seismic waves
Earthquake energy pulses
Seismic waves are vibrations that travel through the Earth, typically generated by earthquakes, volcanic eruptions, or explosions.
They move through rock and soil at varying speeds depending on the material's density.
Scientists use seismic waves to study the Earth's interior structure and to locate earthquake epicenters.
The seismic waves from the earthquake were felt hundreds of miles away.
Involuntary rhythmic shaking
- aftershockSmaller quake following larger
- epicenterPoint above seismic origin
- magnitudeSize or scale
- faultImperfection or blame
rupture · quake · destruction · collapse · Richter · disaster · evacuation · casualties
Longitudinal seismic vibrations
- S-wavesSecondary seismic vibrations
- amplitudeMaximum oscillation displacement
- frequencyRate of recurrence
- velocityDirected rate of motion
propagation · reflection · refraction · diffraction · attenuation · dispersion · waveform · oscillation
Study of crustal deformation
- lithosphereCrust plus upper mantle
- mantleCovering or wrap
- crustHard outer layer
- subductionPlate descending beneath another
fault · rift · plate boundaries · earth's interior · geophysics · seismometer · asthenosphere · core
Sudden powerful increase
- run-upPreliminary acceleration phase
- inundationOverwhelming surge of water
- warning systemDetection and notification apparatus
- coastal floodingSeawater overtaking shore areas
retreat · evacuation · alert · siren · propagation · coastline · aftermath · Pacific Ring of Fire
tremor
Involuntary rhythmic shaking
- aftershockSmaller quake following larger
- epicenterPoint above seismic origin
- magnitudeSize or scale
fault · rupture · quake · destruction · collapse · Richter · disaster · evacuation · casualties · survivors
P-waves
Longitudinal seismic vibrations
- S-wavesSecondary seismic vibrations
- amplitudeMaximum oscillation displacement
- frequencyRate of recurrence
velocity · propagation · reflection · refraction · diffraction · attenuation · dispersion · waveform · oscillation · interference
tectonics
Study of crustal deformation
- lithosphereCrust plus upper mantle
- mantleCovering or wrap
- crustHard outer layer
subduction · fault · rift · plate boundaries · earth's interior · geophysics · seismometer · asthenosphere · core · shadow zone
surge
Sudden powerful increase
- run-upPreliminary acceleration phase
- inundationOverwhelming surge of water
- warning systemDetection and notification apparatus
coastal flooding · retreat · evacuation · alert · siren · propagation · coastline · aftermath · Pacific Ring of Fire
- earth scienceatmosphere, earthquake, geology, volcano, crust
- earthquakesearthquake, quake, earthquakes, quakes, epicenter
- seismologyearthquake, earthquakes, seismicity, seismometer, epicenter
- earthquake effectsearthquake, aftershock, aftershocks, tremor, tremors
- meteor impactscraters, impact crater, impact craters, crater, meteorite
- geophysicsearthquake, earthquakes, epicenter, faults, fault lines
seismic waveselectromagnetic waves
Self-propagating field oscillations
light waves · radio waves · sound waves · ocean waves · gravitational waves
wave, seismic, seismograph, seismology, seismologist, seismographs, seismic wave