Articles | Volume 10, issue 3
https://doi.org/10.5194/se-10-765-2019
https://doi.org/10.5194/se-10-765-2019
Research article
 | 
05 Jun 2019
Research article |  | 05 Jun 2019

Crustal-scale depth imaging via joint full-waveform inversion of ocean-bottom seismometer data and pre-stack depth migration of multichannel seismic data: a case study from the eastern Nankai Trough

Andrzej Górszczyk, Stéphane Operto, Laure Schenini, and Yasuhiro Yamada

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Cited articles

Agudelo, W., Ribodetti, A., Collot, J.-Y., and Operto, S.: Joint inversion of multichannel seismic reflection and wide-angle seismic data: Improved imaging and refined velocity model of the crustal structure of the north Ecuador–south Colombia convergent margin, J. Geophys. Res.-Sol. Ea., 114, B02306, https://doi.org/10.1029/2008JB005691, 2009. a
Ando, M.: Possibility of a major earthquake in the Tokai district, Japan and its pre-estimated seismotectonic effects, Tectonophysics, 25, 69–85, 1975. a, b
Audebert, F., Diet, J. P., Guillaume, P., Jones, I., and Zhang, X.: CRP Scan: 3-D preSDM velocity analysis via zero offset tomographic inversion, in: Expanded Abstracts, 1805–1808, Soc. Expl. Geophys., 1997. a
Bangs, N., Moore, G., Gulick, S., Pangborn, E., Tobin, H., Kuramoto, S., and Taira, A.: Broad, weak regions of the Nankai Megathrust and implications for shallow coseismic slip, Earth Planet. Sc. Lett., 284, 44–49, https://doi.org/10.1016/j.epsl.2009.04.026, 2009. a
Baysal, E., Kosloff, D., and Sherwood, J.: Reverse time migration, Geophysics, 48, 1514–1524, 1983. a
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Short summary
In order to broaden our knowledge about the deep lithosphere using seismic methods, we develop leading-edge imaging workflows integrating different types of data. Here we exploit the complementary information carried by seismic wavefields, which are fundamentally different in terms of acquisition setting. We cast this information into our processing workflow and build a detailed model of the subduction zone, which is subject to further geological interpretation.