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Abstract

Summary

We focus on seismically scattered waves that bring the information of the earth crust where the seismic waves travel through to estimate stress field in the subsurface. Since seismic scattering is strongly related to the crustal inhomogeneities such as faults, cracks, etc., which are also created by the stress in the crust, we could be able to estimate stress field in the deep subsurface using the seismic scattering.

We employ coda-Q (Qc) as a parameter to detect the variation of stress field. Qc is a parameter reflecting the inhomogeneities.

Here we hypothesize that Qc could be used to estimate regional-scale stress accumulation in the crust without local and shallow disturbances since Qc is estimated from the scattered seismic waves travelling over a wide range of the crust. We first obtain a relationship between Qc and the stress change using numerical simulations. We calculate the static stress changes associated with the Iwate-Miyagi Nairiku earthquake in 2008 (Mw 6.9) in the subsurface using earthquake dislocation model and the surface deformation for comparison. As the result, it is found that the stress change inferred from Qc shows the similarity of stress change in the deep subsurface calculated by the earthquake dislocation model.

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/content/papers/10.3997/2214-4609.20140716
2014-06-16
2024-04-19

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References

  1. Aki, K.
    [2004] A new view of earthquake and volcano precursors, Earth Planets Space, 56, 689–713.
     [Google Scholar]
  2. Bruner, M. W.
    [1976] Comment on “Seismic velocities in dry and saturated cracked solids” by R.J.O’Connel and B.Budiansky, Journal of Geophysical Research, 81, 2573–2576.
     [Google Scholar]
  3. Henyey, S. F. and Pomphrey, N.
    [1982] Self-consistent elastic moduli of a cracked solid, Geophysical Research letters, 9, 903–906.
     [Google Scholar]
  4. Hiramatsu, Y., IwatsukiK., UeyamaS. and IidaT.
    [2010] Spatial variation in shear wave splitting of the upper crust in the zone of inland high strain rate, central Japan, Earth Planets Space, 62, 675–684.
     [Google Scholar]
  5. Jin, A., AkiK., LiuA. and Keilis-BorokV.I.
    [2004] Seismological evidence for the brittle-ductile interaction hypothesis on earthquake loading, Earth Planets Space, 56, 823–830.
     [Google Scholar]
  6. Nur, A.
    [1971] Effect of Stress on Velocity Anisotropy in Rocks with Cracks, Journal of Geophysical Research, 76, 2022–2034.
     [Google Scholar]
  7. Okada, Y.
    [1992] Internal deformation due to shear and tensile faults in a half-space, Bulltein of the Seismological Society of America, 82, 1018–1040
     [Google Scholar]
  8. Okada, Y., Kasahara, K., Hori, S., Obara, K., Sekiguchi, S., Fujiwara, H., and Yamamoto, A.
    [2004] Recent progress of seismic observation networks in Japan—Hi-net, F-net, K-NET and KiK-net—, Earth Planets Space, 56, 15–28.
     [Google Scholar]
  9. Okamoto, K., Mikada, H., Goto, T.-N. and Takekawa, J.
    [2013] Numerical analysis of the relationship between time-variant coda-Q and the variation in crustal stress, Geophysical Journal International, 195, 575–581.
     [Google Scholar]
  10. Saenger, E.H., GoldN. and ShapiroS.A.
    [2000] Modeling the propagation of elastic waves using a modified finite-difference grid, Wave Motion, 31, 77–92.
     [Google Scholar]
  11. Sato, Y.
    [1992] Theoretical study on dilatancy of dry crack, Journal of Society of Materials Science, Japan, 41, 1068–1074 (in Japanese with English abstract)
     [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.20140716
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Temporal Variation in Subsurface Stress Estimated from Seismic Scattering
Conference Proceedings 2014, 1 (2014); https://doi.org/10.3997/2214-4609.20140716
/content/papers/10.3997/2214-4609.20140716
/content/papers/10.3997/2214-4609.20140716
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