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| | Abstract | | Passive seismic imaging is achieved by applying an imaging condition directly to passive seismic data based on the concept of seismic interferometry without source information. In this study, we employed an elastic reverse-time migration and imaging conditions with scalar and vector potentials of elastic wavefield to obtain both P- and S-wave reflection images from multi-component surface seismic data. Imaging results of synthetic seismic wave data calculated using simple 2-D models shows severe contamination by unwanted artifacts that degrade seismic images. Study shows the interference of forward-progated and backward-propagated P- and S-waves are responsible to these unwanted artifacts. These artifacts may not be successfully dissipated from the final image by stacking multiple images. Therefore, they may cause severe problems on passive seismic imaging. |
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