If an earthquake occurred 2000 km away from a seismic station, how long after the earthquake would the station detect the P-wave arrival?

Name: If an earthquake occurred 2000 km away from a seismic station, how long after the earthquake would the station detect the P-wave arrival?
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Question

Quizplus · Accepted Answer

P-waves travel at an average speed of about 5000 meters per second (or 5 km/s). At this speed, it would take approximately 400 seconds (or 4 minutes) for the P-wave to travel 2000 km.

If an Earthquake Occurred 2000 Km Away from a Seismic