Question

____ is the process that allows scientists to locate the epicenter of an earthquake by measuring the arrival times between P and S waves. Portland

Answer 1

The process you are referring to is called **triangulation**. Scientists use this method to locate the epicenter of an earthquake by measuring the arrival times of P (primary) waves and S (secondary) waves at multiple seismic stations. By analyzing the differences in arrival times, they can determine the distance to the epicenter from several locations, and then triangulate the position on a map.