Question

multiple-choice question

1. how are scientists able to identify the epicenter of the earthquake?

a. the product of multiplying the arrival times of p wave and s wave at different locations
b. the difference of arrival time of s wave and p wave at different locations
rewatch

Explanation:

To identify the epicenter of an earthquake, scientists use the difference in arrival times of S - waves and P - waves at different seismic stations. P - waves (primary waves) travel faster than S - waves (secondary waves). By calculating the time difference between the arrival of S - waves and P - waves at various locations, they can determine the distance from each station to the epicenter. Then, using the method of triangulation with data from at least three stations, they can pinpoint the epicenter. Option a is incorrect because multiplying the arrival times of P - waves and S - waves is not a method used to find the epicenter.

Answer:

b. the difference of arrival time of s wave and p wave at different locations