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!

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