To Locate the Epicenter of an Earthquake, a Seismologist Must

Multiple Choice

To locate the epicenter of an earthquake, a seismologist must determine all of the following EXCEPT:

A) the distance from the epicenter to at least three different seismological stations.
B) the difference in travel times between P waves and S waves.
C) the velocity of both P waves and S waves.
D) the depth of the earthquake and the type of fault from which it originated.