seismic wave
Technical term used in seismology and earth science; refers to waves of energy that travel through the Earth, such as P-waves and S-waves.
Seismic waves include P-waves and S-waves.
地震波の伝わる速さは地層によって異なる。
The speed at which seismic waves travel varies depending on the geological strata.
seismic tomography
Compound of 地震 (jishin, 'earthquake') and 波 (ha, 'wave').