- Open Access
Average shear-wave velocity structure of the Kamchatka peninsula from the dispersion of surface waves
Earth, Planets and Space volume 52, pages573–577(2000)
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.
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).
Balesta, S.T., The Earth Crust and Magmatic Chambers in Modern Volcanic Regions, 135 pp., Nauka, Moscow, 1981 (in Russian).
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).
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.
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.
Dziewonski, A. M. and D. L. Anderson, Preliminary reference Earth model, Phys. Earth Planet. Inter., 25, 297–356, 1981.
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.
Ekström, G., J. Tromp, and E. W. F. Larson, Measurements and global models of surface wave propagation, J. Geophys. Res., 102, 8147–8158, 1997.
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.
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.
Herrmann, R. B., Computer Programs in Seismology, Volume IV: Surface Waves Inversion, Saint Luis University, Missouri, 1987.
Kennett, B. L. N., Seismic Wave Propagation in Stratified Media, 342 pp., Cambridge University Press, Cambridge, England, 1985.
Kennett, B. L. N. and E. R. Engdahl, Traveltimes for global earthquake location and phase identification, Geophys. J. Int., 105, 429–465, 1991.
Kuzin, I.P, Focal Zone and the Upper Mantle Structure in the Region of Eastern Kamchatka, 131 pp., Nauka, Moscow, 1974 (in Russian).
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.
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.
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).
Randall, G. E., Efficient calculation of composite differential seismograms for laterally homogeneous Earth model, Geophys. J. Int., 118, 245–254, 1994.
Ritzwoller, M. H. and A. L. Levshin, Eurasian surface wave tomography: Group velocities, J. Geophys. Res., 103, 4839–4868, 1998.
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.
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).
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.
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).
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.
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).
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.
Center for Imaging the Earth’s Interior, University of Colorado at Boulder, Campus Box 390, Boulder, CO 80309, U.S.A.
About this article
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
- Group Velocity
- Dispersion Curve
- Rayleigh Wave
- Love Wave
- Group Velocity Dispersion