seismic data
Seismic data is comprised of sound (seismic) wave recordings of Earth's subsurface that are obtained in seismic surveys. Seismic waves are generated by specialized equipment that reflects off subsurface rock layers which are then are captured by recording equipment. The data are processed and interpreted to provide a "picture" of the subsurface geology in either 2D (single slice) or 3D (volume) formats, depending on the survey design.

