Seismic Exploration
Seismic Exploration
Seismic Exploration is a geophysical method used to investigate subsurface structures and material properties by observing and analyzing the propagation, reflection, and scattering of elastic waves that travel through the Earth. In addition to imaging subsurface geometry and heterogeneity, it enables quantitative estimation of mechanical parameters such as seismic wave velocities. Seismic Exploration is widely applied across disciplines with different target scales and objectives, including civil engineering and disaster mitigation, resource exploration, and seismology.
Our Research Focus
Our research covers a wide range of seismic methods based on reflected waves, refracted waves, and surface waves. In addition to active seismic approaches using controlled sources, we develop and apply passive exploration techniques that utilize ambient noise (microtremors). Our work also includes advanced acquisition and analysis technologies, such as distributed acoustic sensing (DAS) using optical fibers and waveform inversion methods that directly estimate subsurface properties from observed seismic data. Through these approaches, we aim to achieve higher-resolution and more realistic subsurface characterization under real-world conditions.