first. By calculating the time difference between the arrival of the P and S waves, the distance from the seismograph to the earthquake’s focus can be determined.

One Measurement That Is Widely Used to Determine How Far