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  • What is an P wave?

    Questioner:Sophia Moore 2018-04-06 09:54:41
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  • Zoe Clark——Studied at the University of Tokyo, Lives in Tokyo, Japan.

    As a seismologist with extensive experience in the study of seismic waves, I can provide a detailed explanation of a P wave. A P wave, also known as a primary wave, is a type of seismic wave that results from the movement of the Earth's crust during an earthquake. It is characterized by its longitudinal motion, meaning that the direction of the wave's movement is parallel to the direction in which the wave is traveling. This is in contrast to transverse waves, which move perpendicular to the direction of wave propagation. P waves are the fastest type of seismic wave and are typically the first to be detected by a seismograph at a distance from the earthquake's epicenter. read more >>
  • Benjamin Evans——Works at the World Health Organization, Lives in Geneva, Switzerland.

    a longitudinal earthquake wave that travels through the interior of the earth and is usually the first conspicuous wave to be recorded by a seismograph. Expand. Also called primary wave. Compare L wave, S wave. Origin of P wave.read more >>

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