Respuesta :
Answer:
the answer is belowww
Step-by-step explanation:
To locate the epicenter of an earthquake, scientists must have seismograms from at least three seismic stations. The procedure for locating an epicenter has three steps: Scientists find the difference between the arrival times of the primary and the secondary waves at each of the three stations.
Answer:
3
Step-by-step explanation:
You need seismograph reading from 3 different seismic stations to locate an earthquakes epicenter. Hope this helps!