Answer :
Based on the epicenter and the time of the arrival of the first S-wave, the first P-wave will arrive at 1:22 pm.
From the information given, it was stated that the epicenter of an earthquake is located 6,500 kilometers away from a seismic station and that the first S-wave arrived at this seismic station at 1:30 p.m.
Therefore, it should be noted that the first P-wave will have arrived 8 minutes earlier. This will be:
= 1:30 pm - 8 minutes
= 1:22 pm.
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