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p wave
p wave
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Số nhiều: p waves
This term is a technical designation used primarily in seismology and geophysics. It describes the fastest of the seismic waves, which can travel through both solid rock and liquid layers of the Earth, such as the outer core. Because of this ability, it is the first signal detected by a seismograph during an earthquake.
In a professional or academic context, it is often contrasted with the s wave (secondary wave), which is slower and cannot travel through liquids. The "p" stands for primary, reflecting its role as the first arrival in a seismic sequence.
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seismologyearthquakeseismographseismometerepicenterhypocenterfocusmagnitudeintensitylithosphereasthenospheremantlecrustcorelongitudinalcompressionrarefactionvelocityamplitudefrequencywavelengthpropagationseismictremorshockvibrationoscillationpressuredensityelasticitymodulusrefractionreflectiondiffractionattenuationphaseperiodenergytectonicsfaultplatesubductionmagmarockgranitebasaltperidotitestratigraphygeologygeophysicssensorsignaltracetriangulationdistancedepthwavefrontmediumfluidsolidgasacousticsonicultrasoundechoresonance