Skip to main content

Average shear-wave velocity structure of the Kamchatka peninsula from the dispersion of surface waves

Abstract

An average shear-wave velocity structure has been estimated for the path between the Kamchatka Isthmus and Petropavlovsk-Kamchatski. It is obtained from the Monte Carlo inversion of the Rayleigh and Love wave group velocity dispersion curves measured using broad-band seismograms of events in Northern Kamchatka recorded by the IRIS station PET in Petropavlovsk-Kamchatski. The Moho interface was found at a depth of 35±5 km and the Konrad one at 18±4 km. An important feature of the found structure is a low velocity in the upper mantle. This result is coherent with the recent and present-day volcanic activity in Kamchatka. Synthetic long period seismograms computed for the obtained structure are in good agreement with observed ones.

References

  1. Anosov, G. I., S. K. Bikkenina, A. A. Popov, K. F. Sergeev, V. K. Utnasin, V. I. Fedorchenko, Deep Seismic Sounding of Kamchatka, 130 pp., Nauka, Moscow, 1978 (in Russian).

    Google Scholar 

  2. Balesta, S.T., The Earth Crust and Magmatic Chambers in Modern Volcanic Regions, 135 pp., Nauka, Moscow, 1981 (in Russian).

    Google Scholar 

  3. Balesta, S. T. and L. I. Gontovaya, The seismic model of the Earth’s crust in the Aisatic-Pacific transition zone, Volcanology and Seismology, 4, 83–90, 1985 (in Russian).

    Google Scholar 

  4. Campillo, M., S. K. Singh, N. Shapiro, J. Pacheco, and R. B. Herrmann, Crustal structure south of the Mexican Volcanic Belt, based on group velocity dispersion, Geofis. Int., 35, 361–370, 1996.

    Google Scholar 

  5. Curtis, A., J. Trampert, R. Snieder, B. Dost, Eurasian fundamental mode surface wave phase velocities and their relationship with tectonic structures, J. Geophys. Res., 103, 26919–26947, 1998.

    Article  Google Scholar 

  6. Dziewonski, A. M. and D. L. Anderson, Preliminary reference Earth model, Phys. Earth Planet. Inter., 25, 297–356, 1981.

    Article  Google Scholar 

  7. Dziewonski, A. M., S. Bloch, and N. Landisman, A technique for the analysis of transient seismic signals, Bull. Seism. Soc. Am., 59, 427–444, 1969.

    Google Scholar 

  8. Ekström, G., J. Tromp, and E. W. F. Larson, Measurements and global models of surface wave propagation, J. Geophys. Res., 102, 8147–8158, 1997.

    Google Scholar 

  9. Gorbatov, A. V, V. Kostoglodov, G. Suarez, and E. Gordeeev, Seismicity and structure of the Kamchatka subduction zone, J. Geophys. Res., 102, 17883–17898, 1997.

    Article  Google Scholar 

  10. Gorbatov, A., J. Dominguez, G. Suarez, V. Kostoglodov, D. Zhao, and E. Gordeev, Tomographic imaging of the P-wave velocity structure beneath the Kamchatka peninsula, Geophys. J. Int., 137, 269–279, 1999.

    Article  Google Scholar 

  11. Herrmann, R. B., Computer Programs in Seismology, Volume IV: Surface Waves Inversion, Saint Luis University, Missouri, 1987.

    Google Scholar 

  12. Kennett, B. L. N., Seismic Wave Propagation in Stratified Media, 342 pp., Cambridge University Press, Cambridge, England, 1985.

    Google Scholar 

  13. Kennett, B. L. N. and E. R. Engdahl, Traveltimes for global earthquake location and phase identification, Geophys. J. Int., 105, 429–465, 1991.

    Article  Google Scholar 

  14. Kuzin, I.P, Focal Zone and the Upper Mantle Structure in the Region of Eastern Kamchatka, 131 pp., Nauka, Moscow, 1974 (in Russian).

