-Suppose you were standing on a solid surface when P waves from a nearby earthquake arrived and you could feel them. What ground motion sensation would you feel?
A) The ground would move vertically beneath you, moving you up and down.
B) The ground would move horizontally beneath you, shaking you side to side.
C) The ground would move both vertically and horizontally at the same time.

Question

-Suppose you were standing on a solid surface when P waves from a nearby earthquake arrived and you could feel them. What ground motion sensation would you feel?
A) The ground would move vertically beneath you, moving you up and down. 
B) The ground would move horizontally beneath you, shaking you side to side. 
C) The ground would move both vertically and horizontally at the same time.

Quizplus · Accepted Answer

P waves, or primary waves, are compressional waves that cause the ground to move in a vertical motion, moving you up and down.

-Suppose You Were Standing on a Solid Surface When P