1887

Abstract

Summary

Understanding source mechanisms of induced earthquakes is important to distinguish them from natural ones. The authors of the paper have developed a method for determination of seismic moment tensor using data from a small number of seismic stations. The use of only direct P-waves for the inversion reduces its sensitivity to inaccurate knowledge of medium model between the source and the stations and improves the reliability of the resulting tensor and, in such a way, our ability to distinguish between the natural and induced earthquakes.

The authors also propose a method for determination of extended source parameters (finite-fault solution) by inversion of wave field also from only direct P-waves registered by a small number of seismic stations. It enables to determine the distribution of slips along the fault, providing a valuable resource for investigation and better understanding of source processes, ultimately guiding to improved seismic-hazard analysis in the areas of induced earthquakes.

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/content/papers/10.3997/2214-4609.201902161
2019-06-17
2020-07-02
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References

  1. Aki, K. and Richards, P.G.
    (2002). Quantitative seismology. Theory and methods. University Science Books,Sausalito, California.
  2. Cesca, S., Rohr, A. and Dahm, T.
    (2013). Discrimination of induced seismicity by full moment tensor inversion and decomposition. J. Seismol., 17(1), 147–163, doi:10.1007/s10950‑012‑9305‑8.
    https://doi.org/10.1007/s10950-012-9305-8 [Google Scholar]
  3. Dziewonski, A.M, Chou, T.A. and Woodhouse, J.H.
    (1981). Determination of earthquake source parameters from waveform data for studies of regional and global seismicity. J.geophys.Res., 86, 2825–2852.
    [Google Scholar]
  4. Godano, M., Bardainne, T., Regnier, M. and Deschamps, A.
    (2011). Momenttensor determination by nonlinear inversion of amplitudes. Bull.seism. Soc.Am., 101, 366–378.
    [Google Scholar]
  5. Guilhem, A., Hutchings, L., Dreger, D.S. and Johnson, L.R.
    (2014). Moment tensor inversions of M ~ 3 earthquakes in the Geysers geothermal fields.J. Geophys. Res. Solid Earth, 119, 2121–2137, doi:10.1002/2013JB010271.
    https://doi.org/10.1002/2013JB010271 [Google Scholar]
  6. Hardebeck, J.L. and Shearer, P.M.
    (2003). Using S/P amplitude ratios toconstrain the focal mechanisms of small earthquakes. Bull.seism. Soc.Am., 93, 2432–2444.
    [Google Scholar]
  7. Julian, B.R., Miller, A.D. and Foulger, G.R.
    (1998). Non-double-couple earthquakes I. Theory, Rev. Geophys., 36(4), 525–549, doi:10.1029/98RG00716.
    [Google Scholar]
  8. Mai, P.M., Schorlemmer, D., Page, M., Ampuero, J.-P., Asano, K.,Causse, M.,Custodio, S., Fan, W.,Festa, G.,Galis, M., Malytskyy, D. et al.
    (2016). The earthquake-Source Inversion Validation (SIV) project. Seismol. Res. Lett., 87(3), 690–708, doi: 10.1785/0220150231.
    https://doi.org/10.1785/0220150231 [Google Scholar]
  9. Malytskyy, D.
    [2010] Analytic-numerical approaches to the calculation of seismic moment tensor as a function of time. Geoinformatika, 1, 79–85.
    [Google Scholar]
  10. (2016). Mathematical modeling in the problems of seismology. NaukovaDumka, Kyiv Miller, A.D., Julian, B.R. and Foulger, G.R. (1998). Three-dimensional seismic structure and moment tensors of non-double-couple earthquakes at the Hengill-Grensdalur volcanic complex, Iceland. Geophys. J. Int., 133, 309–325.
    [Google Scholar]
  11. Sileny, J., Panza, G.F. and Campus, P.
    (1992).Waveform inversion for point source moment tensor retrieval with variable hypocentral depth and structural model. Geophys. J. Int., 109, 259–274.
    [Google Scholar]
  12. Sipkin, S.A.
    (1986). Estimation of earthquake source parameters by the inversion of waveform data: Global seismicity, 1981-1983. Bull.seism. Soc.Am., 76, 1515–1541.
    [Google Scholar]
  13. Vavrychuk, V. and Kuhn, D.
    (2012). Moment tensor inversion of waveforms: a two-step time frequency approach. Geophys. J. Int., 190, 1761–1776.
    [Google Scholar]
  14. Walter, W.R. and Brune, J.N.
    (1993). Spectral of seismic radiation from a tensile crack.J. Geophys. Res.,98(B3), 4449–4459, doi:10.1029/92JB02414.
    https://doi.org/10.1029/92JB02414 [Google Scholar]
  15. Weber, Z.
    (2016). Probabilistic waveform inversion for 22 earthquake moment tensors in Hungary: new constraints on the tectonic stress pattern inside the Pannonian basin. Geophys. J. Int.204, 236–249. F-net pageretrived fromhttp://www.fnet.bosai.go.jp/event/tdmt.php?_id=20181212084900&LANG=en
    [Google Scholar]
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