    Google Scholar 

  15. Levshin, A. L., T B. Yanovskaia, A. V. Lander, B. G. Bukchin, M. P. Barmin, L. I. Ratnikova, and E. N. Its, Surface waves in vertically inhomopgeneous media, in Seismic Surface Waves in a Laterally Inhomogeneous Earth, Edited by V. I. Keilis-Borok, pp. 131–182, Kluwer Academic Publisher, Dordrecht, 1989.

    Google Scholar 

  16. Levshin, A. L., M. H. Ritzwoller, and J. S. Resovsky, Source effects on surface wave group travel times and group velocity maps, Phys. Earth Planet. Inter, 115, 293–312, 1999.

    Article  Google Scholar 

  17. Levshin, A. L., M. H. Ritzwoller, M. P. Barmin, A. Villaseñor, and C. A. Padgett, New constrains on the Arctic crust and uppermost mantle: surface wave group velocities, Pn, and Sn, Phys. Earth Planet. Inter., 2000 (in press).

  18. Randall, G. E., Efficient calculation of composite differential seismograms for laterally homogeneous Earth model, Geophys. J. Int., 118, 245–254, 1994.

    Article  Google Scholar 

  19. Ritzwoller, M. H. and A. L. Levshin, Eurasian surface wave tomography: Group velocities, J. Geophys. Res., 103, 4839–4868, 1998.

    Article  Google Scholar 

  20. Shapiro, N. M. and S. K. Singh, A systematic error in estimating surface-wave group-velocity dispersion curves and a procedure for its correction, Bull. Seism. Soc. Am., 89, 1138–1142, 1999.

    Google Scholar 

  21. Shapiro, M. N., V. A. Ermakov, A. E. Shantser, V. I. Shuldiner, A. I. Khanchuk, and S. V. Visotski, Description of the Tectonic Evolution of Kamchatka, Nauka, Moscow, 1987 (in Russian).

    Google Scholar 

  22. Shapiro, N. M., M. Campillo, A. Paul, S. K. Singh, D. Jongmans, and F. J. Sanchez-Sesma, Surface wave propagation across the Mexican Volcanic Belt and origin of the long-period seismic-wave amplification in the Valley of Mexico, Geophys. J. Int., 128, 151–166, 1997.

    Article  Google Scholar 

  23. Slavina, L. B. and S. A. Fedotov, The velocities of compressional waves in the upper mantle beneath Kamchatka, in Seismicity and Earthquake Prediction, Edited by S. A. Fedotov, pp. 188–200, Nauka, Moscow, 1974 (in Russian).

    Google Scholar 

  24. Slavina, L. B. and N. B. Pivovarova, Three-dimensional velocity models of focal zones and refinement of hypocentral parameters, Phys. Earth Planet. Inter, 75, 77–78, 1992.

    Article  Google Scholar 

  25. Smirnov, Y. B. and V M. Sugrobov, Earth hit flow in Kuril-Kamchatka and Aleutian provinces, Volcanology and Seismology, 2, 3–18, 1980 (in Russian).

    Google Scholar 

  26. Stange, S. and W. Friederich, Guided wave propagation across sharp lateral heterogeneities: the complete wavefield at a cylindrical inclusion, Geophys. J. Int., 11, 470–482, 1992.

    Article  Google Scholar 

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to N. M. Shapiro.

Additional information

Center for Imaging the Earth’s Interior, University of Colorado at Boulder, Campus Box 390, Boulder, CO 80309, U.S.A.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Shapiro, N.M., Gorbatov, A.V., Gordeev, E. et al. Average shear-wave velocity structure of the Kamchatka peninsula from the dispersion of surface waves. Earth Planet Sp 52, 573–577 (2000). https://doi.org/10.1186/BF03351665

Download citation

Keywords

  • Group Velocity
  • Dispersion Curve
  • Rayleigh Wave
  • Love Wave
  • Group Velocity Dispersion